<script data-pm-proxy="intercept"></script><?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"><channel><title><![CDATA[The RightDose: Truth in Every Drop]]></title><description><![CDATA[Longevity, wellness, and conscious living—without the noise. Translating data on ingredients, toxins, and labels, into clear choices you can act on. Subscribers get first access to our upcoming beta: RightShop.


]]></description><link>https://rightdose.substack.com</link><image><url>https://substackcdn.com/image/fetch/$s_!7TtE!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fef9241d3-5bfd-4041-b672-900780993ffa_1280x1280.png</url><title>The RightDose: Truth in Every Drop</title><link>https://rightdose.substack.com</link></image><generator>Substack</generator><lastBuildDate>Fri, 04 Sep 2026 16:36:30 GMT</lastBuildDate><atom:link href="/__u/rightdose.substack.com/feed" rel="self" type="application/rss+xml"/><copyright><![CDATA[RightShop]]></copyright><language><![CDATA[en]]></language><webMaster><![CDATA[rightdose@substack.com]]></webMaster><itunes:owner><itunes:email><![CDATA[rightdose@substack.com]]></itunes:email><itunes:name><![CDATA[Daniela Kelloway]]></itunes:name></itunes:owner><itunes:author><![CDATA[Daniela Kelloway]]></itunes:author><googleplay:owner><![CDATA[rightdose@substack.com]]></googleplay:owner><googleplay:email><![CDATA[rightdose@substack.com]]></googleplay:email><googleplay:author><![CDATA[Daniela Kelloway]]></googleplay:author><itunes:block><![CDATA[Yes]]></itunes:block><item><title><![CDATA[The One Time I Didn’t Unpack My Skincare Bag]]></title><description><![CDATA[I am, by most reasonable definitions, a high-maintenance traveller.]]></description><link>https://rightdose.substack.com/p/the-one-time-i-didnt-unpack-my-skincare</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-one-time-i-didnt-unpack-my-skincare</guid><dc:creator><![CDATA[Shreya Vohora]]></dc:creator><pubDate>Tue, 01 Sep 2026 07:01:58 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!FBfC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!FBfC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 424w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 848w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 1272w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!FBfC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png" width="762" height="958" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 424w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 848w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 1272w, /__u/substackcdn.com/image/fetch/$s_!FBfC!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584b685f-68c8-440a-9ad2-a3dda448a81b_762x958.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p style="text-align: justify;">I am, by most reasonable definitions, a high-maintenance traveller.</p><p style="text-align: justify;">Not in the demanding-an-upgrade sense, but rather in the I-will-pack-my-entire-bathroom-into-a-carry-on sense. My skincare and haircare routine is something I&#8217;ve spent real time and money building. I know which cleanser doesn&#8217;t strip my skin on a flight, which SPF layers under makeup without pilling, which shampoo my scalp actually tolerates. Replicating that routine with whatever the hotel leaves by the sink is not something I&#8217;m willing to gamble on&#8230;usually.</p><p style="text-align: justify;">Dubai was different.</p><p style="text-align: justify;">I&#8217;d booked into a hotel with a sustainability focus, which I&#8217;ll admit I noted as a nice detail rather than a meaningful one. &#8220;Sustainable&#8221; in hospitality often means a card asking you to reuse your towels and a half-hearted recycling bin. I wasn&#8217;t expecting it to change what I put on my skin.</p><p style="text-align: justify;">Then I saw the bathroom products. The brand was Proverb, a UK-based skincare company I recognised. EWG-certified clean. Sulphate, paraben, PEG, and petroleum-free. Plant-based formulations, home-compostable packaging, no synthetic fragrance. Refillable containers rather than single-use plastic bottles. I picked up the body wash, read the ingredient list the way I always do, and did something I almost never do in a hotel bathroom.</p><p>I left my own stuff in the bag.</p><div><hr></div><h2>Hotels are quietly overhauling what they put on your skin</h2><p style="text-align: justify;">What happened in that Dubai bathroom isn&#8217;t just an anecdote, it reflects a shift that&#8217;s been building across the hospitality industry for several years and is now accelerating.</p><p style="text-align: justify;">The global hotel bath amenity market was valued at $24 billion USD in 2024 and is projected to reach $45.29 billion by 2030, with sustainability driving a significant share of that growth. The Eco Friendly Hotel Amenities market is projected to reach $8.2 billion by 2034. In New York, hotels are legally required to replace single-use plastic toiletries under 12 ounces with refillable dispensers. The pressure is regulatory, commercial, and increasingly guest-driven.</p><p style="text-align: justify;">The traveller preference data is clear: 78% of travellers say they are more likely to choose a hotel that avoids single-use plastics, and 75% of guests are willing to pay up to 75% more for hotels accommodations providing eco-friendly options. Hotels are responding by partnering with brands that can credibly deliver both clean formulations and sustainable packaging, not just one or the other.</p><p style="text-align: justify;">Proverb is one of the brands landing in that space. Founded by a skincare expert and a former professional rugby player with degrees in Human Health and Genetics from Oxford, the brand&#8217;s positioning sits at the intersection of performance and clean ingredients: sulphate-free, paraben-free, PEG-free, made in England, and the first male skincare brand awarded EWG certification. Their refillable format is genuine, not cosmetic. Products arrive in home-compostable pouches, the dispensers stay, the plastic doesn&#8217;t.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-one-time-i-didnt-unpack-my-skincare?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-one-time-i-didnt-unpack-my-skincare?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h2>Why this matters beyond the feel-good</h2><p style="text-align: justify;">The ingredients in hotel bathroom products are not a trivial consideration. They sit against your skin every day of a trip, often in amounts larger than your usual routine, because hotel showers run hot and we tend to linger. Sulphates strip the skin&#8217;s acid mantle. Synthetic fragrance is one of the most common contact allergens in personal care. Parabens and PEGs sit on the restricted or flagged list in EU cosmetics regulation for good reason.</p><p style="text-align: justify;">A hotel that has done the ingredient work is not just doing sustainability theatre. It&#8217;s removing a set of exposures you&#8217;d normally have to manage yourself which, for a health-conscious traveller dragging her skincare collection across an airport, is not a small thing.</p><div><hr></div><h2>A brand worth knowing</h2><p><strong>Proverb</strong> &#8212; <a href="https://proverbskin.com">proverbskin.com</a></p><p style="text-align: justify;">Founded by Kirstie Hawkes, with 20 years of organic skincare expertise, and Luke Sherriff, former Harlequins and Nottingham RFC rugby professional and Oxford Human Health and Genetics graduate. EWG certified, plant-based, refillable. The brand&#8217;s philosophy: don&#8217;t put anything in a product that you wouldn&#8217;t put in a smoothie.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!srmA!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!srmA!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!srmA!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!srmA!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!srmA!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!srmA!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F987db52b-1569-401c-9135-e3cfb8d0565d_1536x1859.jpeg" width="484" height="585.7786458333334" 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6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h2>You&#8217;ve been doing the research yourself long enough</h2><p style="text-align: justify;">If you&#8217;re the kind of traveller who packs her own shampoo because the hotel alternative isn&#8217;t worth the risk then you already understand the problem this newsletter exists to solve. The gap between what a product claims and what it actually contains is real, and it doesn&#8217;t disappear just because you&#8217;re on holiday.</p><p style="text-align: justify;">RightShop scores the products you already use, and the ones you&#8217;re considering, so you don&#8217;t have to do this alone. <a href="https://rightshop.ai">Join the waitlist at rightshop.ai</a></p><p style="text-align: justify;"><em>Forward this to someone whose carry-on is 80% skincare.</em></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p>Shreya Vohora is the Co-Founder, President, and Chief Product Officer of RightShop. She is a systems thinker, entrepreneur, and builder sharing her thoughts and experiences on environmental health factors, wellness, and longevity. She's on a mission to shift how we think about the spaces and things that shape our wellbeing.</p><div><hr></div><h2>Don&#8217;t take my word for it &#8212; here&#8217;s where I got mine</h2><ol><li><p>Proverb &#8212; Natural Refillable Body Wash, ingredient and brand information: <a href="https://proverbskin.com/pages/natural-refillable-body-wash">https://proverbskin.com/pages/natural-refillable-body-wash</a></p></li><li><p>Fortune Business Insights &#8212; U.S. Hotel Toiletries Market, 2024: <a href="https://www.fortunebusinessinsights.com/u-s-hotel-toiletries-market-106825">https://www.fortunebusinessinsights.com/u-s-hotel-toiletries-market-106825</a></p></li><li><p>Global Growth Insights &#8212; Hotel Bath Amenity Market Size &amp; Share, 2033: <a href="https://www.globalgrowthinsights.com/market-reports/hotel-bath-amenity-market-117018">https://www.globalgrowthinsights.com/market-reports/hotel-bath-amenity-market-117018</a></p></li><li><p>DataIntelo &#8212; Eco Friendly Hotel Amenities Market, 2026: <a href="https://dataintelo.com/report/eco-friendly-hotel-amenities-market">https://dataintelo.com/report/eco-friendly-hotel-amenities-market</a></p></li><li><p>Wenesy &#8212; Top 10 Trends in Sustainable Hotel Amenities for 2025: <a href="https://www.wenesy.com/news/top-10-trends-in-sustainable-hotel-amenities-for-2025.html">https://www.wenesy.com/news/top-10-trends-in-sustainable-hotel-amenities-for-2025.html</a></p></li><li><p>EWG Skin Deep &#8212; Proverb brand certification: <a href="https://www.ewg.org/skindeep/">https://www.ewg.org/skindeep/</a></p></li></ol><div><hr></div>]]></content:encoded></item><item><title><![CDATA[Have you thought about the chemicals in the most intimate product you use every month?]]></title><description><![CDATA[Here is a comparison that stopped me when I first worked it out.]]></description><link>https://rightdose.substack.com/p/have-you-thought-about-the-chemicals</link><guid isPermaLink="false">https://rightdose.substack.com/p/have-you-thought-about-the-chemicals</guid><dc:creator><![CDATA[Angela Loureiro]]></dc:creator><pubDate>Tue, 18 Aug 2026 07:01:04 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!UKHZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><span>Here is a comparison that stopped me when I first worked it out.</span></p><p><span>Your shampoo has a full ingredient list on the back, ranked by concentration, governed by federal labeling law. Your moisturiser lists every compound, including the ones buried in &#8220;fragrance.&#8221; Your foundation, your lip balm, and your deodorant are all legally required to disclose what&#8217;s inside, in order, on the label.</span></p><p><span>The tampon you use for five days every month? The FDA does not require menstrual pad manufacturers to disclose the specific materials or chemical components in their products. Unlike food, which has a Nutrition Facts label, or cosmetics, which require an ingredient list under INCI nomenclature, menstrual devices have no mandatory ingredient disclosure standard. A pad can be legally sold in the United States with essentially no information about what its layers are made of, what bleaching process was used, or what adhesive compounds are in its wings.</span></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!UKHZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 424w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 848w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 1272w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!UKHZ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png" width="805" height="709" 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/__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 424w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 848w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 1272w, /__u/substackcdn.com/image/fetch/$s_!UKHZ!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99f50578-6efd-4e20-bb4b-c3050a6751c5_805x709.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h1>TL;DR</h1><ul><li><p>Menstrual products are used intimately and repeatedly, yet manufacturers in the US and Canada generally aren&#8217;t required to disclose their full ingredient lists. </p></li><li><p>Independent testing has found PFAS and, in some cases, heavy metals in menstrual products, including products marketed as &#8220;organic&#8221; or &#8220;natural.&#8221; </p></li><li><p>Some chemicals can be absorbed through vaginal tissue, but researchers are still determining how much actually transfers from specific products into the body during normal use.</p></li><li><p>Period underwear showed the highest PFAS levels across studies, but the takeaway isn&#8217;t to panic or throw out everything you use. </p></li><li><p>For now, look beyond marketing claims like &#8220;natural&#8221; or &#8220;non-toxic,&#8221; consider certifications such as Global Organic Textile Standard (GOTS), and be aware that product-specific testing is still evolving.</p></li><li><p>Silicone or rubber menstrual cups have consistently tested cleaner than fabric-based products across multiple studies. </p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div></li></ul><div><hr></div><h1><strong><span>The medical device loophole</span></strong></h1><p><span>The FDA classifies menstrual products as medical devices, which means they are not subject to the same labeling laws as other consumer items. Tampons require premarket review. Pads and menstrual cups are considered exempt from regulatory guidance and do not require premarket review at all. What review does exist doesn&#8217;t include ingredient disclosure: while tampons do require review, the FDA &#8220;does not clear or approve individual materials that are used in the fabrication of medical devices.&#8221;</span></p><p><span>The fragrance situation deserves its own mention. Laws protecting trade secrets keep details about fragrances in pads and tampons confidential so competitors can&#8217;t copy the formulas. The same one-word loophole that hides hundreds of compounds in your perfume hides them in your menstrual products too, products that sit against mucosal tissue for hours at a time, several days a month, for decades of a person&#8217;s life.</span></p><p><strong><span>On average, a person uses up to 17,000 tampons or pads in their lifetime. The cumulative exposure question is not abstract.</span></strong></p><div><hr></div><h1><span>What independent testing has actually found</span></h1><p><span>When researchers started testing menstrual products themselves, since regulatory bodies weren&#8217;t, the results were worth paying attention to.</span></p><p><span>In a series of lab analyses commissioned between 2020 and 2022 by the consumer watchdog site Mamavation and Environmental Health News, 48% of sanitary pads, incontinence pads, and panty liners tested were found to contain PFAS, as were 22% of tampons and 65% of period underwear. PFAS, per- and polyfluoroalkyl substances, are the same forever chemicals found in non-stick cookware and waterproof clothing, linked to hormone disruption, immune suppression, and certain cancers.</span></p><p><span>The detail that matters most: out of the 22 products that tested positive for PFAS, 13 (59%) were explicitly advertised as &#8220;organic,&#8221; &#8220;natural,&#8221; &#8220;non-toxic,&#8221; &#8220;sustainable,&#8221; or using &#8220;no harmful chemicals.&#8221; The clean label and the clean product are not the same thing.</span></p><p><span>More recently, a study published in </span><em><span>Environmental Science &amp; Technology Letters</span></em><span> in July 2025, conducted by researchers including Graham Peaslee at the University of Notre Dame, investigated PFAS in 59 reusable feminine hygiene products across five categories. Extremely high levels of PFAS were found in a small sampling of reusable menstrual pads and period underwear, with intentional use suspected in about a third of samples, meaning the PFAS weren&#8217;t contaminated. They were added on purpose, likely for moisture resistance.</span></p><p><span>In 2025, scientists also tested over 100 menstrual products including pads, tampons, and period underwear. Most tampon cores had very low or undetectable PFAS levels, which is worth noting, because the picture is genuinely product-specific. Period underwear, particularly, appears to be the higher-risk category. And separately, researchers at UC Berkeley found tampons from several brands contain toxic heavy metals including lead, arsenic, and cadmium.</span></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/have-you-thought-about-the-chemicals?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/have-you-thought-about-the-chemicals?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h1><strong><span>The critical question: Does it actually get absorbed?</span></strong></h1><p><span>This is the question that determines whether any of the testing above matters, and it deserves its own answer.</span></p><p><span>Vulvar and vaginal tissue is highly permeable, more so than skin on most of the rest of the body, and there&#8217;s no equivalent to the liver&#8217;s first-pass metabolism to break compounds down before they reach circulation. This isn&#8217;t new information. It&#8217;s the same mechanism behind toxic shock syndrome: the TSST-1 toxin crosses the vaginal mucosa directly into the bloodstream, which is part of why a small number of Rely tampon users in 1980 became critically ill fast.</span></p><p><span>For the specific chemicals in this piece, the research is real but still catching up. A 2025 study found that volatile organic compounds, used in fragrances and adhesives, can be absorbed through the vaginal mucosa. For phthalates, researchers modeling exposure have had to use estimated transdermal absorption rates of 20 to 100%, because the actual transfer rate from a pad or tampon into the body hasn&#8217;t been directly measured yet. For PFAS, absorption through skin and mucosal tissue depends heavily on the specific compound. Smaller PFA molecules cross more easily than larger ones, and acidity changes how readily they pass through.</span></p><p><span>The honest summary: </span><strong><span>the tissue is absorptive enough that this is a legitimate route of exposure, not a hypothetical one.</span></strong><span> What&#8217;s still being worked out is how much of a given chemical actually transfers from a specific product into the body under real use conditions.</span></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!0GMg!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 1272w, 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/__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!0GMg!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a16d303-ff2a-4107-b609-a0e51fd34304_1408x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h1><strong><span>Where things stand in the US</span></strong></h1><p><span>Change is beginning to move, unevenly.</span></p><p><span>In 2021, New York became the first state to enact a menstrual product disclosure law requiring companies to list all intentionally added ingredients on packaging. Vermont and Colorado have both passed laws banning intentionally added PFAS in menstrual products, taking effect January 1, 2026. Connecticut enacted a notification requirement for PFAS-containing products.</span></p><p><span>At the federal level, the FDA published draft guidance in November 2025 recommending that ingredient disclosure, including fragrances and deodorants, appear on all menstrual product outer package labels, and that manufacturers evaluate products for contaminants. It is draft guidance, not law. It is not yet binding on anyone. But it is the first time the federal agency has formally recommended that you should know what&#8217;s in the product.</span></p><p><span>The </span><em><span>Menstrual Products Right to Know Act</span></em><span>, which would make ingredient disclosure a federal requirement, has been introduced in Congress multiple times. As of 2025, it has not been enacted.</span></p><div><hr></div><h1><strong><span>Where things stand in Canada</span></strong></h1><p><span>Canadians are working with a different regulatory split, and honestly, not a more transparent one.</span></p><p><span>Health Canada classifies tampons as Class II medical devices, which means they go through a licensing process before they can be sold. But that license covers absorbency standards and required warnings about toxic shock syndrome, not ingredient disclosure. There is no requirement for a tampon label to list what it&#8217;s actually made of.</span></p><p><span>Pads are in a stranger position. They aren&#8217;t regulated as medical devices in Canada at all, which means there&#8217;s no premarket review and no labelling requirement specific to menstrual pads. Menstrual cups fall under Class II as well, but ingredient transparency isn&#8217;t part of what that classification requires either.</span></p><p><span>On the chemical safety side, Canada is in the middle of a broader PFAS crackdown, not a menstrual-product-specific one. The Prohibition of Certain Toxic Substances Regulations, 2025 come into force June 30, 2026, restricting PFAS in select consumer goods. Health Canada has also flagged a &#8220;Strategy for Enhancing the Disclosure of Substances in Products,&#8221; aimed at giving consumers more visibility into which items contain chemicals of concern. Neither of these is a menstrual-product ingredient law, and neither is in force yet in a way that would put an ingredient list on your next box of pads.</span></p><p><span>There is no Canadian equivalent to New York&#8217;s disclosure law right now. No province has passed one either. If you want to know what&#8217;s actually in a Canadian-sold pad or tampon, the honest answer is that the label won&#8217;t tell you, and the law doesn&#8217;t require it to.</span></p><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/have-you-thought-about-the-chemicals?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! This post is public so feel free to share it.</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/have-you-thought-about-the-chemicals?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/have-you-thought-about-the-chemicals?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></div><div><hr></div><h1><strong><span>What you can do with this</span></strong></h1><p><span>The research is still catching up to the product landscape, and individual risk depends on the specific product, how it&#8217;s used, and duration of exposure over time. This is not a &#8220;throw everything out&#8221; situation.</span></p><p><span>A few things are clear enough to act on now.</span></p><ul><li><p><span>Period underwear showed the highest PFAS levels across studies, and some were determined to contain PFAS intentionally manufactured into the product. If that&#8217;s your primary product, it&#8217;s worth looking at tested brands or switching to an alternative for daily use.</span></p></li><li><p><span>Tampon scores appear to be lower risk based on current data, though the heavy metals finding from Berkeley means the picture continues to evolve.</span></p></li><li><p><span>Look for GOTS-certified organic cotton in tampons and pads. This certification covers pesticide use and processing standards and is more rigorous than the word &#8220;natural&#8221; on a front label, which means essentially nothing. </span></p></li><li><p><span>Menstrual cups, silicone or rubber, have consistently tested cleaner than fabric-based products across multiple studies, and they&#8217;re reusable.</span></p></li></ul><p><span>The deeper issue here isn&#8217;t any single product. It&#8217;s that a product used intimately, repeatedly, over a reproductive lifetime has operated without the basic disclosure requirements we apply to hand lotion.</span></p><p><span>&#8220;The hardest part to swallow,&#8221; said Alex Friedman, co-founder of period product brand Lola, &#8220;is why this is even up for debate. We should all know what&#8217;s in these products.&#8221;</span></p><p><span>That&#8217;s not a radical position. It&#8217;s the minimum.</span></p><div><hr></div><p><span>Angela is Research and Marketing Manager at RightShop, a health-tech startup that gives consumer products a personalised health score based on ingredient safety. The RightDose is where she thinks out loud about what&#8217;s actually in the things we use.</span></p><p><span>If you&#8217;ve ever run a period product drive or worked on menstrual equity, you know the access issue is real. Ingredient safety and affordability are both worth fighting for. They&#8217;re not in conflict.</span></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><h1><strong><span>Sources and links</span></strong></h1><ul><li><p><span>CBS News, &#8220;Federal rules don&#8217;t require period product ingredients on packaging labels. States are stepping in.&#8221;:</span><a href="https://www.cbsnews.com/news/menstrual-pads-tampons-fda-ingredients-labels/"><span> https://www.cbsnews.com/news/menstrual-pads-tampons-fda-ingredients-labels/</span></a></p></li><li><p><span>FDA, Menstrual Products Performance Testing and Labeling guidance:</span><a href="https://www.fda.gov/media/189362/download"><span> https://www.fda.gov/media/189362/download</span></a></p></li><li><p><span>Frontiers in Reproductive Health, &#8220;Menstrual tampons and vaginal pessaries: regulation of intravaginal medical devices by the US FDA&#8221;:</span><a href="https://www.frontiersin.org/journals/reproductive-health/articles/10.3389/frph.2023.1224421/full"><span> https://www.frontiersin.org/journals/reproductive-health/articles/10.3389/frph.2023.1224421/full</span></a></p></li><li><p><span>Learn Body Literacy, &#8220;Safe Menstrual Products&#8221;:</span><a href="https://www.learnbodyliteracy.com/menstrual-products"><span> https://www.learnbodyliteracy.com/menstrual-products</span></a></p></li><li><p><span>California Legislature, AB-2515, Menstrual products: PFAS:</span><a href="https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240AB2515"><span> https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240AB2515</span></a></p></li><li><p><span>Health Canada, &#8220;Menstrual tampons&#8221;:</span><a href="https://www.canada.ca/en/health-canada/services/drugs-medical-devices/menstrual-tampons.html"><span> https://www.canada.ca/en/health-canada/services/drugs-medical-devices/menstrual-tampons.html</span></a></p></li><li><p><span>Health Canada, guidance document on labelling of medical devices including menstrual tampons:</span><a href="https://www.canada.ca/en/health-canada/services/drugs-health-products/medical-devices/application-information/guidance-documents/guidance-labelling-medical-devices-including-vitro-diagnostic-devices-appendices.html"><span> https://www.canada.ca/en/health-canada/services/drugs-health-products/medical-devices/application-information/guidance-documents/guidance-labelling-medical-devices-including-vitro-diagnostic-devices-appendices.html</span></a></p></li><li><p><span>Employment and Social Development Canada, requirements for menstrual products in federally regulated workplaces:</span><a href="https://www.canada.ca/en/employment-social-development/services/health-safety/reports/employer-requirements-workplace-menstrual-products.html"><span> https://www.canada.ca/en/employment-social-development/services/health-safety/reports/employer-requirements-workplace-menstrual-products.html</span></a></p></li><li><p><span>Health Canada, &#8220;Per- and polyfluoroalkyl substances (PFAS) and your health&#8221;:</span><a href="https://www.canada.ca/en/health-canada/services/chemicals-product-safety/per-polyfluoroalkyl-substances.html"><span> https://www.canada.ca/en/health-canada/services/chemicals-product-safety/per-polyfluoroalkyl-substances.html</span></a></p></li><li><p><span>KPMG Canada, &#8220;Canada moves to regulate PFAS as class of toxic substances under CEPA&#8221;:</span><a href="https://kpmg.com/ca/en/insights/2025/05/canada-moves-to-regulate-pfas.html"><span> https://kpmg.com/ca/en/insights/2025/05/canada-moves-to-regulate-pfas.html</span></a></p></li></ul><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div>]]></content:encoded></item><item><title><![CDATA[I bought a Garmin to track my swimming. Then I read the warning on the box.]]></title><description><![CDATA[As a grad gift to myself I bought the Garmin to track my swimming.]]></description><link>https://rightdose.substack.com/p/i-bought-a-garmin-to-track-my-swimming</link><guid isPermaLink="false">https://rightdose.substack.com/p/i-bought-a-garmin-to-track-my-swimming</guid><dc:creator><![CDATA[Angela Loureiro]]></dc:creator><pubDate>Tue, 04 Aug 2026 07:21:38 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!p__t!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><span>As a grad gift to myself I bought the Garmin to track my swimming. Excited to unbox it in the SAIL parking lot, I turned the box over in the car and read this:</span></p><p><span>&#8220;WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.&#8221;</span></p><p><span>I had just defended my Master&#8217;s thesis in Biomedical and Molecular Sciences. For a few minutes, sitting in the car, I was simply alarmed. Then I put on my scientist hat. And the story got considerably more interesting.</span></p><div><hr></div><h1><strong><span>What Prop 65 actually is</span></strong></h1><p><span>California&#8217;s Proposition 65 was passed in 1986 to ensure Californians are informed about exposures to chemicals known to cause cancer, birth defects, or reproductive harm. The state maintains a list of over 900 such substances.</span></p><p><span>A Prop 65 warning means one of two things: either a company has tested the product and found exposure exceeds California&#8217;s safe threshold, or, more commonly, the company knows a listed chemical is present somewhere and has chosen to label without evaluating whether exposure is actually meaningful. Garmin uses the second approach. Their public statement reads: &#8220;Garmin has chosen to provide a warning based on its knowledge about the presence of one or more listed chemicals without attempting to evaluate the level of exposure.&#8221;</span></p><p><span>The legal incentive runs entirely in one direction: companies that don&#8217;t label and are later found to contain listed chemicals can be sued; companies that label everything face no such liability. The result: Prop 65 warnings are now on coffee cups, hotel lobbies, wine bottles, and amusement parks. When a warning appears on everything, it stops functioning as a signal. It becomes wallpaper. This is exactly the wrong outcome for a law designed to inform people about real risks.</span></p><div><hr></div><h1><span>The thing underneath the warning</span></h1><p><span>In late 2024, researchers at the University of Notre Dame published a paper in Environmental Science &amp; Technology Letters testing 22 smartwatch and fitness tracker bands. Many are made from fluoroelastomer, a synthetic rubber prized for being resistant to sweat, skin oils, and lotions. Exactly the properties you want in a band you&#8217;re wearing to exercise.</span></p><p><span>Fluoroelastomers are a type of PFAS, per- and polyfluoroalkyl substances, known as &#8220;forever chemicals&#8221; because they do not degrade in the environment and accumulate in biological tissue. PFAS have been linked to hormone disruption, immune suppression, liver toxicity, and certain cancers.</span></p><p><span>Every fluoroelastomer band tested contained PFAS, with concentrations of PFHxA, perfluorohexanoic acid, above 16,000 parts per billion in some samples, compared to a median of around 200 parts per billion in cosmetics. The premium performance bands, marketed for sport and sweat-resistance, showed the highest fluorine levels. The expensive choice is the more contaminated choice. Premium pricing is not a proxy for ingredient safety, but it stings more when the product is explicitly sold as a wellness device.</span></p><div><hr></div><h1><strong><span>Why swimmers should pay particular attention</span></strong></h1><p><span>Most coverage assumes a standard wearables user: someone wearing a watch through a normal day. Swimmers are a different population, and this distinction has been almost entirely absent from the conversation.</span></p><p><span>When I wear my Garmin in the pool, the band is pressed against my wrist under pressure for the full session in chlorinated water. Chlorine at pool concentrations is a known skin irritant that disrupts the stratum corneum, the skin&#8217;s primary physical barrier, which is why swimmers often report dry, sensitive skin even when moisturising: the barrier is taking a chemical hit every session.</span></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!p__t!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!p__t!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png 424w, /__u/substackcdn.com/image/fetch/$s_!p__t!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png 848w, /__u/substackcdn.com/image/fetch/$s_!p__t!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png 1272w, /__u/substackcdn.com/image/fetch/$s_!p__t!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1d59c81-d2b1-4450-aa2b-7f0b82736d97_1280x649.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><p><span>Research published in 2024 by scientists at the University of Birmingham confirmed for the first time that PFAS can be absorbed through human skin &#8212; 15 of 17 compounds tested showed substantial dermal absorption. Shorter-chain PFAS like PFHxA, the specific compound found in watch bands, were absorbed more readily than longer-chain ones. The swimmer exposure scenario: a band with high PFAS concentrations, pressed against wrist skin that has been repeatedly barrier-disrupted by chlorine. This combination hasn&#8217;t been studied directly, but we know enough to recognise that swimmers are not the average user, and the average-user risk assessment probably doesn&#8217;t apply to us.</span></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/i-bought-a-garmin-to-track-my-swimming/comments&quot;,&quot;text&quot;:&quot;Leave a comment&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/i-bought-a-garmin-to-track-my-swimming/comments"><span>Leave a comment</span></a></p><div><hr></div><h1><strong><span>What you should actually do</span></strong></h1><p><span>Find out what your band is made of. Check the manufacturer&#8217;s website for the word &#8220;fluoroelastomer.&#8221; If your band is silicone, nylon, or fabric, you&#8217;re in a lower-risk category. If it&#8217;s fluoroelastomer, consider the swap, third-party silicone or nylon bands for most major platforms are inexpensive and widely available. You don&#8217;t have to replace the watch. Just the band.</span></p><p><span>I still wear my Garmin. I switched to a silicone band. The watch didn&#8217;t come with that recommendation, and the Prop 65 warning didn&#8217;t tell me what to do. I had to find a peer-reviewed paper and several hours of reading about dermal PFAS absorption to get information that probably should have been legible on the product itself.</span></p><p><span>The warning told me California was worried about something. The research told me what it was. The gap between those two things is where most consumers live, and where they&#8217;re left to manage alone.</span></p><p><span>If you wear a fitness tracker and don&#8217;t know what your band is made of, now is a good time to check.</span></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div>]]></content:encoded></item><item><title><![CDATA[You Cannot BioHack Your Way Out of Being Human]]></title><description><![CDATA[The most measured man alive still missed the signal.]]></description><link>https://rightdose.substack.com/p/you-cannot-biohack-your-way-out-of</link><guid isPermaLink="false">https://rightdose.substack.com/p/you-cannot-biohack-your-way-out-of</guid><dc:creator><![CDATA[Angela Loureiro]]></dc:creator><pubDate>Tue, 21 Jul 2026 07:01:17 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!bETM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><span>Bryan Johnson, the biohacker known for spending millions tracking and engineering nearly every input to his body, announced this month that he has been diagnosed with autoimmune gastritis (AIG). In his own words on X, his stomach is &#8220;eating itself.&#8221; The diagnosis followed 11 years of persistently low ferritin that iron supplementation never fixed, an eventual colonoscopy and endoscopy, and biopsies showing early atrophy of the stomach&#8217;s acid-producing lining. Blood work confirmed elevated anti-parietal cell antibodies, roughly five times the normal ceiling.</span></p><p><span>Johnson also has autoimmune hypothyroidism, diagnosed at 21. The two conditions are known to cluster, sometimes called thyrogastric syndrome. AIG has no approved cure. It&#8217;s managed, not solved, and it raises long-term risk for B12 deficiency, anemia, and stomach cancer.</span></p><p><span>The key takeaway: even the most measured human alive missed this for over a decade, because AIG hides. No standard panel screens for it directly. It shows up sideways, through a stubborn lab value nobody chased hard enough.</span></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!bETM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 424w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 848w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 1272w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!bETM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png" width="1318" height="603" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:603,&quot;width&quot;:1318,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1621354,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 424w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 848w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 1272w, /__u/substackcdn.com/image/fetch/$s_!bETM!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f90f2ec-c0a4-49ef-97b2-40bc45ea6ba7_1318x603.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><h2></h2><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><h2><strong><span>Through the longevity lens: Can over-optimization cause more harm than good?</span></strong></h2><ul><li><p><span>Autoimmune disease has an unclear cause, but genetics, environmental triggers, and chronic immune activation all likely play a role. Optimization culture tends to treat the body as a system you can fully instrument. AIG is a reminder that some processes stay invisible even under heavy tracking.</span></p></li><li><p><span>The irony worth sitting with: the same drive that builds a longevity protocol, constant vigilance, quantification, control, can itself become a stressor. Chronic stress dysregulates cortisol and gut motility, and there&#8217;s a documented link between stress physiology and gastrointestinal inflammation. Optimization is not automatically protective if the pursuit of it adds psychological load.</span></p></li><li><p>The nervous system is the gatekeeper here: real health and longevity depend on being able to turn the stress response off, not just on managing a lifestyle, sometimes self-imposed, that keeps triggering it.</p></li><li><p><span>This is where &#8220;balance&#8221; earns its place instead of being a wellness buzzword. A body is not one dial. Iron, thyroid hormone, immune tolerance, and gut lining health are separate systems that interact. Pushing hard on one axis (biomarkers, supplementation, discipline) can leave blind spots in another (immune regulation, stress load) that no single metric was built to catch.</span></p></li><li><p><span>None of this means tracking is useless. It means tracking has limits, and those limits show up exactly where a system stops being reducible to a number.</span></p></li></ul><h2><strong><span>Community spotlight</span></strong></h2><p><span>Dr. Rhea Kotecha&#8217;s Substack piece on this story is worth your time. She frames Johnson&#8217;s diagnosis not as proof that biohacking is absurd, but as proof that the immune system doesn&#8217;t respect the clinical categories doctors use, endocrinology here, gastroenterology there. She describes the body as constantly signaling, with the nervous system tuned to safety, the immune system to threat, and the gut to stress and inflammation. Her point lands: a low ferritin that won&#8217;t correct deserves real investigation, whether or not you&#8217;re tracking 100 biomarkers a year.</span></p><p><span>Read it here: https://drrheakotecha.substack.com/p/the-man-who-optimised-everything</span></p><p><span>To Johnson&#8217;s credit, that same relentless drive is bigger than him: if he manages to solve this autoimmune puzzle for himself, we may be getting closer to healing so many other autoimmune diseases too. But it has to go hand in hand with realizing the nervous system needs rest, too, and that safety, joy, and connection are what allow that.</span></p><h2><strong>Let&#8217;s Discuss&#8230;</strong></h2><p><strong>Forward this to someone deep in their own optimization era.</strong> And if you&#8217;ve ever chased a stubborn lab number that nobody could explain, hit reply. I&#8217;d like to hear it.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><h2><strong><span>Sources and links</span></strong></h2><ul><li><p><span>Bryan Johnson, original X post on his diagnosis:</span></p></li></ul><div class="twitter-embed" data-attrs="{&quot;url&quot;:&quot;https://x.com/bryan_johnson/status/2072069730517860385&quot;,&quot;full_text&quot;:&quot;Bad news #1: \n\nI have an autoimmune disease. My stomach is eating itself.\n\nBad news #2: \n\n2&#8211;5% of people have this, too. Likely more, because it hides.\n\nGood news: \n\nI'm going to try and solve it. Will share all.\n\nAs a kid, I ate sugar cereal, drank sugary soda, and gobbled down &quot;,&quot;username&quot;:&quot;bryan_johnson&quot;,&quot;name&quot;:&quot;Bryan Johnson&quot;,&quot;profile_image_url&quot;:&quot;https://pbs.substack.com/profile_images/1888004001872101378/jVNJQ-iu_normal.jpg&quot;,&quot;date&quot;:&quot;2026-06-30T21:28:15.000Z&quot;,&quot;photos&quot;:[{&quot;img_url&quot;:&quot;https://pbs.substack.com/media/HMF4P5KbkAAvn5C.jpg&quot;,&quot;link_url&quot;:&quot;https://t.co/EbJ8a916uS&quot;}],&quot;quoted_tweet&quot;:{},&quot;reply_count&quot;:2867,&quot;retweet_count&quot;:839,&quot;like_count&quot;:17052,&quot;impression_count&quot;:9570397,&quot;expanded_url&quot;:null,&quot;video_url&quot;:null,&quot;video_preview_media_key&quot;:null,&quot;belowTheFold&quot;:true}" data-component-name="Twitter2ToDOM"></div><ul><li><p><span>STAT News, &#8220;Why longevity entrepreneur Bryan Johnson&#8217;s chronic disease is notoriously difficult to diagnose&#8221;: https://www.statnews.com/2026/07/08/bryan-johnson-autoimmune-gastritis-diagnosis-explained/</span></p></li><li><p><span>Northeastern Global News, &#8220;How did Bryan Johnson end up with an autoimmune disease?&#8221;: https://news.northeastern.edu/2026/07/06/bryan-johnson-autoimmune-gastritis/</span></p></li><li><p><span>Yahoo Health, expert breakdown of AIG mechanisms and prevalence: https://health.yahoo.com/conditions/article/bryan-johnson-the-man-who-wants-to-live-forever-was-just-diagnosed-with-this-incurable-stomach-condition-233559431.html</span></p></li><li><p><span>Dr. Rhea Kotecha, &#8220;The Man Who Optimised Everything and Still Got Autoimmunity&#8221;: https://drrheakotecha.substack.com/p/the-man-who-optimised-everything</span></p></li></ul>]]></content:encoded></item><item><title><![CDATA[I bought a litre of milk in a Pepsi bottle in Poland. In Canada, the same thing costs $12 and comes with a logo.]]></title><description><![CDATA[I want to set two different scenes.]]></description><link>https://rightdose.substack.com/p/i-bought-a-litre-of-milk-in-a-pepsi</link><guid isPermaLink="false">https://rightdose.substack.com/p/i-bought-a-litre-of-milk-in-a-pepsi</guid><dc:creator><![CDATA[Angela Loureiro]]></dc:creator><pubDate>Tue, 07 Jul 2026 06:11:12 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!cb_4!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>I want to set two different scenes.</p><p>The first: a village in Northeastern Poland, early enough that the fog was still sitting on the fields, and a slight sense of uneasiness being only 20 km from the Belrusian border. I walked to a woman I had seen every week at the local rynek, the outdoor market, since I&#8217;d moved there seven months earlier. She sold milk, cheese, and eggs from a folding table with no sign, no logo, no business card. She sat on an upside down milk crate. The milk came in a reused two-litre Pepsi bottle, rinsed clean. It cost the equivalent of about a dollar. I paid, said dzi&#281;kuj&#281;, and walked home.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!cb_4!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 424w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 848w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!cb_4!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png" width="1072" height="782" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:782,&quot;width&quot;:1072,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2007625,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/205587082?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8087e2b2-11a0-42af-8408-160ad93cf015_1195x896.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 424w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 848w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cb_4!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68614544-a39c-4d55-aeb6-2b3634a746fb_1072x782.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>The second: a Saturday morning at one of Kingston, Ontario&#8217;s farmers markets. I&#8217;m in my early 20s, walking between the stalls with my best friend Kaitlin, who lives up the street from me in student housing as well. Beautiful produce arranged in geometric piles. Wooden signs with hand-painted lettering. Branded tote bags. A stand selling raw honey with a small-batch logo and a paragraph on the label about the beekeeper&#8217;s philosophy. The honey is $18 a jar.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!EvnH!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 424w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 848w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 1272w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!EvnH!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png" width="1123" height="812" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:812,&quot;width&quot;:1123,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2073342,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" title="" srcset="/__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 424w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 848w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 1272w, /__u/substackcdn.com/image/fetch/$s_!EvnH!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6f54a76d-3ef1-409b-97b2-3229d170be66_1123x812.png 1456w" sizes="100vw"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>I have been thinking about the gap between those two mornings for years.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:&quot;button-wrapper&quot;}" data-component-name="ButtonCreateButton"><a class="button primary button-wrapper" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2><strong>The thing we&#8217;re really buying</strong></h2><p>In Kingston, where I did university; Vancouver, where I grew up; and in its American cousin, Los Angeles, where a smoothie from Erewhon can run $22 and the store&#8217;s branded tote costs $140, &#8220;organic&#8221; has become something that operates simultaneously as a food category, a health decision, and a class signal. Posting your ceremonial-grade matcha setup and organic strawberry haul from a high-end grocery store lets people perform status while pretending they&#8217;re just making healthy choices. It disguises luxury as virtue. The product is partly the food and partly the identity it confers on the person buying it.</p><p>This is not cynical, or not entirely. The desire to know where your food comes from is legitimate. The desire to eat food that hasn&#8217;t been treated with a chemical you&#8217;d rather avoid is legitimate. The desire to support smaller producers and more careful farming is legitimate. These are real concerns, and the premium market that has developed around them does, in some cases, deliver on them.</p><p>But something strange has happened on the way from &#8220;I want to know what&#8217;s in my food&#8221; to &#8220;$18 honey with a philosophy paragraph.&#8221; The branding has become the trust mechanism. The aesthetic has become the proxy for quality. The certification logo and the kraft paper label and the hand-lettered sign have become the signals that communicate: this is the good food, the safe food, the food of people who care. And because those signals cost money to produce and display, they have driven the price of conscious eating into territory that functions, whatever the intention, as a class barrier.</p><p>What unsettled me about the Polish milk in the Pepsi bottle wasn&#8217;t the Pepsi bottle, even though it was plastic holding a warm liquid. It was the realisation that I trusted that milk completely, more than I trusted most things I bought in Canada with labels that existed specifically to generate trust and the container had nothing to do with it.</p><div><hr></div><h2><strong>What trust looked like before it needed a logo</strong></h2><p>The woman who sold me that milk didn&#8217;t need to signal trustworthiness. She <em>was</em> trustworthy, in the most direct sense available: I had watched her animals and knew the village she lived in. I had been buying from her for months. My neighbour bought from her. Her neighbour bought from her. The entire supply chain was visible and relational. I didn&#8217;t need a certification body to stand between us and vouch for the product, because no intermediary had entered the picture.</p><p>Market squares, rynki, have always been an integral part of Polish cities&#8217; structure, playing an important role in how people live. They are real centres where people meet, chat, and buy and sell what they need. The culture in Poland still involves shopping locally for food multiple times a week, and market tables are set up for anyone to use; if you have surplus produce to sell, you lay it out and offer it for sale. There is no company. There are no signs and no sign ups required to sell your products. There is just the thing and the person who made it and the question of whether you want it.</p><p>The pricing reflects this. At Polish ryneks, fresh produce is cheaper than the supermarket, not more expensive. You can negotiate if you&#8217;re a regular. Farmers who sell direct don&#8217;t need to factor in a distributor&#8217;s margin, a grocery store&#8217;s shelf fee, a marketing budget, or the cost of a sustainable packaging designer. They need to cover what it costs to grow and transport the thing and enough left over to make it worth their time. That is the whole economic equation. You can see it clearly because no other costs are hidden in the price.</p><p>In Vancouver, the same logic should apply to the farmers market. In some stalls, it does. But the market also serves a social function that is different from the rynek. In many neighbourhoods, it is a destination for a particular demographic, and the prices reflect that social function as much as the food costs. The $18 honey isn&#8217;t just paying for honey. It&#8217;s paying for the brand story, the packaging, the table at the market, and the particular kind of reassurance that the brand story is designed to provide. None of those things are the honey.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:&quot;button-wrapper&quot;}" data-component-name="ButtonCreateButton"><a class="button primary button-wrapper" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2><strong>The regulatory floor no one talks about</strong></h2><p>Here is the part that I think deserves more attention than it gets in wellness conversations.</p><p>Poland is a member of the European Union. This means that every piece of food sold in Poland must comply with EU food safety standards. These standards are not the same as Canadian or American standards. On several key measures, they are meaningfully stricter.</p><p>The clearest example is pesticide maximum residue limits, or MRLs, which is the legally permitted concentration of pesticide residue that can remain on food. The EU applies what regulators call the &#8220;precautionary principle,&#8221; which means that when there is uncertainty about a chemical&#8217;s safety, the default is restriction rather than permission. The results are significant. In a head-to-head comparison between Canada and the EU, Canada has a weaker MRL in 21 cases and a stronger one in only five cases. For some specific pesticides, Canada&#8217;s permitted limit is dramatically higher than Europe&#8217;s.</p><p>What this means in practice is that the unlabelled tomato at a Polish supermarket, the one with no organic certification, no premium price, no branding at all may contain less pesticide residue than the certified organic produce at a Canadian farmers market, because the baseline rules governing all conventional food in the EU start from a more protective position. The certification in Canada is doing regulatory work that doesn&#8217;t need to be done in Poland, because the floor is higher to begin with.</p><p>This is the fact that the wellness industry&#8217;s framing around &#8220;organic&#8221; almost never engages with. The conversation is structured as: conventional (bad) versus organic (good). But the relevant question is actually: organic compared to what baseline? In a jurisdiction with strict default food standards, &#8220;conventional&#8221; covers a lot of ground that &#8220;organic&#8221; in a laxer jurisdiction is trying to reach. The label is only as meaningful as the gap it&#8217;s trying to bridge.</p><p>There is an important caveat here. I am not arguing that EU food standards are perfect, or that certification is meaningless. The EU&#8217;s own monitoring data shows that a small percentage of food sold in the EU still exceeds MRL thresholds. Imported produce, in particular, can have compliance issues when the exporting country operates under different rules. And the relational trust that exists at a village market where you know the farmer personally provides a form of accountability that neither EU certification nor Canadian organic labelling can fully replicate. What I am arguing is that the framing of &#8220;organic = safe, non-organic = risky&#8221; is geographically relative and often goes unexamined in a way that does consumers a disservice.</p><div><hr></div><h2><strong>What you can actually take from this</strong></h2><p>I want to be careful not to romanticise what I experienced in Poland. Rural food culture there has its own challenges, including access to variety, consistency of supply, the physical effort involved in sourcing food this way. Not everyone can live near a rynek. Not everyone has seven months to become a regular and build the relationships that make relational trust possible.</p><p>The closest equivalent available in most Canadian and American cities is CSA, or community-supported agriculture, where you pay a farm directly for a seasonal share and often have the option to visit. The relationship is abbreviated compared to a village market, but the supply chain is short and visible. You can ask questions and get answers from the person who grew the food, not from a customer service email address.</p><p>At a farmers market, the practice that maps most closely to the rynek is also the simplest: ask. Where is this from? How was it grown? What did you use on it? A farmer who is selling you something they grew will almost always answer. A reseller or distributor operating behind a farmers-market aesthetic often cannot. The answer to the question, or the absence of one, tells you more than the label does.</p><p>And the most useful reframe I can offer for navigating Canadian organic labelling: think of certification not as a guarantee of quality but as a floor. A certified organic product has met a documented standard. That standard is meaningful. But it is not the ceiling of what food can be &#8212; it is the minimum the label requires. The Pepsi bottle of milk was not certified to anything. It was also, as far as I could tell, produced by one woman with goats and a clean bucket, which is about as minimal a supply chain as food gets.</p><p>The goal isn&#8217;t to import Polish village life into Kingston or Vancouver. The goal is to look for the thing that certification is trying to replicate: knowledge of where your food actually came from, and some reasonable basis for trusting what&#8217;s in it. Find it wherever you can, by whatever means are available. Sometimes that means a certification logo. Sometimes it means a conversation at a market stall. Sometimes it means knowing that the regulatory baseline in the place you&#8217;re buying your food sets a high enough floor that the question answers itself.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p>This is, not coincidentally, what RightShop is trying to do for consumer products more broadly &#8212; strip the packaging out of the trust equation and go directly to what&#8217;s inside. The logo doesn&#8217;t tell you whether the ingredient list is clean. The price doesn&#8217;t tell you whether the formulation is safe. The design of the label is not the same thing as the quality of what&#8217;s behind it. We&#8217;re trying to build the infrastructure that lets you ask the question the Pepsi bottle forced me to answer through other means.</p><div><hr></div><p><em>If you grew up with a version of the Pepsi bottle story (or a grandparent&#8217;s garden, a neighbour&#8217;s eggs, food that came with a face and not a logo), I&#8217;d genuinely love to hear it.</em></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/i-bought-a-litre-of-milk-in-a-pepsi/comments&quot;,&quot;text&quot;:&quot;Leave a comment&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/i-bought-a-litre-of-milk-in-a-pepsi/comments"><span>Leave a comment</span></a></p>]]></content:encoded></item><item><title><![CDATA[The Science of Aesthetics — Part 3: The Protocols ]]></title><description><![CDATA[Light, Movement & the Aesthetics Stack]]></description><link>https://rightdose.substack.com/p/the-science-of-aesthetics-part-3</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-science-of-aesthetics-part-3</guid><dc:creator><![CDATA[Michelle Martin]]></dc:creator><pubDate>Tue, 23 Jun 2026 11:01:32 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!AGam!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><em>&#8220;Biohacking is just paying attention. The tools are ancient. The data is new.&#8221;</em></p><div><hr></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!AGam!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 424w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 848w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 1272w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!AGam!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png" width="424" height="441.8902953586498" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 424w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 848w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 1272w, /__u/substackcdn.com/image/fetch/$s_!AGam!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F913fbae8-a2d6-4a19-afc1-ddc59bba832e_474x494.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p>Parts 1 and 2 established the biology: aging is damage accumulation, and most of that damage routes through hormonal disruption, gut inflammation, poor sleep, and glycemic stress.</p><p>Part 3 is where we get practical. These are the interventions with the strongest functional medicine evidence &#8212; ranked by cost-to-impact ratio, because the most powerful tools in this stack cost almost nothing.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h3>1. Morning Light: The Highest-ROI Free Intervention</h3><p>Dr. Andrew Huberman (Stanford Neuroscience) has made this accessible to millions, but the mechanism deserves stating clearly:</p><p><strong>Within 30&#8211;60 minutes of waking, viewing outdoor sunlight without sunglasses</strong> sets the master circadian clock via the suprachiasmatic nucleus. This single input:</p><ul><li><p>Anchors your cortisol peak to the morning (where it belongs, not the afternoon)</p></li><li><p>Triggers the serotonin &#8594; melatonin cascade that governs mood <em>and</em> sleep onset 14&#8211;16 hours later</p></li><li><p>Regulates skin cell circadian clocks, which govern overnight repair cycles (covered in Part 2)</p></li><li><p>Supports Vitamin D synthesis, which modulates hundreds of gene expression pathways including those governing skin barrier function</p></li></ul><p>In Lisbon, this is not a sacrifice. It&#8217;s a morning espresso on the terrace, a walk to the <em>padaria</em>, or five minutes on the balcony. <strong>Ten minutes of outdoor morning light is worth more than almost any supplement on this list.</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VFW6!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 424w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 848w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!VFW6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png" width="1072" height="853" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:853,&quot;width&quot;:1072,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1737587,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/198595518?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06544c8f-0b4b-4bf5-99e4-d30be1c9c223_1216x874.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 424w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 848w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VFW6!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74be131f-adfc-470b-9e6d-52a6125ba780_1072x853.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h3>2. Zone 2 Cardio &amp; Resistance Training: Hormesis as a Beauty Protocol</h3><p><strong>Hormesis:</strong> the principle that low-dose stress creates adaptive resilience is at the heart of exercise&#8217;s anti-aging effects. But not all exercise is equal for aesthetics.</p><p><strong>Zone 2 cardio</strong> (conversational pace; roughly 60&#8211;70% max heart rate) is where mitochondrial biogenesis peaks. More mitochondria per cell = better energy metabolism = better skin cell turnover and collagen synthesis. Target: <strong>150&#8211;180 minutes per week.</strong> Lisbon&#8217;s hills deliver this almost accidentally.</p><p><strong>Resistance training</strong> (2&#8211;3x per week) preserves lean muscle mass, which:</p><ul><li><p>Maintains insulin sensitivity (the anti-glycation mechanism from Part 2)</p></li><li><p>Supports testosterone and DHEA, both of which decline with age and both linked to skin thickness</p></li><li><p>Triggers myokines: muscle-secreted proteins with documented anti-inflammatory effects systemwide</p></li></ul><p>Per Dr. Stacy Sims&#8217;s research on women&#8217;s exercise physiology: <strong>women over 35 should bias toward heavier resistance work</strong>, not chronic cardio, to counter the hormonal shifts of perimenopause. Moderate-to-high intensity resistance training preserves bone density, skin collagen, and metabolic rate in ways steady-state cardio does not.</p><div><hr></div><h3>3. Red Light Therapy: The Science and the Hype</h3><p><strong>Photobiomodulation (PBM)</strong> using 630&#8211;850nm wavelengths of red and near-infrared light has solid clinical evidence for:</p><ul><li><p>Stimulating fibroblast activity and collagen production</p></li><li><p>Reducing inflammation via mitochondrial cytochrome c oxidase activation</p></li><li><p>Accelerating wound healing and tissue repair</p></li></ul><p>What the research supports: <strong>consistent, close-range exposure (10&#8211;20cm) for 10&#8211;20 minutes, 4&#8211;5x per week</strong> to targeted areas, over a minimum 8&#8211;12 week period.</p><p>What the hype overstates: a single panel will not replace sleep, exercise, or diet. It is a useful layer on top of a functional foundation, not a shortcut around one.</p><p>Worth it if: you&#8217;re already sleeping well, eating well, and training consistently. Not worth it as a first purchase if you&#8217;re not.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-science-of-aesthetics-part-3?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-science-of-aesthetics-part-3?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h3>4. The Supplement Hierarchy</h3><p>Ranked by evidence quality and clinical relevance for women 35+, from foundational to advanced:</p><p><strong>Tier 1: High evidence, broad benefit:</strong></p><ul><li><p><strong>Magnesium glycinate</strong> (300&#8211;400mg, evening): sleep architecture, insulin sensitivity, inflammation</p></li><li><p><strong>Omega-3s / EPA+DHA</strong> (2&#8211;3g/day): skin lipid barrier, anti-inflammatory, cardiovascular</p></li><li><p><strong>Vitamin D3 + K2</strong>: immune regulation, bone density, gene expression; most Europeans are deficient despite sun access in winter months</p></li></ul><p><strong>Tier 2: Good evidence, more targeted:</strong></p><ul><li><p><strong>Collagen peptides</strong> (10&#8211;15g/day): stimulates endogenous collagen synthesis; most effective with Vitamin C</p></li><li><p><strong>Creatine monohydrate</strong> (3&#8211;5g/day): now supported for cognitive function and muscle preservation in women over 35, not just athletes</p></li><li><p><strong>Spermidine:</strong> autophagy activator with emerging longevity data; found in wheat germ, aged cheese, mushrooms</p></li></ul><p><strong>Tier 3: Emerging / precision:</strong></p><ul><li><p><strong>NMN or NR</strong> (NAD+ precursors): supported by David Sinclair&#8217;s work on NAD+ depletion; promising but dose/timing still being refined in humans</p></li><li><p><strong>Urolithin A</strong> (MitoPure, Timeline Nutrition): mitophagy activator; among the most exciting mitochondrial interventions in current clinical research</p></li><li><p><strong>Peptides (GHK-Cu, BPC-157):</strong> strong preclinical data, limited large-scale human trials; proceed with sourcing caution</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!4hfx!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 424w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 848w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 1272w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!4hfx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png" width="1408" height="680" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:680,&quot;width&quot;:1408,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2347944,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 424w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 848w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 1272w, /__u/substackcdn.com/image/fetch/$s_!4hfx!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a8a15a0-5b41-462f-9545-bdfae4b9624e_1408x680.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h3>5. Nervous System Aesthetics: Vagal Tone &amp; the Face</h3><p>This is perhaps the most underrated piece of the entire framework.</p><p>Your <strong>vagal tone</strong>, the activity level of the vagus nerve, which regulates the parasympathetic &#8220;rest and repair&#8221; state, directly influences facial appearance:</p><ul><li><p>High vagal tone = lower baseline cortisol, better sleep, reduced systemic inflammation, improved skin microcirculation</p></li><li><p>Low vagal tone = chronic sympathetic activation, cortisol dysregulation, accelerated aging</p></li></ul><p>Evidence-supported vagal tone practices:</p><ul><li><p><strong>Physiological sigh</strong> (double inhale, slow extended exhale): fastest-acting acute stress reset</p></li><li><p><strong>Cold exposure</strong> (cold shower finishing 30&#8211;60 seconds, or face cold-water submersion) stimulates vagal activation and reduces inflammatory cytokines</p></li><li><p><strong>Breathwork</strong> (4-7-8, box breathing, or coherent breathing at ~5.5 breaths/minute)</p></li><li><p><strong>Social bonding:</strong> oxytocin released through connection directly upregulates vagal tone; this is biological, not soft</p></li></ul><div><hr></div><h3>The Honest Summary</h3><p>The aesthetics protocol, in order of impact:</p><ol><li><p><strong>Morning light, daily</strong></p></li><li><p><strong>7&#8211;8 hours of sleep, consistent wake time</strong></p></li><li><p><strong>Resistance training 2&#8211;3x/week + zone 2 walking</strong></p></li><li><p><strong>Anti-glycemic eating with an early eating cutoff</strong></p></li><li><p><strong>Gut-supportive nutrition (fiber, fermented foods, omega-3s)</strong></p></li><li><p><strong>Nervous system regulation practice, daily</strong></p></li><li><p><strong>Foundational supplements: Mg, D3, omega-3s</strong></p></li><li><p><strong>Advanced supplements layered on top</strong></p></li><li><p><strong>Red light therapy as an amplifier</strong></p></li></ol><p>Most of this stack is free, available in any city, and substantially enabled by living a slower, sun-drenched, olive-oil-soaked life in Portugal.</p><p>The rest, knowing what to buy, where to source it in Europe, and what the evidence actually says about quality, is exactly what we&#8217;re building.</p><div><hr></div><p style="text-align: center;"><em>RightShop.ai is in private beta, launching soon. We&#8217;re curating an evidence-based product guide for the European market &#8212; no markup arbitrage, no wellness noise. Just what works, sourced smart.</em></p><p style="text-align: center;"><strong>&#8594; Join the waitlist at <a href="http://rightshop.ai">RightShop.ai</a></strong></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p><strong>References:</strong></p><ul><li><p>Huberman, A. (2021&#8211;2024). Huberman Lab Podcast &#8212; Episodes on Light, Cortisol, and Circadian Biology.</p></li><li><p>Sims, S. (2022). <em>Next Level: Your Guide to Kicking Ass, Feeling Great, and Crushing Goals Through Menopause and Beyond.</em></p></li><li><p>Sinclair, D. &amp; LaPlante, M.D. (2019). <em>Lifespan.</em> Atria Books.</p></li><li><p>Wunsch, A. &amp; Matuschka, K. (2014). A controlled trial of photobiomodulation. <em>Photomedicine and Laser Surgery.</em></p></li><li><p>Pietrocola, F. et al. (2015). Spermidine induces autophagy by inhibiting acetyltransferases. <em>Cell Death &amp; Differentiation.</em></p></li><li><p>Sharma, A. et al. (2023). Creatine supplementation in women. <em>Journal of the International Society of Sports Nutrition.</em></p></li></ul>]]></content:encoded></item><item><title><![CDATA[The Science of Aesthetics — Part 2: The Inputs]]></title><description><![CDATA[Food, Sleep & the Gut-Skin Axis]]></description><link>https://rightdose.substack.com/p/the-science-of-aesthetics-part-2</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-science-of-aesthetics-part-2</guid><dc:creator><![CDATA[Michelle Martin]]></dc:creator><pubDate>Tue, 09 Jun 2026 11:01:21 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!hDG1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><em>&#8220;Your face is your microbiome&#8217;s r&#233;sum&#233;.&#8221;</em> &#8212; Dr. Whitney Bowe, dermatologist and gut-skin researcher</p><div><hr></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!hDG1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 424w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 848w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 1272w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!hDG1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png" width="1312" height="752" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/dab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:752,&quot;width&quot;:1312,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2079207,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 424w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 848w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 1272w, /__u/substackcdn.com/image/fetch/$s_!hDG1!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdab1b276-005d-4a72-9318-0e7f7f6c64d9_1312x752.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p>Nobody wants to hear that the secret to better skin is going to bed at 10pm and eating more fiber.</p><p>And yet.</p><p>Functional medicine&#8217;s most consistent finding &#8212; across the work of Alessio Fasano at Harvard, Valter Longo at USC, and Whitney Bowe&#8217;s clinical dermatology research &#8212; is that <strong>the most powerful aesthetic interventions are dietary and circadian, not topical.</strong></p><p>Here&#8217;s the mechanism behind what most people are still treating as wellness folklore.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h3>The Gut-Skin Axis: Your Face as Diagnostic Tool</h3><p>The gut-skin axis is not a metaphor. It&#8217;s a documented bidirectional signaling pathway between your gastrointestinal tract and your skin.</p><p>When intestinal permeability increases, what researchers including Dr. Alessio Fasano call <strong>intestinal hyperpermeability</strong> (colloquially, &#8220;leaky gut&#8221;), bacterial fragments called lipopolysaccharides (LPS) enter the bloodstream. This triggers systemic low-grade inflammation that shows up visibly as:</p><ul><li><p>Accelerated collagen breakdown</p></li><li><p>Increased sebum production and acne</p></li><li><p>Rosacea and reactive skin</p></li><li><p>Dullness and uneven tone</p></li></ul><p>Key disruptors of gut barrier integrity:</p><ul><li><p><strong>Chronic stress</strong> (cortisol directly loosens tight junctions in the gut lining)</p></li><li><p><strong>Ultra-processed foods and excess sugar</strong></p></li><li><p><strong>Alcohol </strong>&#8212; even moderate, regular consumption</p></li><li><p><strong>Antibiotic overuse</strong> without probiotic restoration</p></li><li><p><strong>Sleep deprivation</strong> which loops directly back to skin</p></li></ul><p>The practical implication: treating skin from the outside while ignoring gut inflammation is like painting over rust.</p><div><hr></div><h3>Glycation: The Collagen Killer in Your &#8220;Healthy&#8221; Diet</h3><p>One of the most underappreciated drivers of skin aging is <strong>glycation</strong>, the process by which excess blood glucose binds to collagen and elastin fibers, creating Advanced Glycation End-products (AGEs).</p><p>AGEs make collagen stiff, brittle, and discolored. They&#8217;re also pro-inflammatory. And they accumulate permanently so there is no topical fix.</p><p>Glycation accelerates with:</p><ul><li><p>High-glycemic foods (white bread, rice, fruit juice, sweetened yogurt)</p></li><li><p>Eating large carbohydrate loads without fat or fiber to buffer the glucose spike</p></li><li><p>Alcohol (particularly spirits and beer)</p></li><li><p>Cooking methods: <strong>grilling and frying</strong> produce dietary AGEs; steaming and poaching do not</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!WOAn!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!WOAn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png" width="1376" height="768" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:768,&quot;width&quot;:1376,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:2270250,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!WOAn!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F38ed2fea-3e47-4147-b209-ada33bf7b95a_1376x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>The Mediterranean diet, abundant here in Portugal, is structurally anti-glycation: high in fiber, olive oil, fish, and polyphenols that slow glucose absorption and reduce oxidative stress. It is not a coincidence that Portugal consistently ranks among Europe&#8217;s lowest countries for metabolic disease.</p><div><hr></div><h3>Circadian Eating: The 7pm Protocol</h3><p>Your skin doesn&#8217;t repair uniformly across 24 hours. It operates on a <strong>circadian clock</strong>, with the majority of cellular repair, collagen synthesis, and stem cell renewal happening between roughly <strong>10pm and 2am</strong>, provided you&#8217;re not still digesting.</p><p>The research from Dr. Satchin Panda (Salk Institute) on time-restricted eating is directly applicable here:</p><ul><li><p>Finishing eating by <strong>7&#8211;8pm</strong> allows insulin and blood glucose to normalize before repair cycles begin</p></li><li><p>Late-night eating suppresses melatonin signaling, which governs not just sleep but cellular antioxidant defense</p></li><li><p>A <strong>12&#8211;14 hour overnight fast</strong> (eating window of 8&#8211;10 hours) correlates with improved skin barrier function and reduced inflammatory markers</p></li></ul><p>This is one of the highest-leverage, zero-cost interventions available. In Portugal, it&#8217;s almost cultural: the late lunch is the main meal; dinner is lighter and earlier than in North America.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h3>Sleep: The Original Biohack</h3><p>Sleep is not passive. It is the most anabolic, reparative state your body enters.</p><p>During deep sleep (slow-wave sleep):</p><ul><li><p><strong>Human Growth Hormone (HGH)</strong> is released: the primary driver of cellular repair and collagen regeneration</p></li><li><p><strong>Cortisol drops</strong> to its daily low, allowing inflammation to resolve</p></li><li><p><strong>The glymphatic system activates:</strong> your brain&#8217;s overnight waste-clearance mechanism, also associated with reduced inflammatory load systemically</p></li></ul><p>One week of sleeping less than 6 hours measurably increases skin barrier dysfunction, transepidermal water loss, and perceived skin aging, per research published in <em>Clinical and Experimental Dermatology.</em></p><p>As a solo parent to a two-year-old, I have made peace with the fact that I cannot always optimize sleep duration. What I can optimize is <strong>sleep architecture:</strong> getting the right stages even in a shorter window, through:</p><ul><li><p>No screens 60 minutes before bed (blue light suppresses melatonin)</p></li><li><p>Keeping the room cool (18&#8211;19&#176;C is the evidence-based target)</p></li><li><p>A consistent wake time, which anchors the circadian rhythm even when bedtime varies</p></li><li><p>Magnesium glycinate (300&#8211;400mg) before sleep, which supports deep sleep stages</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!91Us!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 424w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 848w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 1272w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!91Us!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png" width="1327" height="738" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:738,&quot;width&quot;:1327,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1718168,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 424w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 848w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 1272w, /__u/substackcdn.com/image/fetch/$s_!91Us!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b67e6a0-475f-4cf2-8a6e-8fbdf88ad53e_1327x738.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h3>The Solo Mom Variable</h3><p>Here is the honest part: chronic low-grade stress is biologically real, and solo parenting is one of its most reliable sources.</p><p>The cortisol pattern in high-demand caregiving (blunted morning spike, sustained afternoon elevation, difficulty dropping at night) is directly associated with accelerated skin aging, gut permeability, and impaired sleep architecture.</p><p>The answer is not to eliminate stress (impossible). It is to <strong>interrupt the cortisol pattern</strong> deliberately, multiple times per day. Research supports:</p><ul><li><p>10-minute outdoor walks (sunlight + movement resets cortisol rhythm)</p></li><li><p>Social connection (oxytocin directly antagonizes cortisol)</p></li></ul><p>Brief physiological sighs, like double inhale through the nose and slow exhale through the mouth, activate the parasympathetic nervous system faster than any supplement. </p><div><hr></div><h3>Coming Up</h3><p><strong>Part 3</strong> is where the protocols live: morning light, zone 2 training, red light therapy, and the supplement hierarchy &#8212; what&#8217;s worth spending on and what&#8217;s not.</p><div><hr></div><p style="text-align: center;"><em>RightShop.ai is currently in private beta &#8212; curating evidence-based wellness products available across Europe, without the North American markup. Built for the kind of person who reads the research before buying anything.</em></p><p style="text-align: center;"><strong>&#8594; Join the waitlist at <a href="http://rightshop.ai">RightShop.ai</a></strong></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>References:</strong></p><ul><li><p>Fasano, A. (2012). Leaky gut and autoimmune diseases. <em>Clinical Reviews in Allergy &amp; Immunology.</em></p></li><li><p>Longo, V. &amp; Panda, S. (2016). Fasting, circadian rhythms, and time-restricted feeding. <em>Cell Metabolism.</em></p></li><li><p>Bowe, W. &amp; Logan, A.C. (2011). Acne vulgaris, probiotics and the gut-brain-skin axis. <em>Gut Pathogens.</em></p></li><li><p>Oyetakin-White, P. et al. (2015). Does poor sleep quality affect skin aging? <em>Clinical and Experimental Dermatology.</em></p></li><li><p>Panda, S. (2018). <em>The Circadian Code.</em> Rodale Books.</p></li></ul><div><hr></div>]]></content:encoded></item><item><title><![CDATA[The Science of Aesthetics — Part 1: The Foundation]]></title><description><![CDATA[Skin, Hormones & the Cellular Clock]]></description><link>https://rightdose.substack.com/p/the-science-of-aesthetics-part-1</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-science-of-aesthetics-part-1</guid><dc:creator><![CDATA[Michelle Martin]]></dc:creator><pubDate>Tue, 26 May 2026 11:03:43 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!glHA!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><em>&#8220;You don&#8217;t age. You accumulate damage, and damage is reversible.&#8221;</em> &#8212; Dr. David Sinclair, Harvard Medical School</p><div><hr></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!glHA!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!glHA!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg" width="628" height="500.17699115044246" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:720,&quot;width&quot;:904,&quot;resizeWidth&quot;:628,&quot;bytes&quot;:142517,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!glHA!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9168e440-5822-4b98-8d6f-d7c91a2cb6b2_904x720.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>I turned 41 in Portugal. No cake, just a long walk along the Tagus, a glass of Vinho Verde, and the quiet realization that I felt <em>better</em> than I did at 31.</p><p>That doesn&#8217;t happen by accident. It happens by design or, more accurately, by biology you finally stop ignoring.</p><p>This three-part series is my attempt to bring the science of functional medicine into the everyday conversation about how we look, how we age, and why the two are far more connected than most skincare marketing will ever tell you.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h3>What Is Actually Happening When You &#8220;Age&#8221;?</h3><p>In 2013, researchers Carlos L&#243;pez-Ot&#237;n and David Sinclair identified what they called the <strong>Hallmarks of Aging</strong>, a framework now foundational to longevity medicine. The simplified version:</p><ul><li><p><strong>Cellular senescence: </strong>&#8220;zombie cells&#8221; that stop dividing but refuse to die, triggering inflammation</p></li><li><p><strong>Mitochondrial dysfunction:</strong> your cellular energy factories losing efficiency over time</p></li><li><p><strong>NAD+ depletion:</strong> a critical coenzyme that governs DNA repair drops by ~50% between ages 20&#8211;50</p></li><li><p><strong>Epigenetic noise: </strong>your gene expression patterns drift, accelerating biological aging</p></li></ul><p>What does this have to do with your skin? Everything. These aren&#8217;t abstract processes. They show up as collagen loss, uneven tone, puffiness, and that low-grade inflammation that no serum can fix from the outside.</p><div><hr></div><h3>The Hormonal Triangle: Estrogen, Cortisol &amp; Collagen</h3><p>Skin is a hormonal organ. The three players that matter most aesthetically:</p><ul><li><p><strong>Estrogen</strong> stimulates collagen production and maintains skin moisture. Levels begin declining in your late 30s, even before perimenopause officially begins.</p></li><li><p><strong>Cortisol</strong> (your primary stress hormone) directly degrades collagen and suppresses skin repair. Chronic stress ages skin measurably.</p></li><li><p><strong>Collagen itself,</strong> type I and III, declines at roughly 1% per year after age 25, accelerating significantly under hormonal and lifestyle stress.</p></li></ul><p>The clinical implication: managing stress <em>is</em> a skincare protocol. Not a metaphor &#8212; literal biochemistry.</p><div><hr></div><h3>HRV: The Biometric Your Mirror Can&#8217;t Show You</h3><p><strong>Heart Rate Variability (HRV)</strong>, i.e. the variation in time between your heartbeats, is one of the most sensitive readouts of nervous system health. Tracked via wearables like Oura or Garmin, it reflects how recovered and regulated your body is.</p><p>Generally, low HRV correlates with elevated cortisol, systemic inflammation, and accelerated skin aging. High HRV? The opposite. What matters most, though, is HRV relative to your own baseline, not someone else&#8217;s numbers. HRV is highly individual, so the real signal comes from tracking your personal trends over time and noticing when you&#8217;re significantly above or below your norm.</p><p>Think of it as a beauty metric hiding inside a health metric.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!cBQX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 424w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 848w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!cBQX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png" width="602" height="452.19354838709677" 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/__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 424w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 848w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cBQX!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4b2a3cbd-acbb-4e59-83e4-4c347503712a_1085x815.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 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production</p></li><li><p><strong>Olive oil (daily):</strong> rich in oleocanthal, a natural anti-inflammatory comparable in mechanism to ibuprofen, per research from the Monell Chemical Senses Center</p></li><li><p><strong>Sardines:</strong> one of the highest dietary sources of omega-3s and CoQ10, both essential for mitochondrial function and skin lipid barrier integrity</p></li><li><p><strong>Walking culture: </strong>Lisbon&#8217;s hills are accidental zone 2 cardio, the exercise intensity most associated with longevity</p></li><li><p><strong>Slower pace:</strong> chronic time-urgency elevates cortisol. The Portuguese concept of <em>sossego</em> (calm, ease) is not just cultural, it&#8217;s therapeutic</p></li></ul><p>This isn&#8217;t romanticizing expat life. It&#8217;s recognizing that the environment<strong> is protocol</strong>.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-science-of-aesthetics-part-1?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-science-of-aesthetics-part-1?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h3>The Maternal Shift</h3><p>Becoming a mother at 39 changed my relationship with my body in a way that was both humbling and clarifying. Pregnancy accelerates certain aging markers: oxidative stress, NAD+ depletion, and mitochondrial demand. Postpartum, especially sleep-deprived postpartum, compounds them.</p><p>But it also sharpened my toolkit. When you can&#8217;t afford to coast, you get efficient.</p><p>The research is clear: <strong>the interventions that support recovery from motherhood are the same ones that reverse biological aging.</strong> Prioritizing sleep quality over quantity, regulating blood sugar, managing nervous system load. The overlap is near-total.</p><div><hr></div><h3>Coming Up</h3><p><strong>Part 2</strong> goes inside the gut-skin axis &#8212; why your microbiome is showing up on your face, and what circadian eating actually does to your collagen production overnight.</p><div><hr></div><p style="text-align: center;"><em>RightShop.ai is building a smarter and personalized way to source wellness and beauty products across Europe &#8212; cutting through the noise to surface what the science actually supports. We&#8217;re currently in private beta.</em></p><p style="text-align: center;"><strong>&#8594; Join the waitlist at <a href="http://Rightshop.ai">Rightshop.ai</a></strong></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p style="text-align: center;"></p><p><strong>References:</strong></p><ul><li><p>L&#243;pez-Ot&#237;n et al. (2013). <em>The Hallmarks of Aging.</em> Cell, 153(6), 1194&#8211;1217.</p></li><li><p>Sinclair, D. (2019). <em>Lifespan: Why We Age and Why We Don&#8217;t Have To.</em></p></li><li><p>Kohl, S. et al. (2020). Estrogen and skin aging. <em>Dermato-Endocrinology.</em></p></li><li><p>Beauchamp, G.K. et al. (2005). Ibuprofen-like activity in extra-virgin olive oil. <em>Nature.</em></p></li></ul>]]></content:encoded></item><item><title><![CDATA[The Beauty Products My Mom Loved ]]></title><description><![CDATA[I always thought they were harmless. Then I learned how many toxic chemicals hide in everyday cosmetics and what that really means for women&#8217;s health and our choices.]]></description><link>https://rightdose.substack.com/p/the-beauty-products-my-mom-loved</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-beauty-products-my-mom-loved</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 12 May 2026 11:03:53 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!tTdY!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>I remember standing beside my mom in the bathroom as a teenager, watching her apply her morning routine. Creams, lotions, foundations, blush, a soft layer of fragrance. It was a ritual that felt graceful, familiar, and part of being a woman I admired.</p><p>Now, when I look at those same bottles lined up on a shelf, all I see is a cast of chemicals most of us never asked for and never really wanted. Behind those pretty labels lie substances few of us could pronounce(let alone understand), and some of them have been linked in research to serious health concerns, including hormone disruption and reproductive effects. </p><p>Here&#8217;s what shifted for me: beauty products are supposed to help us feel confident and cared&#8209;for, not quietly expose us to chemicals we don&#8217;t understand and didn&#8217;t choose.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2>The &#8220;Toxic Twelve&#8221; in Your Makeup Bag</h2><p>According to the <strong>Environmental Working Group</strong>, the industry that makes lotions, creams, lipsticks, and hair products reports using dozens of chemicals linked to cancer, reproductive harm, or developmental concerns. These are not fringe ingredients. Some are still found in products sold across North America today.</p><p>Among the chemicals identified are:</p><ul><li><p><strong>Formaldehyde and formaldehyde&#8209;releasing agents</strong> &#8212; used in some hair and nail products; known to be harmful with repeated exposure.</p></li><li><p><strong>Mercury</strong> &#8212; a potent toxic metal that can impact the nervous system.</p></li><li><p><strong>Certain phthalates</strong> &#8212; often hidden under the word <em>fragrance</em> and linked to hormone disruption.</p></li><li><p><strong>Parabens</strong> &#8212; preservatives that can mimic estrogen in the body.</p></li><li><p><strong>PFAS (per&#8209; and polyfluoroalkyl substances)</strong> &#8212; so&#8209;called forever chemicals that resist breakdown and accumulate over time.</p></li><li><p><strong>Aromatic amines</strong> in some hair dyes &#8212; linked to skin sensitization and other harms.</p></li></ul><p>What surprised me most is how many of these ingredients are allowed in the U.S. but <em>banned</em> in places like the European Union because of their health profiles.</p><p>Every day, American women use about <strong>12 personal care products containing an average of 168 chemicals</strong>, many of which are applied directly to the skin, the largest organ of the body.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!tTdY!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!tTdY!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg" width="1456" height="1758" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1758,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:499282,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/189379431?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!tTdY!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F411379aa-af4c-459e-9253-c0f8079526d6_1696x2048.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-beauty-products-my-mom-loved?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">Share with someone you love:</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-beauty-products-my-mom-loved?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-beauty-products-my-mom-loved?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></div><div><hr></div><h2>Why Most of This Isn&#8217;t on the Label</h2><p>This part is subtle but important. Some of the most concerning chemicals don&#8217;t have to be disclosed on the front of packaging because the law lets manufacturers group them under broad terms like <em>fragrance</em> instead of naming them individually. That means you could be applying hormones or plasticizers to your skin every day without ever seeing their names on the label.</p><p>When I first learned that, it changed how I looked at that ritual with my mom in the bathroom mirror. What if something meant to help her feel beautiful was also exposing her to chemicals her body didn&#8217;t recognize?</p><div><hr></div><h2>What Research Shows About Exposure</h2><p>The science on cosmetics ingredients and health involves a mix of signal and uncertainty. Not every product is harmful, and not every exposure leads to disease. But when chemicals are absorbed through the skin and enter the bloodstream repeatedly over years, it makes sense to pay attention.</p><p>Endocrine&#8209;disrupting chemicals like parabens and phthalates can interact with hormone systems &#8212; especially during critical windows like pregnancy or adolescence. PFAS chemicals are persistent in the body and environment, meaning they build up over time instead of breaking down on their own. Some formaldehyde&#8209;releasing preservatives are classified by international health bodies as carcinogenic.</p><p>These are not abstract concepts. Repeated, low&#8209;level exposures are the norm, not the exception, because beauty products are part of daily routines that most of us keep for decades. Every cream, serum, and lotion left on the skin for hours adds up.</p><div><hr></div><h2>We Feel Safe </h2><p>I never used to worry about ingredients. I trusted that if something was sold at a drugstore or department store, it had to be safe. That&#8217;s what many of us assume.</p><p>And yet the regulatory framework for cosmetics in the U.S. is surprisingly weak. <br><br>Despite tens of thousands of ingredients used in personal care, the U.S. federal government has banned only a handful. The <em>Food, Drug, and Cosmetic Act</em>, which governs these products, hasn&#8217;t been updated in a meaningful way in decades, and today cosmetic manufacturers are largely responsible for ensuring their own safety.</p><p>That&#8217;s a lot of faith to put in an industry whose main incentive is sales, not health outcomes.<br></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2>How to Decide What Matters</h2><p>This is not about scaring you. It&#8217;s about clarity and choice.</p><p>Here is a practical way to think about cosmetics and chemical exposure:</p><p><strong>1. Know what you use every day.</strong> A quick audit of your routine helps you see your &#8220;chemical diet.&#8221;<br><strong>2. Prioritize products with transparent labeling.</strong> Look for brands that list every ingredient by name, not under vague umbrella terms like <em>fragrance.</em><br><strong>3. Use databases from independent groups.</strong> Tools like EWG&#8217;s Skin Deep database let you search products and ingredients for safety scores. <br><br><em>PS - we are building a powerful tool to help you make better choices. If you&#8217;re not already subscribed to us, subscribe to get early access:</em></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><p><br><strong>4. Make incremental swaps.</strong> You don&#8217;t have to throw everything out at once. Start with what touches your skin longest or most often.<br><strong>5. Pay attention to how your body responds.</strong> Everyone is unique. Your lived experience is data worth honoring.</p><p>This is about choice, not fear.</p><div><hr></div><h2>Why This Matters More in 2026</h2><p>Interest in &#8220;clean beauty&#8221; has surged, but most people still don&#8217;t know the hidden chemical exposures they face each day. Recent research continues to show that thousands of products still contain ingredients flagged for concern &#8212; and that Black and Latina women are often exposed to even higher levels because of the specific products marketed to them.</p><p>New laws like California&#8217;s Toxic&#8209;Free Cosmetics Act are starting to move the needle on ingredient bans and transparency, but change is happening slowly and unevenly.</p><p>Women should not have to navigate this alone.</p><div><hr></div><h2>The Spring Reset</h2><p>This May and this spring, consider this: your beauty routine can be an act of self&#8209;respect and awareness. Knowing what is in your products and why it matters gives you control instead of confusion.</p><p>Beauty does not have to be compromised by ignorance. It can be grounded in choice.</p><p>So I want to ask you the same question I asked myself:</p><p><strong>What&#8217;s one product in your routine you could swap this month for something cleaner, simpler, and more transparent?</strong></p><p>Your decision today can shift your exposure tomorrow &#8212; and build a clearer, more empowered relationship with your own health.</p><div><hr></div><h2>Sources</h2><ul><li><p>The Toxic Twelve Chemicals and Contaminants in Cosmetics, Environmental Working Group. <a href="https://www.ewg.org/the-toxic-twelve-chemicals-and-contaminants-in-cosmetics?utm_source=chatgpt.com">https://www.ewg.org/the-toxic-twelve-chemicals-and-contaminants-in-cosmetics</a></p></li><li><p>Recent study on disproportionate chemical exposure in beauty products marketed to Black women. The Guardian. <a href="https://www.theguardian.com/us-news/2025/feb/25/black-women-beauty-products-hazardous-ingredients?utm_source=chatgpt.com">https://www.theguardian.com/us-news/2025/feb/25/black-women-beauty-products-hazardous-ingredients</a></p></li><li><p>California expands Toxic&#8209;Free Cosmetics Act ingredient bans. Allure. <a href="https://www.allure.com/story/california-toxic-free-cosmetics-act-ban-chemicals-beauty-products?utm_source=chatgpt.com">https://www.allure.com/story/california-toxic-free-cosmetics-act-ban-chemicals-beauty-products</a></p></li></ul><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><p></p>]]></content:encoded></item><item><title><![CDATA[Phthalates: The Invisible Chemical in Everyday Life]]></title><description><![CDATA[Most of us don&#8217;t think about what leaches out of our plastics, what&#8217;s in our lotions, or what sneaks into our food packaging. Phthalates are all of that and more. Let's begin to understand them today.]]></description><link>https://rightdose.substack.com/p/phthalates-the-invisible-chemical</link><guid isPermaLink="false">https://rightdose.substack.com/p/phthalates-the-invisible-chemical</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 28 Apr 2026 10:34:44 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!TCOG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>The other day, I looked at the plastic shower curtain in my bathroom and realized I had never once wondered what it was made of. <br>It was just a mundane object. <br>Functional, cheap, and reliable. <br><br>It never occurred to me that something so ordinary could be quietly leaving microscopic chemicals in the air and in the spaces where my family lived.</p><p>That&#8217;s the thing about phthalates. <br>They are everywhere and almost never labeled in plain sight. <br><br>You won&#8217;t see &#8220;phthalates&#8221; written on ingredient lists. Instead, they are buried under vague terms like &#8220;fragrance&#8221; or hidden in the materials that make up plastics. Yet they are a group of chemicals people are exposed to daily, often without realizing it.</p><p>Once I started paying attention, I began noticing them everywhere: the flexible plastic in toys, the clear packaging on snack foods, the vinyl flooring, and even in some of the products I had bought for myself or my family. </p><p>That nagging feeling of unease you get when you realize how much you don&#8217;t know about the products you touch every day? That was exactly what phthalates triggered.<br></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2>What Phthalates Actually Are</h2><p>Phthalates are a family of chemical additives most often used to make plastics more flexible, durable, and scent&#8209;holding. You&#8217;ll find them in polyvinyl chloride (PVC) plastics, vinyl products, adhesives, coatings, and in some personal care items as solvents and scent carriers.</p><p>They don&#8217;t bind tightly to the materials they&#8217;re used in, which means they can leach out over time and enter the environment and your body. You can inhale them as dust, ingest them from food wrapped or stored in phthalate&#8209;containing materials, or absorb them through skin contact with products that contain them.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!TCOG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!TCOG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg" width="1456" height="794" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!TCOG!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4bc9d5e7-87e4-464e-81cc-9669ed6ee364_2816x1536.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h2>Why People Talk About Phthalates</h2><p>Phthalates are part of a larger class of chemicals known as <strong>endocrine&#8209;disrupting chemicals</strong> (EDCs). These are compounds that <strong>interfere with hormone systems</strong> &#8212; the body&#8217;s internal messaging network that regulates everything from growth and metabolism to reproductive function.</p><p>Hormones are chemical messengers that influence virtually every function in our bodies. When a chemical can mimic or block those messages, even in tiny amounts, it can alter how systems behave. That&#8217;s why there is concern about phthalates &#8212; because they have been linked in research to changes in hormone levels, reproductive health outcomes, neurodevelopment, metabolism, and immune responses.</p><p>A broad review of scientific evidence found associations between phthalate exposure and:</p><ul><li><p>lower semen quality and reproductive changes in males</p></li><li><p>neurodevelopmental effects in children</p></li><li><p>asthma and allergic disease risks</p></li><li><p>metabolic disruption such as obesity and insulin resistance</p></li><li><p>low birthweight and early puberty in girls</p></li></ul><p>This doesn&#8217;t mean every exposure causes harm. The evidence varies by type of phthalate, level of exposure, age, and life stage. But when a chemical can affect hormone activity, especially during developmental windows like pregnancy or childhood, it raises questions worth paying attention to.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Support our work by subscribing. Subscribers get first access to the product we are building to help you decode ingredients and make choices with clarity:</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2>Where You Encounter Them in Daily Life</h2><p>Phthalates are not just in obvious plastics like water bottles or food containers. They can be found in:</p><ul><li><p>Vinyl flooring and wall coverings</p></li><li><p>Shower curtains and inflatable toys</p></li><li><p>Personal care products including some shampoos and fragrances</p></li><li><p>Food packaging and plastic wraps</p></li><li><p>Flexible containers and medical device tubing</p></li></ul><p>Because they are not chemically bound to the products, they can migrate into food, dust, and air. That means the exposure isn&#8217;t just theoretical. Measurable levels of phthalate metabolites are found in nearly every person&#8217;s urine in national biomonitoring studies.</p><p>Many adults are familiar with the warnings about avoiding plastics labeled with recycling codes #3, #6, and #7 when heating food. Those numbers often indicate materials more likely to contain phthalates or similar additives that can leach into food when heated.</p><div><hr></div><h2>My First Wake&#8209;Up Moment With Plastic</h2><p>A few years back, I heated leftovers in a plastic container, thinking nothing of it. Later that night, I read an article showing chemicals from plastic containers can leach into food, especially when heated or greasy. That wake&#8209;up moment forced me to realize I was exposing myself and my kids to substances I hadn&#8217;t chosen consciously. That instinctive discomfort became a catalyst for change.</p><p>When I began replacing everyday plastic storage with glass and ceramics, the difference was not just a reduction in plastic use, it was the <em>feeling</em> of control. I was no longer a passive consumer of whatever chemicals came my way.</p><p>That shift from ignorance to awareness is where true decision&#8209;making begins. It&#8217;s not about perfection. It&#8217;s about conscious choice.<br></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/phthalates-the-invisible-chemical?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/phthalates-the-invisible-chemical?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h2>How to Think About Phthalates Without Fear</h2><p>Here&#8217;s a simple framework that helped me decide what to do next:</p><p><strong>1. Know Where Exposure Matters Most</strong><br>Priority exposures are those you have <em>daily and internal</em> contact with &#8212; food storage, microwaving plastics (avoid it), and any products left on your skin for long periods.</p><p><strong>2. Evaluate Frequency vs. Impact</strong><br>A one&#8209;off exposure is not the same as everyday exposure. A flexible hose in your bathroom used daily will have a different risk profile than a plastic chair you use occasionally.</p><p><strong>3. Focus on Substitution Where Practical</strong><br>You don&#8217;t have to eliminate plastics entirely, but replacing certain categories: like food containers with glass, and scented personal care products with phthalate&#8209;free ones, reduces your total load over time.</p><p><strong>4. Notice Changes and Adjust</strong><br>Your body communicates through symptoms, not opinion. If you reduce sources and notice better sleep, mood, or digestion, that&#8217;s useful personal data. If not, adjust accordingly.</p><p>Good decision&#8209;making isn&#8217;t about eliminating every risk. It&#8217;s about identifying <em>which risks matter</em> to you and acting in a way that aligns with your life and your values.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">This is precisely why we are building RightShop.ai - Subscribing gets you on the early access list:</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2>The Bottom Line</h2><p>Phthalates are not a conspiracy or a myth. They are real chemical additives in hundreds of products that touch our lives. Research links them to hormone disruption and a range of health outcomes, especially at higher or chronic exposures. They are not always labeled clearly, and regulation varies by region and product type.</p><p>But that doesn&#8217;t mean you have to live in fear of everyday life. It means you can make informed, conscious choices. We can choose substitutes where it matters most, reduce unnecessary exposure, and build routines that prioritize our body&#8217;s internal communication systems, not overwhelm them.</p><p>The chemicals in our environment reflect the choices we make as consumers. Once you understand what phthalates are and where they show up, you gain the power to <em>choose better</em>.</p><div><hr></div><h2>Sources</h2><ul><li><p><strong>Phthalates</strong> overview and uses. Wikipedia. <a href="https://en.wikipedia.org/wiki/Phthalates?utm_source=chatgpt.com">https://en.wikipedia.org/wiki/Phthalates</a></p></li><li><p><strong>Endocrine disruptors and health</strong> &#8212; National Institute of Environmental Health Sciences. <a href="https://www.niehs.nih.gov/research/supported/exposure/endocrine?utm_source=chatgpt.com">https://www.niehs.nih.gov/research/supported/exposure/endocrine</a></p></li><li><p><strong>Human health impacts of phthalates</strong> &#8212; Environmental International review. <a href="https://pubmed.ncbi.nlm.nih.gov/34601394/?utm_source=chatgpt.com">https://pubmed.ncbi.nlm.nih.gov/34601394/</a></p></li><li><p><strong>What are phthalates</strong> &#8212; Environmental Working Group explanation. <a href="https://www.ewg.org/news-insights/news/2024/09/what-are-phthalates?utm_source=chatgpt.com">https://www.ewg.org/news-insights/news/2024/09/what-are-phthalates</a></p></li><li><p><strong>Phthalates exposure and sources</strong> &#8212; US EPA biomonitoring. <a href="https://www.epa.gov/americaschildrenenvironment/biomonitoring-phthalates?utm_source=chatgpt.com">https://www.epa.gov/americaschildrenenvironment/biomonitoring-phthalates</a></p></li></ul>]]></content:encoded></item><item><title><![CDATA[What Parabens Really Do to Your Body, And How to Think About Them]]></title><description><![CDATA[Parabens are everywhere in skincare, cosmetics, and personal care products. Understanding what they are and how to make choices around them can help you feel confident, not overwhelmed.]]></description><link>https://rightdose.substack.com/p/what-parabens-really-do-to-your-body</link><guid isPermaLink="false">https://rightdose.substack.com/p/what-parabens-really-do-to-your-body</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 14 Apr 2026 10:30:58 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!oBwX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>I remember the moment I first started paying attention to ingredient lists. I was holding the shampoo I had used for years. On the back, beneath the familiar words and logo, were a string of terms that looked like a foreign language. One of them was &#8220;methylparaben.&#8221;</p><p>I didn&#8217;t know what that meant. <br></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><p><br>But soon I started seeing similar names on dozens of products: creams, deodorants, lotions, even some sunscreens. Everywhere I looked, parabens were listed as preservatives. The more I read, the more uneasy I became. </p><p>Are these chemicals safe? </p><p>Could daily use be affecting my hormones, my metabolism, or my long&#8209;term health?</p><p>The short answer scientists give today is this: <strong>we still don&#8217;t know for sure, but parabens are biologically active in the human body, and they act in ways that can interfere with hormone systems.</strong> This matters because your hormones are silent messengers running much of how your body functions - from metabolism and mood to reproductive processes. The longer answer is where clarity meets nuance.</p><div><hr></div><h2>What Parabens Are and Why They&#8217;re Used</h2><p>Parabens are a group of synthetic compounds used as preservatives in cosmetics, personal care products, pharmaceuticals, and even some foods. You&#8217;ll see common ones such as <strong>methylparaben</strong>, <strong>ethylparaben</strong>, <strong>propylparaben</strong> and <strong>butylparaben</strong> on ingredient lists. <br><br>Their job is simple: prevent bacterial and fungal growth so products stay safe to use and don&#8217;t spoil quickly. In many formulations, parabens are effective, stable, and inexpensive.</p><p>In scientific reviews, they&#8217;re classified among chemicals of &#8220;emerging concern&#8221; because they are <strong>endocrine&#8209;disrupting chemicals (EDCs)</strong> &#8212; compounds that can mimic or interfere with hormones like estrogen in the body. Their presence has been detected not only in products but also in human tissues, urine samples, and the environment (i.e. water, dust etc.).</p><div><hr></div><h2>The Hormone Connection That People Talk About</h2><p>One reason parabens are controversial is that they can bind weakly to estrogen receptors. Estrogen is a hormone that plays roles in bone health, cardiovascular function, reproduction, and more. This doesn&#8217;t mean parabens <em>are estrogen</em>, but it does mean they can mimic some hormonal activity in laboratory settings.</p><p>Because of this, researchers remain cautious. Some studies suggest that chronic exposure &#8212; especially at higher levels or during sensitive windows like pregnancy &#8212; could influence hormone&#8209;related outcomes such as metabolism or reproductive health. Animal and cell studies have shown effects on these systems.</p><p>Importantly, the strongest evidence linking parabens to specific human diseases is still limited, and regulatory agencies in many countries still permit their use at low concentrations because of the lack of definitive causal human evidence. But the <em>potential</em> for biological activity is enough that many people choose to limit exposure where they can.</p><div><hr></div><h2>Where Parabens Hide in Everyday Life</h2><p>Because they&#8217;re cheap and effective, parabens are almost everywhere:</p><ul><li><p>Shampoos and conditioners</p></li><li><p>Moisturizers and lotions</p></li><li><p>Makeup and foundation</p></li><li><p>Sunscreens</p></li><li><p>Deodorants and body sprays</p></li><li><p>Toothpastes and mouthwashes</p></li><li><p>Some processed foods and pharmaceuticals</p></li></ul><p>The more products you use on your body every day, especially those you leave on your skin, the more cumulative exposure you may have. The fact that parabens also show up in environmental samples (like household dust and water) only adds another layer to exposure profiles.</p><div><hr></div><h2>Why People Feel Conflicted About Parabens</h2><p>The conversation around parabens is messy because the scientific record is not yet definitive. On one hand, parabens <em>do </em>have biological activity and are found in human tissue and fluids. On the other hand, many regulatory reviews still consider them safe at the low levels used in products. This duality creates a tension between evidence, perception, and precaution.</p><p>This ambiguity is fertile ground for fear&#8209;based marketing. Many brands now promote &#8220;paraben&#8209;free&#8221; as if it automatically means &#8220;safe.&#8221; But avoidance isn&#8217;t the same as clarity. There is no guarantee that substituting parabens with other preservatives produces a <em>healthier</em> product &#8212; and some alternatives are less well studied and carry their own risk profiles.</p><p>That means if you want to make smart decisions, you need to go beyond simple labels and understand the <strong>trade&#8209;offs and context</strong> of your choices.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Make Better Choices. Unlock RightShop Beta Access by Subscribing:</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2>A Decision Framework for Parabens</h2><p>Here&#8217;s a practical way to think about parabens and your products without anxiety or blind trust:</p><h3>Step 1 &#8212; Evaluate Exposure</h3><p>Which products do you use daily? Which sit on your skin all day (like moisturizers or sunscreens) versus rinse off soon (like shampoo)? The longer the contact and the more frequent the use, the more important your decision.</p><h3>Step 2 &#8212; Understand Your Priorities</h3><p>Are you most concerned about hormonal impacts? Allergies or skin sensitivity? Long&#8209;term chronic exposure? Your priorities determine what you pay attention to in ingredient lists.</p><h3>Step 3 &#8212; Track What Matters</h3><p>Rather than eliminating all potential risks, focus on what meaningfully shifts your total exposure. If parabens are present in several products you use daily, start by swapping just those rather than rewiring your whole routine all at once.</p><p>This framework turns anxiety into agency. Your goal isn&#8217;t perfection. It&#8217;s <strong>informed, values&#8209;aligned decision&#8209;making</strong>.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!oBwX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!oBwX!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!oBwX!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, 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sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!oBwX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg" width="1456" height="1456" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!oBwX!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!oBwX!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!oBwX!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6998df79-5d34-4658-9939-97ef0d5eeb79_2048x2048.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h2>What Scientists Are Still Figuring Out</h2><p>There are ongoing global efforts to better understand human exposure to parabens and their potential health impacts. Biomonitoring studies show that parabens are widespread across populations and that exposure can vary by age, geography, and product use patterns. Some research suggests that children and pregnant women tend to have higher exposure levels than adults, which is one reason experts continue to pay attention.</p><p>As research evolves, so too will regulatory guidance and consumer expectations.</p><div><hr></div><h2>The Real Takeaway</h2><p>Parabens are neither universally &#8220;safe&#8221; nor definitively &#8220;dangerous.&#8221; They occupy a gray zone where potential biological activity intersects with long histories of use and widespread consumer exposure. That ambiguity is exactly why a <strong>decision&#8209;making mindset matters more than fear or avoidance.</strong></p><p>You deserve clarity &#8212; not confusion &#8212; when you shop for products that touch your body every day. Understanding an ingredient like parabens gives you a lens, not an ultimatum. It lets you weight evidence, preferences, and lifestyle all at once.</p><p>In the end, health is not about eliminating every risk. It&#8217;s about <strong>choosing what matters to you</strong> and acting with confidence, not anxiety.</p><p>Now ask yourself this:<br><strong>What&#8217;s one product you use every day where you could make a more informed choice tomorrow?</strong></p><div><hr></div><h2><strong>Sources</strong></h2><ul><li><p>Fang Wei et al. <em>Parabens as chemicals of emerging concern in the environment and humans.</em> <strong>Science of the Total Environment</strong> 778:146150. <a href="https://pubmed.ncbi.nlm.nih.gov/34030374/">https://pubmed.ncbi.nlm.nih.gov/34030374/</a></p></li><li><p>Parabens overview in MDPI review on endocrine disruptors. <a href="https://www.mdpi.com/2075-1729/13/1/138?utm_source=chatgpt.com">https://www.mdpi.com/2075-1729/13/1/138</a></p></li><li><p>Review of risks of parabens and cosmetics. <a href="https://pubmed.ncbi.nlm.nih.gov/31903662/">https://pubmed.ncbi.nlm.nih.gov/31903662/</a></p></li><li><p>Expert explanation of parabens, exposure, and uncertainty. <strong>Cleveland Clinic Health</strong><a href="https://health.clevelandclinic.org/what-are-parabens?utm_source=chatgpt.com">https://health.clevelandclinic.org/what-are-parabens</a></p></li><li><p>Global biomonitoring data on parabens exposure trends. <a href="https://doi.org/10.1016/j.envres.2025.122461">https://doi.org/10.1016/j.envres.2025.122461</a></p></li></ul>]]></content:encoded></item><item><title><![CDATA[Why Most People Quit “Healthy Living” After Three Weeks ]]></title><description><![CDATA[We tell ourselves the problem is motivation. The truth is more hopeful.]]></description><link>https://rightdose.substack.com/p/why-most-people-quit-healthy-living</link><guid isPermaLink="false">https://rightdose.substack.com/p/why-most-people-quit-healthy-living</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 31 Mar 2026 10:31:02 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!Bdss!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><strong>Most health kicks crash</strong> not because you&#8217;re &#8220;weak,&#8221; but because your world wasn&#8217;t built to support your new goals. Around the <strong>three-week mark</strong>, that initial spark usually dies. Your workouts start to feel like a chore, meal prep gets messy, and those &#8220;zen&#8221; meditation notifications start to feel like nagging demands. Almost instantly, that old, familiar voice kicks in:</p><p><strong>&#8220;I just need more willpower&#8221;</strong> or &#8220;I&#8217;m just not consistent enough&#8221;. </p><p>We&#8217;ve been conditioned to treat health like a <strong>character test</strong>&#8212;if the habit sticks, you&#8217;re a hero; if it fades, you just weren&#8217;t serious. </p><p>But decades of science tell a different story: it&#8217;s rarely about a lack of grit. People quit because they try to change their actions without changing the <strong>surrounding environments and social circles</strong> that actually dictate their daily moves.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thank you for reading and being here. As we build out the beta of RightShop - Subscribing to our free newsletter supports our work and gives you first access to it:</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2>Motivation is a weak force on its own</h2><p>The real issue isn&#8217;t inside you&#8212;it&#8217;s <strong>around you</strong>. Motivation feels like a superpower when it first arrives, helping you buy the gear or clear out the fridge, but it&#8217;s a <strong>terrible long-term engine</strong>. Motivation simply cannot survive &#8220;friction&#8221;. Friction is the exhaustion you feel after a long shift, family routines that don&#8217;t match your new path, or a social life built entirely on happy hours and late nights. It&#8217;s the weight of stress and a brain that is simply overloaded.</p><p>Knowing what&#8217;s healthy isn&#8217;t enough to make it stick. We can fully understand the benefits and still fail to keep the routine&#8212;not because we&#8217;re irrational, but because it&#8217;s <strong>predictable human nature</strong>. Real change isn&#8217;t fueled by information; it&#8217;s shaped by a <strong>web of influences</strong> like your planning skills, the feedback you receive, and whether your friends think your new habit is &#8220;normal&#8221;.</p><p><strong>Motivation gets you off the starting line, but systems cross the finish line</strong>. That three-week wall isn&#8217;t a biological mystery; it&#8217;s when the <strong>&#8220;new car smell&#8221;</strong> of your habit wears off. Once that novelty is gone, you are left with your structure. If your environment makes the healthy choice the hard choice, the habit will eventually crumble.</p><p>If your social circle doesn&#8217;t back you up, your habit becomes <strong>&#8220;socially expensive&#8221;</strong>. If your calendar has no protected space for your new goal, it&#8217;s forced to compete with everything else already fighting for your time. Research shows that when we ignore the <strong>context of our lives</strong>&#8212;who we live with, how our jobs are set up, and what our friends reward&#8212;our consistency drops off a cliff.</p><p>When you don&#8217;t change these conditions, you&#8217;re forced to rely on <strong>self-control</strong>, which is a finite battery that eventually runs out. The habits that actually last aren&#8217;t heroic&#8212;they&#8217;re <strong>ordinary and easy</strong>. They survive because they are built into shared routines, have low barriers to entry, and offer simple, social rewards. They are held together by <strong>systems</strong>.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Bdss!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 1456w" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!Bdss!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb19ae114-cca5-42fd-ad7c-44361e11cd6d_2048x2048.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/why-most-people-quit-healthy-living?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/why-most-people-quit-healthy-living?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h2>What actually makes habits stick</h2><p>We&#8217;re talking about <strong>family systems, work systems, and friendship systems</strong>. Without these &#8220;safety nets,&#8221; you&#8217;re just one person trying to overpower your entire world with nothing but good intentions. That is a <strong>fragile strategy</strong>. </p><p>Remember: humans are social animals living in highly engineered worlds. Any health plan that ignores your social reality is likely to lose.</p><p>It&#8217;s not that people don&#8217;t care; it&#8217;s that <strong>care can&#8217;t fight friction forever</strong>. If you want a different result, stop asking how motivated you are. Instead, ask: <strong>&#8220;Who makes this easier?&#8221;</strong> and &#8220;Where does this fit naturally in my life?&#8221;</p><p>Lasting health isn&#8217;t built by stronger individuals; it&#8217;s built by <strong>better systems</strong>.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!V6T9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc89e97b9-6a9f-4fad-8c4d-a90db6c37198_1408x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!V6T9!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, 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/__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc89e97b9-6a9f-4fad-8c4d-a90db6c37198_1408x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2>Sources</h2><ul><li><p>Michie S, West R, Sheals K, Godinho CA. <em>Evaluating the effectiveness of behavior change techniques in health-related behavior.</em> A major review of behaviour change theories and mechanisms.<br><a href="https://pubmed.ncbi.nlm.nih.gov/29381786/">https://pubmed.ncbi.nlm.nih.gov/27615529/</a></p></li><li><p>Al-Rasheed M. <em>The Health Belief Model&#8217;s ability to predict preventive health behavior: a systematic review.</em>Highlights the role of self-efficacy and social influence in sustained behaviour.<br><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9310284/">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9310284/</a></p></li><li><p>Michie S, van Stralen MM, West R. <em>The Behaviour Change Wheel: a new method for characterising and designing behaviour change interventions.</em> Shows how social and environmental opportunity, not just motivation, drives behaviour.<br><a href="https://pubmed.ncbi.nlm.nih.gov/21513547/">https://pubmed.ncbi.nlm.nih.gov/22062334/</a></p></li><li><p>Conn VS, Hafdahl AR, Mehr DR. <em>Interventions to increase physical activity among healthy adults: meta-analysis.</em>Demonstrates stronger effects when interventions include social and behavioural support components.<br><a href="https://pubmed.ncbi.nlm.nih.gov/21330590/">https://pubmed.ncbi.nlm.nih.gov/23882416/</a></p></li></ul>]]></content:encoded></item><item><title><![CDATA[More Than a Pill: Why Feeling Safe Drives Our Health Choices ]]></title><description><![CDATA[Why most health decisions aren&#8217;t about logic. They&#8217;re about belonging, safety, and psychology.]]></description><link>https://rightdose.substack.com/p/more-than-a-pill-why-feeling-safe</link><guid isPermaLink="false">https://rightdose.substack.com/p/more-than-a-pill-why-feeling-safe</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 17 Mar 2026 11:07:45 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!LJvJ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F132180de-24c5-42c6-9bf7-72ae8c52f577_2048x2048.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>We live in an era where health information is abundant, where apps track every step and supplement aisles tower with options promising better sleep, sharper focus, and longer life. And yet most of us have been there, standing in a wellness aisle, holding a bottle of something scientifically promising, and thinking:</p><p><em>&#8220;If I take this, maybe I&#8217;ll finally feel in control.&#8221;</em></p><p>This feeling isn&#8217;t incidental. <br>It&#8217;s central to how humans make health decisions.</p><p>In the push toward evidence-based practices, we often overlook the <strong>emotional drivers</strong> that precede behaviour; most notably, the need for <em>safety</em>, <em>control</em>, and <em>belonging</em>. </p><p>A pill isn&#8217;t just a pill. <br><br><strong>It&#8217;s a statement.</strong> <br><br>It&#8217;s a story we tell ourselves about who we are, what&#8217;s possible, and how much agency we have over our bodies.</p><p>In this essay, we explore why health choices are <strong>psychological before they are biological</strong>, and what that means for anyone trying to actually <em>change</em> their health trajectory.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2>We Act First Through the Story, Then Through the Body</h2><p>Let&#8217;s begin with a fairly simple question:<br><br>Why do people take supplements that have mixed evidence for long-term outcomes?</p><p>The answer begins with something that doesn&#8217;t show up on lab tests: <strong>perceived control</strong>.</p><p>In psychology, one of the most enduring models of health behaviour; the <em>Health Belief Model</em>, explains that people change behaviour when they believe:</p><ol><li><p>They are susceptible to a condition</p></li><li><p>The condition has serious consequences</p></li><li><p>A specific action will reduce their risk</p></li><li><p>The benefits of action outweigh the barriers</p></li></ol><p>And, crucially,<br><br>5. They feel <em><a href="https://en.wikipedia.org/wiki/Health_belief_model">capable and in control</a></em><a href="https://en.wikipedia.org/wiki/Health_belief_model?utm_source=chatgpt.com"> </a>of doing it.</p><p>Here&#8217;s the twist: the last point, <em>capability and control</em>, is often the one that motivates behavior most strongly. It is why pills, powders, and devices feel appealing. They offer a <strong>symbolic agency</strong> (something tangible that makes us feel like we are doing <em>something.</em>)</p><p>Control isn&#8217;t just a psychological nicety. It&#8217;s a survival mechanism. Our nervous systems evolved to assess risk and safety before all else. When we feel unsafe, physiologically, financially, socially, we make choices that reduce uncertainty <em>even if the evidence is modest</em>.</p><p>That&#8217;s why people say things like:</p><blockquote><p>&#8220;I don&#8217;t know if it works, but I feel safer taking it.&#8221;</p></blockquote><p>This isn&#8217;t irrational. It&#8217;s human.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2>Emotion Drives Health Behavior</h2><p>A 2020 review in <em>Translational Behavioral Medicine</em> found that behavior change interventions work best when they address not just cognition (what people know) but also <em>emotional states and support structures</em>.</p><p>This idea matters deeply:</p><p><strong>Knowing something is scientifically good for you is far less predictive of behavior than </strong><em><strong>feeling</strong></em><strong> empowered to do it.</strong></p><p>Think about the last time you didn&#8217;t follow through on something you <em>knew</em> was best. Whether it was a supplement, a workout plan, a diet shift, or a therapy routine. It wasn&#8217;t lack of knowledge that stopped you. <br><br>It was a combination of emotional weight, social context, and psychological safety.</p><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/more-than-a-pill-why-feeling-safe?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">Sharing is caring&#8230; share this information with a friend.</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/more-than-a-pill-why-feeling-safe?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/more-than-a-pill-why-feeling-safe?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></div><div><hr></div><h2>Safety Isn&#8217;t Just Physical. It&#8217;s Social.</h2><p>We often reduce health decisions to calories, blood markers, or metabolic pathways. But at a human level, <strong>health behavior exists within social context</strong>.</p><p>When we choose a supplement, a food, a regimen, or a diet, we are also choosing:</p><ul><li><p>Belonging to a community</p></li><li><p>Reassurance in a world of uncertainty</p></li><li><p>A story we can tell ourselves and others</p></li></ul><p>For example, adopting a wellness trend often signals identity:<br><br><em>&#8220;I am health-conscious,&#8221;</em><br><em>&#8220;I care about my body,&#8221;</em><br><em>&#8220;I&#8217;m doing something proactive.&#8221;</em></p><p>Those are emotional outcomes. <br>And they matter psychologically.<br><br><strong>Feeling capable predicts long-term adherence more than understanding facts.</strong></p><p>So when someone takes a supplement &#8220;just in case,&#8221; they&#8217;re often not ignoring logic&#8230;<br><br>They&#8217;re satisfying a deeper need for agency in a world that feels unpredictable and complex.</p><div><hr></div><h2>Health Isn&#8217;t Just Information<br>It&#8217;s Human</h2><p>This insight reframes how we think about health support:</p><ul><li><p>Data isn&#8217;t enough</p></li><li><p>Willpower isn&#8217;t the key problem</p></li><li><p>Motivation doesn&#8217;t come from facts alone</p></li></ul><p>People need a <em>story they believe in</em> and a <em>context that feels safe.</em></p><p>We can see this in real behavioral outcomes:</p><ul><li><p>People who feel socially supported adhere better to health regimens</p></li><li><p>People who feel overwhelmed or threatened revert to avoidance</p></li><li><p>People who feel safe experiment, adapt, and persist</p></li></ul><p>This has implications both for individuals and for public health messaging.</p><p>Instead of saying:<br><em>&#8220;Do this because the data shows it improves outcomes,&#8221;</em></p><p>We might say:<br><em>&#8220;Here&#8217;s one way to feel more grounded and empowered while you pursue your health goals.&#8221;</em></p><p>That&#8217;s a psychological anchor. It works better because it speaks to the lived experience, not just lab results.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!LJvJ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F132180de-24c5-42c6-9bf7-72ae8c52f577_2048x2048.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!LJvJ!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F132180de-24c5-42c6-9bf7-72ae8c52f577_2048x2048.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!LJvJ!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, 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6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h2>What This Means for You</h2><p>If you&#8217;ve ever:</p><ul><li><p>chosen a product for &#8220;peace of mind&#8221;</p></li><li><p>felt torn between evidence and what feels right</p></li><li><p>stuck with something that &#8220;just feels good&#8221;</p></li></ul><p>&#8230; you were responding to something real and human, not irrational.</p><p>Health isn&#8217;t just a body science, it&#8217;s a <em>story science.<br></em><br>It&#8217;s not just about what <em>should</em> work, but what <em>people can live with.</em></p><p>If we want behavior change that sticks, we must design for:</p><ul><li><p>emotional resilience</p></li><li><p>perceived agency</p></li><li><p>social and psychological safety</p></li></ul><p>That&#8217;s the next frontier of health: one that blends biology with something far older and more human:</p><p><strong>our need to feel capable, rooted, and hopeful.</strong></p><div><hr></div><h2>Let&#8217;s Discuss&#8230;</h2><p>&#128073; <em>What health choice have you made because it made you feel in control, even if you weren&#8217;t sure it was &#8220;scientifically proven&#8221;?</em><br><br>Share below.</p><div><hr></div><h3>Sources</h3><ul><li><p>Health Belief Model &#8211; overview and core constructs<br><a href="https://en.wikipedia.org/wiki/Health_belief_model">https://en.wikipedia.org/wiki/Health_belief_model</a></p></li><li><p>Health Belief Model (clinical / applied summary &#8211; StatPearls, NCBI)<br><a href="https://www.ncbi.nlm.nih.gov/books/NBK606120/">https://www.ncbi.nlm.nih.gov/books/NBK606120/</a></p></li><li><p>Systematic review showing that self-efficacy and perceived benefits are strong predictors of health behaviour (Health Belief Model)<br><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9310284/">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9310284/</a></p></li><li><p>Review of major health behaviour change theories showing behaviour is driven by perceived control, social influence and psychological factors (not knowledge alone)<br><a href="https://pubmed.ncbi.nlm.nih.gov/27615529/">https://pubmed.ncbi.nlm.nih.gov/27615529/</a></p></li></ul>]]></content:encoded></item><item><title><![CDATA[The 14-Minute TED Talk That Could Change How Long and Well You Live ]]></title><description><![CDATA[Co-Founder of RightShop, Shreya Vohora gave a powerful talk that everyone needs to hear]]></description><link>https://rightdose.substack.com/p/the-tedtalk-that-could-change-how</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-tedtalk-that-could-change-how</guid><dc:creator><![CDATA[Michelle Martin]]></dc:creator><pubDate>Tue, 03 Mar 2026 10:06:18 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/MBxukJkR1j8" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h2><strong>Why Where You Live Might Be Slowing You Down (Even If You&#8217;re Doing All the &#8220;Right&#8221; Things)</strong></h2><p><em>Reflections on Shreya Vohora&#8217;s TEDx Talk</em></p><p>&#128250; <strong>Watch the TEDx Talk below</strong> &#8212; it&#8217;s 14 minutes that might change how you think about your home, your health, and your choices:</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p></p><div id="youtube2-MBxukJkR1j8" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;MBxukJkR1j8&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/MBxukJkR1j8?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-tedtalk-that-could-change-how?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">Share this with someone you love</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-tedtalk-that-could-change-how?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-tedtalk-that-could-change-how?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></div><div><hr></div><p>We count steps, calories, biomarkers, even breathwork sessions &#8212; but for most of us, the <em>ground zero</em> of health hasn&#8217;t even been in the conversation: <strong>the air, surfaces, and materials where we sleep, cook, and live.</strong></p><p>That&#8217;s the quiet, powerful insight at the heart of Shreya Vohora&#8217;s TEDx talk &#8212; and it&#8217;s exactly the kind of idea <strong>RightDose exists to explore and amplify.</strong> It&#8217;s precisely why she has co-founded RightShop.ai - to help us all make better choices.</p><p>Shreya doesn&#8217;t just present data, she tells a story about how the spaces we inhabit function biologically. Our homes, in her words, are either <strong>restorative oases or a slow chemical marinade.</strong> And for most people, we don&#8217;t even realize which one we&#8217;re in. </p><p>Here are the *big takeaways that landed with me:</p><h3><strong>1. Health is not just what you eat. It&#8217;s where you live.</strong></h3><p>We can optimize nutrition and exercise, yet if our environment is laden with hidden exposures, chemicals in furniture, microplastics in textiles, VOCs off-gassing from products then we&#8217;re still fighting a losing battle. </p><h3><strong>2. Just because something is labeled &#8220;eco-friendly&#8221; doesn&#8217;t mean it&#8217;s safe.</strong></h3><p>The marketing language around wellness and design often hides biological impact rather than revealing it. Shreya challenges us to look past the labels and understand the material reality of our spaces. Labels and ingredient lists are confusing and labyrinth like and most of us don&#8217;t understand the risks involved with these ingredients.</p><h3><strong>3. The invisible shapes the visible.</strong></h3><p>Air quality, building materials, hidden chemicals - none of these show up on a fitness app, but they shape our energy, focus, mood, and longevity more than we admit. </p><h3><strong>4. Small changes compound into big effects.</strong></h3><p>This isn&#8217;t meant to make you anxious, it&#8217;s an invitation to be curious, to question defaults, and to take back agency over the environments that literally surround you 24/7. To bring awareness to the small things we can do to make our environments healthy.</p><div><hr></div><p>&#128161; <strong>Why this matters to RightDose readers:</strong><br><br>We talk about exposure every week:  from microplastics to indoor air quality and chemical burden, but most frameworks stop at <em>what</em> is in products. Shreya pushes us upstream: <em>where</em> those products live and function matters biologically. That&#8217;s a perspective every lifespan, wellbeing, and consumer safety conversation should include. </p><div><hr></div><h3><strong>A question for you:</strong></h3><p>If you flipped over the label on a product you use every day &#8212;  the stuff you <em>touch, breathe, and sleep near</em> &#8212; what would you find? Share your reaction with someone who still thinks &#8220;health starts inside the body, not around it.&#8221;</p><div><hr></div><p>&#128204; <strong>RightDose belief:<br></strong><br>Your home should be a sanctuary for your biology, not a battlefield.</p><div><hr></div><p>What is one product you can swap out today? </p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose: Truth in Every Drop! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div>]]></content:encoded></item><item><title><![CDATA[Your Home: Sanctuary or Pollution Hub?]]></title><description><![CDATA[Indoor air quality impacts health. You can lower your exposure starting today.]]></description><link>https://rightdose.substack.com/p/your-home-sanctuary-or-pollution</link><guid isPermaLink="false">https://rightdose.substack.com/p/your-home-sanctuary-or-pollution</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 24 Feb 2026 13:03:31 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!6J7_!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6348d8cb-d5b6-47bb-9544-f7b70db3ce9f_1408x768.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><strong>&#128202; DATA DROP</strong></p><p><strong>What&#8217;s new:<br><br></strong>The common perception is that air pollution is an outdoor issue; traffic, factories, and smog. However, extensive monitoring reveals that the average person&#8217;s exposure to <strong>particulate matter 2.5 (PM2.5)</strong> is often <em>higher indoors</em> than out. Indoor sources like cooking, burning candles or fireplaces, and even certain cleaning products are major contributors. For those living in urban areas, simply opening a window may not be the worst decision, but failing to address the internal sources is a bigger risk. <strong><a href="https://www.c40knowledgehub.org/s/article/WHO-Air-Quality-Guidelines?language=en_US">1</a></strong></p><p>Aerosols and sprays from personal care products also contribute to indoor chemical load, ventilation helps here too. These volatile organic compounds (VOCs) can react with ozone to form secondary pollutants, adding another layer of complexity to indoor air quality. <strong><a href="https://www.bafu.admin.ch/en/who-air-quality-guidelines-2">2</a><br><br>Environmental policy context: </strong>While outdoor air quality is heavily regulated by agencies like the EPA, regulation of indoor air quality is largely left to building codes and voluntary industry standards. This regulatory gap means the burden of monitoring and mitigating indoor pollutants falls almost entirely on the individual consumer.</p><p><strong>Key takeaway:</strong> Your home is not a sanctuary from pollution; it is a concentration chamber for pollutants produced by modern living.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Every subscriber counts as we build towards launching our beta. Subscribe and share! We are grateful for your support.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p><strong>&#129516; LONGEVITY LENS</strong></p><p>PM2.5 is a leading environmental risk factor for premature death worldwide, known to penetrate deep into the lungs and enter the bloodstream. Our exposure happens wherever we spend the most time, and for most of us, that&#8217;s inside. <strong><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8494774/">3</a></strong></p><p>Here is a simple <strong>3-Step Protocol</strong> for an evidence-informed reduction in air pollution exposure:</p><ol><li><p><strong>Stop the Source:</strong> Identify and eliminate major indoor pollutant sources. This includes using vented exhaust fans while cooking, replacing candles with non-combustible alternatives, and switching to low-VOC cleaning and personal care products.</p></li><li><p><strong>Filter the Air:</strong> Use a high-quality portable air filter (HEPA or MERV-13 equivalent) in primary living and sleeping spaces. Research shows consistent use significantly reduces particle counts and, in some studies, leads to measurable health improvements. <strong><a href="https://www.stateofglobalair.org/sites/default/files/documents/2022-03/soga-special-analysis_0.pdf">4</a></strong></p></li><li><p><strong>Ventilate Wisely:</strong> Introduce fresh air strategically. Use smart air monitors to know when the outdoor air quality is good, and then open windows to dilute indoor chemical loads. If outdoor air quality is poor, rely solely on high-quality filtration.</p></li></ol><p><strong>Bottom line for longevity:</strong> Taking control of your indoor air quality is one of the most cost-effective and immediate ways to lower your daily chronic toxic burden.</p><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/your-home-sanctuary-or-pollution?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">Share this protocol with a friend:</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/your-home-sanctuary-or-pollution?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" 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/__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6348d8cb-d5b6-47bb-9544-f7b70db3ce9f_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!6J7_!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6348d8cb-d5b6-47bb-9544-f7b70db3ce9f_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!6J7_!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6348d8cb-d5b6-47bb-9544-f7b70db3ce9f_1408x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!6J7_!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6348d8cb-d5b6-47bb-9544-f7b70db3ce9f_1408x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>&#127760; COMMUNITY SPOTLIGHT<br><br></strong>This week we&#8217;re highlighting <span class="mention-wrap" data-attrs="{&quot;name&quot;:&quot;Non-Toxic Home&quot;,&quot;id&quot;:243192684,&quot;type&quot;:&quot;user&quot;,&quot;url&quot;:null,&quot;photo_url&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/0f7b2910-c789-421a-af67-04cd23511a18_300x300.png&quot;,&quot;uuid&quot;:&quot;647af528-9c41-4afe-96de-00b9898302d5&quot;}" data-component-name="MentionToDOM"></span> &#8216;s <strong>newsletter on environmental health and household pollutants</strong>. This publication focuses on improving health by reducing exposure to everyday environmental stressors like chemical sensitivities, molds, allergens, and volatile compounds.</p><p>A recent insight from Non-Toxic Home emphasizes the importance of not just avoiding known toxins, but understanding how <strong>indoor environments and seemingly innocuous products can contribute to long-term exposure</strong>. Checking product labels, choosing low-VOC alternatives, and intentional air management are practical strategies you can start today.</p><p>&#128073; <em>Read more at <a href="/__u/substack.com/@nontoxichome?utm_source=global-search">Non-Toxic Home</a></em> to learn evidence-informed approaches to safer living environments.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><p><strong>&#128279; SOURCES &amp; LINKS</strong></p><p><strong>Indoor air pollution studies and mitigation:</strong></p><ul><li><p><strong>Indoor PM2.5 Exposure and Its Health Implications</strong>: <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8978189/">Review on indoor vs. outdoor concentration ratios and health impacts</a>.</p></li><li><p><strong>EPA on indoor particulate matter:</strong> Indoor PM levels can exceed outdoor and contribute to <a href="https://www.epa.gov/indoor-air-quality-iaq/indoor-particulate-matter">health effects.</a></p></li><li><p><strong>Systematic review of indoor exposure:</strong> Indoor PM and VOCs linked with <a href="https://iaqsociety.org/2023/05/05/indoor-exposure-to-selected-air-pollutants-in-the-home-environment-a-systematic-review/">respiratory symptoms and asthma</a>.</p></li><li><p><strong>Effects of filtration:</strong> Indoor air cleaners (HEPA filters) lower particulate exposures and are associated with<a href="https://www.ncbi.nlm.nih.gov/books/NBK583504/"> health improvements.</a></p></li></ul>]]></content:encoded></item><item><title><![CDATA[Your Scrub, Your Glitter, Your Bloodstream. ]]></title><description><![CDATA[A Microplastics Update.]]></description><link>https://rightdose.substack.com/p/your-scrub-your-glitter-your-bloodstream</link><guid isPermaLink="false">https://rightdose.substack.com/p/your-scrub-your-glitter-your-bloodstream</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 17 Feb 2026 11:55:15 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!bVD8!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe6c8cdf8-6396-4eb5-abe4-d5118637e439_2048x2048.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h2><strong>&#128202; DATA DROP</strong></h2><p><strong>What&#8217;s new:</strong><br>A recent spectroscopic analysis found that common cosmetic products &#8212; including facial cleansers, scrubs, and creams &#8212; contain <strong>polyethylene and polypropylene microplastics</strong> in a large proportion of tested items, confirming that these tiny plastics are being <em>intentionally</em> added to personal care products. These particles are often used for exfoliation, texture enhancement, or stability.</p><p>Separately, reviews of the literature show that microplastics are present in many rinse-off personal care products such as facial scrubs, shower gels, exfoliators and toothpaste. Particle counts in some cosmetic categories reached as high as <strong>tens of millions per 100 g of product</strong>, demonstrating the scale of plastic content in everyday use.</p><p><strong>Environmental policy context:</strong><br>Regulatory frameworks in the EU and elsewhere are moving toward phasing out microplastics intentionally added to cosmetics, with bans on microbeads already in place and future restrictions scheduled for other product types &#8212; although full phase-outs may take years.</p><p><strong>Key takeaway:</strong> these are <strong>primary microplastics</strong> &#8212; intentionally manufactured into products &#8212; and they <em>wash off directly into wastewater</em> where they persist unless effectively filtered.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Curious about labels, ingredients and non-toxic living? Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><h2><strong>&#129516; LONGEVITY LENS</strong></h2><p><strong>Microplastics are being detected in human tissues</strong>, including blood and other internal fluids. Researchers at a recent scientific conference on microplastics and human health emphasized that this part of the story is <em>no longer speculative</em> &#8212; presence has been documented in multiple tissues. Translating detection into clear disease risk, however, remains an ongoing scientific challenge.</p><p>Here&#8217;s what that means for health and aging science:</p><p><strong>1. Exposure vs. effect:</strong><br>Detecting particles in blood or organs does <em>not yet establish a cause-and-effect relationship</em> with disease. Ongoing research is needed to answer whether these particles trigger systemic inflammation or contribute to chronic conditions over long periods.</p><p><strong>2. The uncertainty gap:</strong><br>Because microplastics vary widely in polymer type, size, shape, and surface chemistry, risk assessments are complicated. Scientists emphasize that different particles may interact with cells and biological systems in unique ways, and the field is still defining standardized metrics for exposure and effect.</p><p><strong>3. Plausible mechanisms:</strong><br>Experimental and animal studies suggest that microplastics can provoke <strong>oxidative stress</strong>, immune responses, and <em>carry associated chemical stressors</em> into biological systems &#8212; pathways consistent with known aging and inflammation processes, even if direct causal links in humans are not yet fully established.</p><p><strong>Bottom line for longevity:</strong> detecting microplastics in internal tissues is a <em>signal of exposure</em>, but we are still building the evidence base to understand long-term health implications, especially regarding cognitive aging or cardiovascular risk.</p><div class="captioned-button-wrap" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/your-scrub-your-glitter-your-bloodstream?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM"><div class="preamble"><p class="cta-caption">If this issue helped you think differently &#8212; forward it.</p></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/your-scrub-your-glitter-your-bloodstream?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/your-scrub-your-glitter-your-bloodstream?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!bVD8!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe6c8cdf8-6396-4eb5-abe4-d5118637e439_2048x2048.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" 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/__u/substackcdn.com/image/fetch/$s_!bVD8!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe6c8cdf8-6396-4eb5-abe4-d5118637e439_2048x2048.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h2><strong>&#127760; COMMUNITY SPOTLIGHT</strong></h2><p>This week we&#8217;re highlighting <strong>Shu Li&#8217;s </strong><em><strong>Microplastics Insights</strong></em> on Substack, which offers one of the most thoughtful research-oriented summaries emerging from the first Microplastics Exposure and Human Health Conference. In their recent piece, Li captures a key theme shared by scientists at the event: detection of micro- and nanoplastics in human tissues is now established, but <em>the meaning of that detection remains uncertain without long-term human data</em>.</p><p>Here&#8217;s a quote from the piece that captures both current evidence and the scientific caution around it:</p><blockquote><p><strong>&#8220;Scientists consistently emphasize that detection or accumulation reflects exposure, but does not automatically indicate disease. Establishing whether &#8212; and under what conditions &#8212; an exposure translates into adverse health outcomes requires careful interpretation across many layers of evidence.&#8221;</strong></p></blockquote><p>&#128073; Read it on <strong>microplasticsinsights.substack.com</strong>.</p><p>Featuring writers like Shu not only brings forward emerging perspectives on microplastics science but also helps connect communities across research, policy, and public health discourse &#8212; exactly the kind of bridge RightDose aims to build with you.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2><strong>&#128279; SOURCES &amp; LINKS</strong></h2><h3>Reports &amp; Research</h3><ul><li><p><em>Sri Lankan Study Reveals Microplastics in Everyday Cosmetics</em> &#8212; spectroscopic evidence of PE and PP microplastics in consumer cosmetics.</p></li><li><p><em>Microplastics in cosmetics and their impact on human health</em> &#8212; particle counts measured in rinse-off products and variability across product types.</p></li><li><p><em>Microplastics in cosmetics regulation and impact</em> &#8212; EU phase-out timeline for microplastics in personal care products.</p></li></ul><h3>Longevity &amp; Health Context</h3><ul><li><p><em>Microplastics &amp; Health: What We Know</em> &#8212; conference-informed overview of tissue detection and research challenges.</p></li></ul><h3>Community &amp; Substack</h3><ul><li><p><strong>microplasticsinsights.substack.com</strong> &#8212; informed, measured coverage from a community-focused author.</p></li></ul>]]></content:encoded></item><item><title><![CDATA[💄 The Beauty Edition — Unregulated and Unsafe]]></title><description><![CDATA[PFAS, heavy metals, and misleading clean beauty claims &#8212; what&#8217;s really in beauty products and how to choose safer swaps.]]></description><link>https://rightdose.substack.com/p/the-beauty-edition-unregulated-and</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-beauty-edition-unregulated-and</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 10 Feb 2026 13:10:22 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!XtTn!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h2>&#128202; <em>Data Drop &#8212; What the Science Really Shows</em></h2><p><strong><a href="/__u/rightdose.substack.com/p/the-rightdose-forever">PFAS (&#8220;forever chemicals&#8221;)</a></strong> are increasingly found in cosmetics &#8212; even when they aren&#8217;t listed on the label. According to a recent Food and Drug Administration report, <strong>51 different PFAS chemicals were intentionally added to 1,744 cosmetic product formulations</strong>, including makeup and skincare, yet most lack sufficient safety data to determine risk. Companies don&#8217;t have to test these ingredients for safety before use.</p><p>PFAS are used for <strong>water resistance, durability, texture</strong> and other performance effects, but their persistence and potential impacts on immune, reproductive and developmental systems have raised serious concerns.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p>Independent testing also shows that <strong>more than half of multiple cosmetics types (foundations, mascaras, eyeliners)</strong>contain PFAS &#8212; often without disclosure on ingredient labels &#8212; meaning consumers can be exposed daily without knowing it.</p><p>Heavy metals and other contaminants can also be present in color cosmetics, especially <strong>pigments and mineral-based makeup</strong>, where trace metals like lead or arsenic may occur through raw material impurities. The lack of transparency in labeling makes it hard for consumers to assess true risk.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!XtTn!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!XtTn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png" width="1408" height="768" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:768,&quot;width&quot;:1408,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1938555,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/186607329?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!XtTn!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f46008d-f013-46d7-a76f-8e0e138747ff_1408x768.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h2>&#129504; <em>Longevity Lens &#8212; Smarter Swaps for Beauty, Hair &amp; Makeup</em></h2><p><strong>Skincare</strong></p><ul><li><p>Choose products with <strong>fully disclosed ingredient lists</strong> and avoid vague terms like &#8220;fragrance&#8221; or &#8220;parfum.&#8221;</p></li><li><p>Look for brands that publish <strong>third-party lab results</strong> confirming the absence of PFAS and heavy metals.</p></li><li><p>Use <strong>EWG Skin Deep </strong>or similar databases to screen products before purchasing. <br><br>&#128150; <strong>P.S.</strong> RightShop is coming soon. More than a database, it&#8217;ll be your go-to for smarter beauty choices.</p><p><br>As a RightDose reader, you&#8217;re already on the beta list. Love this letter? Share it with friends and invite them to subscribe&#8212;they might also want an easy way to make smarter, clean beauty choices.<br></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-beauty-edition-unregulated-and?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-beauty-edition-unregulated-and?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p></li></ul><p><strong>Makeup</strong></p><ul><li><p>Avoid &#8220;long-wear&#8221; and &#8220;waterproof&#8221; formulas whenever possible &#8212; these traits are <em>strongly linked</em> to PFAS use for durability.</p></li><li><p>Select mineral makeup from transparent brands that <em>exclude fluorinated chemistries</em> and publish batch testing.</p></li><li><p>Consider <strong>tinted SPF or sheer color</strong> options that reduce pigment load while still delivering utility.</p></li></ul><p><strong>Haircare</strong></p><ul><li><p>Steer clear of products with complex synthetic &#8220;film-formers&#8221; or performance agents that may mask fluorinated components.</p></li><li><p>Simpler formulas with plant oils and known botanicals are less likely to carry PFAS substitutes.</p></li></ul><p><strong>General consumer rule:</strong> a product claiming &#8220;clean&#8221; doesn&#8217;t guarantee it is free of hidden PFAS or heavy metals &#8212; <em>look for verifiable testing or certification.</em></p><div><hr></div><h2>&#127775; <em>Community Spotlight &#8212; </em><span class="mention-wrap" data-attrs="{&quot;name&quot;:&quot;Michelle Wong&quot;,&quot;id&quot;:73946052,&quot;type&quot;:&quot;user&quot;,&quot;url&quot;:null,&quot;photo_url&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/66efd6f2-60c5-43e5-896c-4deed9ede6d8_144x144.png&quot;,&quot;uuid&quot;:&quot;3addd67c-7b3b-450b-88ae-a85a2b3064c9&quot;}" data-component-name="MentionToDOM"></span> </h2><p><strong>Lab Muffin Beauty Science Updates</strong> by <span class="mention-wrap" data-attrs="{&quot;name&quot;:&quot;Dr Michelle Wong&quot;,&quot;id&quot;:4896731,&quot;type&quot;:&quot;user&quot;,&quot;url&quot;:null,&quot;photo_url&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/49babde3-95d7-4269-a971-12fcb7248be0_867x867.jpeg&quot;,&quot;uuid&quot;:&quot;2f7d23b8-1185-4380-b4fb-8ca0dd0e6948&quot;}" data-component-name="MentionToDOM"></span> <br>Subscribe &#128073; https://thelabmuffinbeautyscience.substack.com</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!HYog!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 424w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 848w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 1272w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!HYog!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png" width="670" height="898" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:898,&quot;width&quot;:670,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:842412,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/186607329?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa05ca2eb-b87d-4c3a-8f5e-988aad0d3422_1006x1046.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 424w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 848w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 1272w, /__u/substackcdn.com/image/fetch/$s_!HYog!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06d86d7c-db92-4096-8df7-cf482a92df05_670x898.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Dr. Michelle Wong is a PhD cosmetic chemist and evidence&#8209;based beauty science educator whose Substack reaches tens of thousands of subscribers. Her newsletter demystifies formulations, explains how ingredients <em>actually</em> behave in skincare and makeup, and cuts through marketing hype to focus on real safety and efficacy. Topics range from <em>hidden PFAS and contaminants</em> to hydroxy acids and sunscreen filters, giving readers the science behind what&#8217;s in their products and how to make safer choices.</p><p>If you want a deeper, expert breakdown on why some beauty claims don&#8217;t hold up under scrutiny &#8212; and which ingredients are genuinely backed by evidence &#8212; this is a go&#8209;to resource for curious, critical minds. </p><p>Subscribe here: <a href="/__u/substack.com/@labmuffinbeautyscience">https://thelabmuffinbeautyscience.substack.com</a></p><div><hr></div><h2>&#128218; <em>Sources</em></h2><p><strong>PFAS &amp; cosmetics:</strong></p><ul><li><p>FDA report on PFAS intentionally added to cosmetic products: <a href="https://www.ewg.org/news-insights/news/2026/01/fda-reports-over-50-pfas-ingredients-intentionally-added-1700-personal?utm_source=chatgpt.com">https://www.ewg.org/news-insights/news/2026/01/fda-reports-over-50-pfas-ingredients-intentionally-added-1700-personal?utm_source=chatgpt.com</a></p></li><li><p>FDA press release on PFAS safety data gaps: <a href="https://www.fda.gov/news-events/press-announcements/fda-finds-insufficient-data-determine-safety-pfas-cosmetic-products?utm_source=chatgpt.com">https://www.fda.gov/news-events/press-announcements/fda-finds-insufficient-data-determine-safety-pfas-cosmetic-products?utm_source=chatgpt.com</a></p></li><li><p>FDA overview of PFAS in cosmetics: <a href="https://www.fda.gov/cosmetics/cosmetic-ingredients/and-polyfluoroalkyl-substances-pfas-cosmetics?utm_source=chatgpt.com">https://www.fda.gov/cosmetics/cosmetic-ingredients/and-polyfluoroalkyl-substances-pfas-cosmetics?utm_source=chatgpt.com</a></p></li><li><p>Study showing PFAS in many cosmetics without disclosure: https://www.ewg.org/news-insights/news-release/study-toxic-forever-chemicals-widespread-across-many-cosmetics-categories?utm_source=chatgpt.com</p></li></ul><p><strong>Ingredient transparency &amp; contamination:</strong></p><ul><li><p>Explanation of PFAS in cosmetics and personal care: <a href="https://www.cleanbeautyaction.org/post/pfas-in-cosmetics?utm_source=chatgpt.com">https://www.cleanbeautyaction.org/post/pfas-in-cosmetics?utm_source=chatgpt.com</a></p></li><li><p>How contaminants and heavy metals can be hidden: <a href="https://www.alibaba.com/product-insights/how-to-tell-if-your-clean-beauty-lipstick-contains-hidden-heavy-metals-or-pfas.html?utm_source=chatgpt.com">https://www.alibaba.com/product-insights/how-to-tell-if-your-clean-beauty-lipstick-contains-hidden-heavy-metals-or-pfas.html?utm_source=chatgpt.com</a></p></li></ul><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading The RightDose! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div>]]></content:encoded></item><item><title><![CDATA[🩷 Valentine’s Prep Edition — Human Connection, Longevity & Endocrine Disruptors in Romance Products]]></title><description><![CDATA[What real connection and healthy products have in common &#8212; insights from Dr. Eric Plasker on social bonds and quality of life, plus how to swap out hormone&#8209;disrupting beauty and intimacy products.]]></description><link>https://rightdose.substack.com/p/valentines-edition-endocrine-disruptors</link><guid isPermaLink="false">https://rightdose.substack.com/p/valentines-edition-endocrine-disruptors</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 03 Feb 2026 12:44:20 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!HsO0!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p></p><div><hr></div><h2>&#128171; <em>Community Spotlight &#8212; Longevity, Relationships &amp; Human Connection</em></h2><p>This week we&#8217;re spotlighting <span class="mention-wrap" data-attrs="{&quot;name&quot;:&quot;Dr. Eric Plasker&quot;,&quot;id&quot;:58622832,&quot;type&quot;:&quot;user&quot;,&quot;url&quot;:null,&quot;photo_url&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/32364dd3-82da-4bf7-9120-df68141f3806_144x144.png&quot;,&quot;uuid&quot;:&quot;aa6a820b-7ef7-4f86-8f19-248173321c3d&quot;}" data-component-name="MentionToDOM"></span> - <strong>100 Year Chiropractors</strong> &#8212;  founder of <em>The 100 Year Lifestyle</em> movement. Dr. Plasker brings a perspective that beautifully ties together <strong>connection, longevity, purpose, and wellness</strong> &#8212; reminding us that <em>relationships and community are not just nice to have, they are foundational to thriving across decades</em>. His work underscores a simple but powerful truth: <strong>your social bonds literally shape your lifespan and life quality</strong>.</p><p>In <em><a href="https://the100yearlifestyle.com/social-habits-and-life-spans/">Social Habits and Life Spans</a></em>, Plasker highlights research showing that mammals (including humans) who live in groups outlive solitary counterparts by a wide margin &#8212; and the support system you cultivate predicts not just <em>how long </em>you live, but <em>how well</em> you live.</p><p>That resonates deeply with us because Valentine&#8217;s Day isn&#8217;t just about romance products or fleeting rituals &#8212; it&#8217;s about <em>connection that supports health and longevity</em>. Partnerships, community, and supportive relationships are core longevity factors. As Dr. Plasker&#8217;s lens suggests, our bodies and brains are wired not just for survival, but for <strong>thriving through meaningful connection</strong>.</p><p>&#128073; Subscribe to <em>100 Year Chiropractors</em> on Substack here: https://100yearchiropractors.substack.com/ &#8212; and explore how connection, purpose, and wellness interplay on the long longevity arc.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!HsO0!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 1456w" sizes="100vw"><img 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data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/ec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:647,&quot;width&quot;:970,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:95953,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/186605056?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!HsO0!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fec9599a9-f14e-48a3-b250-8786e65cff93_970x647.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h2>&#128202; <em>Data Drop &#8212; Romance Products &amp; Endocrine Disruptors</em></h2><p>While human connection is foundational, <strong>the products we use to enhance intimacy and ambience can carry hidden chemical risks</strong>:</p><p><strong>Fragrance &amp; Endocrine Disruptors</strong><br>Many candles, perfumes, massage oils, and personal care products list vague &#8220;fragrance&#8221; ingredients &#8212; which can include <strong>synthetic chemicals linked to endocrine disruption</strong>. These compounds can interfere with hormonal systems, especially with repeated, dermal exposure.</p><p><strong>Hidden PFAS &amp; Makeup/Personal Care</strong><br>PFAS (so&#8209;called &#8220;forever chemicals&#8221;) have been found in a wide range of cosmetics and personal care products, even when not clearly labeled. These persistent compounds are under increasing scrutiny because of <em>potential hormone and immune effects</em>.</p><p><strong>Heavy Metals Contaminants</strong><br>Color cosmetics, skincare products, and intimate oils can contain trace heavy metals (like lead, arsenic, or chromium) through raw materials or pigments &#8212; and because cosmetic regulation doesn&#8217;t require comprehensive testing before market entry, consumers lack visibility into these risks.</p><p>All of which means: connection and ritual matter, but <strong>choosing cleaner products matters for your body&#8217;s neuroendocrine integrity too</strong>.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!mRHU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!mRHU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg" width="1456" height="794" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:794,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:558017,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://rightdose.substack.com/i/186605056?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_848, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_1272, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!mRHU!, /__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff3dbed8d-2c61-4c38-8d85-8c2e9dd2d47b_2816x1536.jpeg 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/valentines-edition-endocrine-disruptors?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/valentines-edition-endocrine-disruptors?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h2>&#129504; <em>Longevity Lens &#8212; Practical, Safer Swaps for Valentine&#8217;s Week</em></h2><p><strong>Ambience (Candles &amp; Scents)</strong><br>Swap paraffin and synthetic fragrances for <strong>beeswax, soy, or coconut wax candles scented only with pure essential oils</strong>. Or use <strong>diffusers with clear, single&#8209;ingredient essential oils</strong> that don&#8217;t mask undisclosed synthetics.</p><p><strong>Perfume &amp; Body Fragrance</strong><br>Choose <strong>non&#8209;toxic perfume brands with full ingredient disclosure</strong>. Look for transparent formulations that avoid undisclosed &#8220;fragrance&#8221; blends &#8212; these are usually the carriers of endocrine disruptors.</p><p><strong>Makeup &amp; Color Cosmetics</strong><br>Waterproof and long&#8209;wear makeup often incorporates PFAS for performance. Look instead for brands that explicitly <em>exclude fluorinated ingredients</em> and participate in <em>third&#8209;party testing or certification</em> programs.</p><p><strong>Intimate/Oils &amp; Lubricants</strong><br>Prioritize <strong>paraben&#8209;free, fragrance&#8209;free, glycerin&#8209;free</strong> lubricants with short, fully listed ingredient panels. For sensual oils, start with <strong>single&#8209;ingredient carrier oils</strong> (jojoba, fractionated coconut) and add just a drop of pure essential oils if desired.</p><p><strong>Rule of thumb:</strong> If a label says just &#8220;fragrance,&#8221; treat it skeptically &#8212; marketing claims like &#8220;clean&#8221; or &#8220;natural&#8221; aren&#8217;t regulated and often <em>don&#8217;t guarantee the absence of endocrine&#8209;active chemicals</em>.</p><div><hr></div><h2>&#128218; <em>Sources &amp; Further Reading</em></h2><p><strong>Longevity, Relationship &amp; Community Science</strong></p><ul><li><p>Dr. Eric Plasker &#8212; &#8220;Social Habits and Life Spans&#8221; (group living linked to longer, healthier lives): <a href="https://the100yearlifestyle.com/social-habits-and-life-spans/?utm_source=chatgpt.com">https://the100yearlifestyle.com/social-habits-and-life-spans/</a></p></li></ul><p><strong>Endocrine Disruptors in Romance &amp; Beauty Products</strong></p><ul><li><p>EWG overview on PFAS in personal care &amp; cosmetics: <a href="https://www.ewg.org/news-insights/news/2026/01/fda-reports-over-50-pfas-ingredients-intentionally-added-1700-personal?utm_source=chatgpt.com">https://www.ewg.org/news-insights/news/2026/01/fda-reports-over-50-pfas-ingredients-intentionally-added-1700-personal?utm_source=chatgpt.com</a></p></li><li><p>FDA information on PFAS ingredients and safety data gaps: <a href="https://www.fda.gov/cosmetics/cosmetic-ingredients/and-polyfluoroalkyl-substances-pfas-cosmetics?utm_source=chatgpt.com">https://www.fda.gov/cosmetics/cosmetic-ingredients/and-polyfluoroalkyl-substances-pfas-cosmetics?utm_source=chatgpt.com</a></p></li></ul><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><p></p>]]></content:encoded></item><item><title><![CDATA[The Anxiety–Toxin Link ]]></title><description><![CDATA[This week, we go deeper into how unseen exposures affect the nervous system, mood, and even anxiety &#8212; especially from food, pesticides, heavy metals, and everyday personal care products.]]></description><link>https://rightdose.substack.com/p/the-anxietytoxin-link</link><guid isPermaLink="false">https://rightdose.substack.com/p/the-anxietytoxin-link</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 27 Jan 2026 12:03:04 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!gWtr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F64dacef2-da95-484c-8b81-e53f4151c451_1408x768.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h2><strong>DATA DROP</strong></h2><p><strong>What science shows about toxins and nervous system stress</strong></p><p><strong>1) Toxins cross from environment &#8594; body &#8594; brain</strong><br>Many environmental contaminants &#8212; from heavy metals to industrial chemicals and pesticides &#8212; can reach the brain, disrupt signalling, and cause inflammation. This includes <strong>lead, mercury, PFAS, and pesticides</strong>. Chronic exposures may interfere with neurotransmitters and mood regulation.</p><p><strong>2) Environmental pollutants can worsen anxiety and depressive symptoms</strong><br>Studies suggest certain chemicals accumulate in the body and act on the nervous system. These compounds often trigger <strong>oxidative stress and neuroinflammation</strong>, both of which are linked with anxiety and depression.</p><p><strong>3) Everyday exposures matter</strong><br>Endocrine disruptors like <strong>phthalates and BPA</strong> &#8212; commonly found in plastics, personal care products, and food packaging &#8212; have been associated with changes in brain function and mood disturbances.</p><p><strong>4) Personal care products are part of the &#8220;total body load&#8221;</strong><br>Indoor air and cosmetic exposures contribute to the chemical burden your nervous system handles daily. Even synthetic fragrances and VOCs from candles, lotions, and sprays emit volatile compounds linked with mild neurological effects over time.</p><p><strong>5) Cumulative stress matters more than single exposures</strong><br>It&#8217;s not just one toxin &#8212; it&#8217;s how repeated small inputs can create a <em>chronic stress signal</em> in the nervous system. This kind of biological stress amplifies anxiety and affects resilience.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2><strong>LONGEVITY LENS: ACTIONABLE INSIGHTS</strong></h2><p><strong>1) Reduce your cumulative chemical load</strong><br>Focus on sources with the highest exposure frequency and duration:</p><ul><li><p><strong>Food contact &amp; packaging:</strong> Avoid frequent consumption of foods with high pesticide residues or PFAS-treated wrappers.</p></li><li><p><strong>Personal care:</strong> Swap products with <em>synthetic fragrances</em>, phthalates, and parabens for transparency-labeled alternatives.</p></li><li><p><strong>Indoor air quality:</strong> Improve ventilation, choose low-VOC materials, and minimize synthetic air fresheners.</p></li></ul><p><em>Psychological stress also compounds toxin effects.</em> Chronic worry about toxins can itself trigger biological stress responses that feel similar to anxiety &#8212; calm, clarity-focused reduction strategies are part of the longevity solution.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/the-anxietytoxin-link?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/the-anxietytoxin-link?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><p><strong>2) Strengthen nervous system resilience</strong></p><ul><li><p><strong>Movement &amp; breathwork:</strong> Stimulates vagal tone and reduces physiological stress reactivity.</p></li><li><p><strong>Sleep regularity:</strong> Supports neurotransmitter regulation and detox pathways.</p></li><li><p><strong>Diet for resilience:</strong> Nutrients like omega-3s, magnesium, and polyphenols support brain health and stress responses.</p></li></ul><p><strong>3) Shift from fear to signal recognition</strong><br>Distinguish between <em>actual biological stressors</em> and <em>anxiety about exposure</em>. Fear triggers stress pathways; clear, actionable steps reduce biological load <em>and</em> nervous system fight-or-flight signalling.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!gWtr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F64dacef2-da95-484c-8b81-e53f4151c451_1408x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!gWtr!, /__u/rightdose.substack.com/w_424, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_webp, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F64dacef2-da95-484c-8b81-e53f4151c451_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!gWtr!, 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/__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F64dacef2-da95-484c-8b81-e53f4151c451_1408x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p></p><div><hr></div><h2><strong>COMMUNITY VOICES</strong></h2><h3><em>Why environmental toxins should be part of the mood and anxiety conversation</em></h3><p>This week we&#8217;re highlighting a Substack essay from  <span class="mention-wrap" data-attrs="{&quot;name&quot;:&quot;Andrea Breaux&quot;,&quot;id&quot;:12495149,&quot;type&quot;:&quot;user&quot;,&quot;url&quot;:null,&quot;photo_url&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d22477e7-3da6-4d26-b900-afb5cf5e9207_889x889.jpeg&quot;,&quot;uuid&quot;:&quot;a27fbf65-b52d-4964-b45c-eb4ec943121f&quot;}" data-component-name="MentionToDOM"></span>&#8216;s <strong> </strong><em><strong><a href="/__u/substack.com/home/post/p-173978882?utm_source=chatgpt.com">Mind Your Air, Mind Your Mood</a></strong></em> &#8212; a thoughtful exploration of how pollution and environmental contaminants can influence brain health beyond lung function.</p><p>Andrea writes about how airborne and chemical toxins can cross protective barriers and trigger <strong>inflammation and neural stress</strong>, touching on the same pathways scientists link with anxiety and cognitive shifts. This perspective bridges lifestyle, environmental impact, and mental health in a way that many mainstream conversations miss.</p><p>Her work is a great complement to what we&#8217;re unpacking here: <em>mental wellbeing is not isolated from the world we live in &#8212; it&#8217;s a biological signal asking for clarity.</em></p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p><div><hr></div><h2><strong>BRINGING IT BACK TO YOU</strong></h2><p>This week&#8217;s insight is not about fear &#8212; it&#8217;s about <strong>context and agency</strong>.<br>Your biology integrates <em>every input</em> you give it: food, air, product exposures, stress, sleep, movement, and social connection.</p><p>And while you can&#8217;t control everything, reducing high-impact exposures and supporting neuro chemical balance <em>does </em>move the needle on anxiety and mood.</p><p>Next week, we&#8217;ll break down <strong>how to read between label claims that </strong><em><strong>sound</strong></em><strong> good but deliver little clarity &#8212; and how to spot meaningful signals instead.</strong></p><p>Until then, notice what&#8217;s <em>entered your life without registration</em> &#8212; and how you feel when it does.</p><p>&#8212; The RightDose</p>]]></content:encoded></item><item><title><![CDATA[Label Lies]]></title><description><![CDATA[And what your personal care products aren&#8217;t telling you either. Last week we said we&#8217;d expose what food labels conveniently leave out. Here it is.]]></description><link>https://rightdose.substack.com/p/label-lies</link><guid isPermaLink="false">https://rightdose.substack.com/p/label-lies</guid><dc:creator><![CDATA[Daniela Kelloway]]></dc:creator><pubDate>Tue, 20 Jan 2026 11:26:49 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!sjaB!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F96e6a582-7fc7-48b7-9ec6-e319e2e53daf_1408x768.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h2>DATA DROP</h2><p><strong>What food and personal care labels don&#8217;t have to disclose</strong></p><p>Most people assume labels exist to inform. In reality, they exist to comply.</p><h3>Food labels: what&#8217;s missing</h3><p>Food labels in North America <strong>do not require disclosure of</strong>:</p><ul><li><p><strong>Processing aids</strong> (chemicals used in manufacturing but not &#8220;technically&#8221; ingredients)</p></li><li><p><strong>Packaging-derived contaminants</strong> (like PFAS migrating from wrappers and boxes)</p></li><li><p><strong>Low-level pesticide residues</strong> below reporting thresholds</p></li><li><p><strong>&#8220;Natural flavors&#8221;</strong> &#8212; a legal black box that can contain dozens of compounds</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/subscribe"><span>Subscribe now</span></a></p></li></ul><p>Independent testing repeatedly finds:</p><ul><li><p>PFAS in fast-food wrappers, bakery bags, and microwave popcorn</p></li><li><p>Heavy metals (lead, cadmium) in rice, cacao, and some spices</p></li><li><p>Glyphosate residues in oats and wheat products</p></li></ul><p>These don&#8217;t show up on labels. Yet your body still processes them.</p><h3>Personal care labels: the quiet parallel</h3><p>The same loopholes exist in lotions, toothpaste, and sunscreen.</p><p>Labels often <strong>do not fully disclose</strong>:</p><ul><li><p><strong>Fragrance blends</strong> (which can hide phthalates)</p></li><li><p><strong>PFAS</strong> used for &#8220;smooth feel&#8221; or water resistance</p></li><li><p><strong>Preservative systems</strong> that release formaldehyde over time</p></li><li><p>Ingredient interactions that increase absorption through skin</p></li></ul><p>Translation:<br>If it touches your body daily, small exposures become chronic signals.</p><p>This is not about panic.<br>It&#8217;s about pattern recognition.</p><p></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" 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/__u/rightdose.substack.com/w_1456, /__u/rightdose.substack.com/c_limit, /__u/rightdose.substack.com/f_auto, /__u/rightdose.substack.com/q_auto:good, /__u/rightdose.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F96e6a582-7fc7-48b7-9ec6-e319e2e53daf_1408x768.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><h2>LONGEVITY LENS</h2><p><strong>Why tiny exposures matter more than you think</strong></p><p>Longevity isn&#8217;t built on extremes. It&#8217;s built on <strong>signal quality</strong>.</p><p>Your endocrine, immune, and metabolic systems respond to:</p><ul><li><p>Repeated low-dose inputs</p></li><li><p>Cumulative chemical load</p></li><li><p>Timing and frequency, not just toxicity</p></li></ul><p>Endocrine disruptors don&#8217;t need to &#8220;harm&#8221; you outright.<br>They just need to <strong>confuse your signalling</strong> &#8212; thyroid, estrogen, insulin, cortisol.</p><p>That&#8217;s why two people eating &#8220;the same diet&#8221; can feel wildly different.</p><p>It&#8217;s also why swapping <em>a few staples</em> often matters more than chasing perfection.</p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/label-lies?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/label-lies?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><div><hr></div><h2>ACTIONABLE SWAPS</h2><p><strong>The small changes that move the needle</strong></p><p>You don&#8217;t need to overhaul everything. Start where exposure is highest.</p><h3>Food</h3><p>Prioritize swaps for:</p><ul><li><p><strong>Oats, rice, flour, spices</strong> &#8594; choose brands with third-party residue testing</p></li><li><p><strong>Greasy packaged foods</strong> &#8594; reduce PFAS exposure from wrappers</p></li><li><p><strong>Microwavable convenience foods</strong> &#8594; frequent PFAS + plasticizers</p></li></ul><p>Simple rule:</p><blockquote><p>The more processed the food and the packaging, the less the label tells you.</p></blockquote><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/p/label-lies?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/p/label-lies?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share</span></a></p><h3>Personal care (the overlooked upgrade)</h3><p>Start with products that:</p><ul><li><p>Stay on skin all day (lotion, deodorant, sunscreen)</p></li><li><p>Are used daily (toothpaste, moisturizer)</p></li></ul><p>Watch for:</p><ul><li><p>&#8220;Fragrance&#8221; without disclosure</p></li><li><p>Waterproof / long-wear claims without ingredient clarity</p></li><li><p>Vague marketing language instead of transparent formulations</p></li></ul><p>You don&#8217;t need &#8220;clean everything.&#8221;<br>You need <strong>clear enough to choose wisely</strong>.<br><br>Tell someone who needs this info - </p><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://rightdose.substack.com/?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share&quot;,&quot;text&quot;:&quot;Share The RightDose&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/rightdose.substack.com/?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share"><span>Share The RightDose</span></a></p><div><hr></div><h2>COMMUNITY VOICE</h2><p><strong>A writer who gets this right</strong></p><p>This week&#8217;s community voice is <strong>Carter Williams</strong>, writer of <strong><a href="/__u/foodishealth.substack.com/">Food is Health</a></strong> &#8212; a Substack that sits at the intersection of food systems, public health, and the uncomfortable truths labels rarely tell.</p><p>Carter consistently explores how:</p><ul><li><p>Food labels reduce complex systems into comforting simplicity</p></li><li><p>Regulatory gaps allow contaminants, residues, and processing aids to remain invisible</p></li><li><p>Consumers are asked to &#8220;choose better&#8221; without being given the full picture</p></li></ul><p>One idea he returns to often:</p><blockquote><p>Labels don&#8217;t reflect how food is <em>produced</em>, only how it&#8217;s <em>marketed</em>.</p></blockquote><p>That insight mirrors what we&#8217;re seeing across groceries <em>and</em> personal care. Whether it&#8217;s PFAS in packaging or fragrance loopholes in skincare, the issue isn&#8217;t individual failure &#8212; it&#8217;s structural opacity.</p><p>If you want deeper context on how food policy, labeling, and health actually intersect, <strong><a href="/__u/foodishealth.substack.com/">Food is Health</a></strong> is worth following. It&#8217;s thoughtful, evidence-aware, and refreshingly uninterested in wellness theater.</p><p>Community clarity grows when we read beyond the box.</p><div><hr></div><h2>WHY THIS MATTERS (AND WHAT&#8217;S NEXT)</h2><p>This isn&#8217;t about distrust.<br>It&#8217;s about <strong>discernment in a system optimized for ambiguity</strong>.</p><p>At The RightDose, we believe:</p><ul><li><p>Clarity beats restriction</p></li><li><p>Patterns beat panic</p></li><li><p>Personal biology beats one-size-fits-all rules</p></li></ul><p>Next week, we&#8217;ll go deeper into <strong>how to read between the lines</strong> &#8212; and which claims are most likely to mislead even informed consumers.</p><p>Until then, notice what&#8217;s missing.<br>Your body already has.</p><p>&#8212;<br><strong>The RightDose</strong></p>]]></content:encoded></item></channel></rss>