Andrew Huberman· PhD
some of these have by the way zinc oxide titanium oxide and chemical based components
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
some of these have by the way zinc oxide titanium oxide and chemical based components
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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zinc oxide and titanium dioxide reflect back UV light... this is very different than organic or chemical sunscreens which contain certain compounds... those chemicals in general don't serve to reflect back UV light but rather absorb UV light
is the mechanism for these two the same because um I was under the impression that the mineral-based inorganic sunscreens um reflected back UV rays — whereas the chemical-based sunscreens absorbed UV rays