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.
Whether or not different biotin enriched shampoos can really enhance the total amount of biotin that gets incorporated into the hair isn't clear, but it is clear that having sufficient biotin around is important. So if you get a little bit extra from your shampoo, you can imagine how that would "tap off" the amount of biotin in that hair.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
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.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.