Longevity UnmaskedLongevity Unmasked

Question 319 of 433

What actually works for skin at home?

Evidence grade (draft mapping)ARobust human trialsBLimited or small human studies
Plain unlabeled skincare jars on a sunny marble counter

The short answer

Sunscreen every morning and a prescription retinoid at night. Everything else is a distant third.

Tretinoin is the only cream approved for sun-damaged skin, with decades of trials showing smoother texture and new collagen. It costs little as a generic. It irritates at first, makes skin sun-sensitive, and must not be used in pregnancy.

“Exosome” serums and facials are sold as cosmetics; no exosome product is FDA approved for anything, and the studies are small and paid for by the makers. Machine facials that cleanse and hydrate feel pleasant and last a few days. A rapamycin cream showed interesting changes in one small study and is far from proven.

“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer

Evidence scope
ROBUST HUMAN TRIALS for sunscreen and tretinoin skin outcomes; LIMITED for most newer cosmetic claims.Evidence grade (draft mapping)ARobust human trialsBLimited or small human studiesPart 21, Q319 · Part sources
All of Part 21

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