Evidence topic

Skin, Hair & Appearance

Browse appearance-related evidence with route and formulation kept visible.

How to read this page

Topic and body-area searches help discovery. They do not imply that evidence from one population, route or body site transfers to another.

Topical/cosmetic human evidence is limited and mixed; injectable evidence limited

Blend — research complete evidence gap; no direct clinical blend evidence

Approved medicine for defined indications; healthy-person anti-ageing use has limite…

Small direct human pharmacology signals; unapproved with major safety uncertainty

Small human cosmetic formulation-level evidence; isolated ingredient effect not esta…

Approved narrow indication with additional randomized human metabolic evidence