BEAUTYTALKS

Ingredient index

Vitamin C

An antioxidant that also inhibits pigment transfer; unstable in water at high pH.

Use it
No standard schedule
Evidence
strong

Sources

  1. Sunscreen use and prevention of photoageing: long-term follow-up - JAMA Dermatologysystematic review
Vitamin C: what it does, when to use it, what not to pair it with - BeautyTalks