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

Transepidermal water loss: the signal for recovery of barrier structure and function - Journal of Lipid Researchpreclinical

Vitamin C: what it does, when to use it, what not to pair it with - BeautyTalks