Ingredient index

Glycolic acid

An alpha hydroxy acid that loosens the bonds between surface corneocytes.

Use it: PM, 1-2x a week
Evidence: strong

Sources

Glycolic Acid Peels Versus Salicylic-Mandelic Acid Peels in Active Acne Vulgaris and Post-Acne Scarring and Hyperpigmentation - Dermatologic Surgeryrct