Ingredient · INCI listed
Glycolic Acid (AHA)
Glycolic acid is the smallest alpha hydroxy acid, giving it superior skin penetration. It dissolves the bonds between dead skin cells, revealing smoother, brighter skin and stimulating collagen production at higher concentrations.
Evidence — Well-established
Data summary
Products containing
48
Most common in
17 products
exfoliants
Typical pairing
Salicylic Acid (BHA)
Evidence level
Well-established. Effective at 5-10% for home use (pH dependent). Higher concentrations (20-70%) used in professional peels. Consistent use over 12 weeks shows measurable improvement in texture, tone, and fine lines.
Verified reviewer
Where it shows up
