Ingredient · AHA

Glycolic Acid

INCI: Glycolic Acid

A small AHA that exfoliates the surface for smoother, brighter skin.

Helps with

Texture, Dullness, Pigmentation, Uneven tone

Suits

Normal / balanced, Combination, Oily

Use with care

Increases sun sensitivity. Not ideal for very reactive skin.

Evidence
Well evidenced for surface texture.

Pairing

Combining Glycolic Acid

With Retinaldehyde — caution
Vitamin A and AHAs in the same routine can overload the barrier. Most people do better alternating them on different evenings.
With Retinol — caution
Vitamin A and AHAs in the same routine can overload the barrier. Alternate evenings rather than layering.
With Vitamin C — caution
Both are acidic and layering them can sting. Many people prefer vitamin C in the morning and acids in the evening.
With Salicylic Acid — caution
Two exfoliating acids in one routine is usually more than skin needs and is a common cause of a compromised barrier.
With Salicylic Acid — caution
Two exfoliating acids on the body in the same session can leave skin tight and reactive. Alternate days instead.