What does Glycolic Acid do in skincare?

Alpha-hydroxy acid with the smallest molecular weight of the AHA family, allowing relatively deeper skin penetration. Chemical exfoliant that supports the look of smoother texture and more even tone by loosening the bonds between dead skin cells.

What pH does Glycolic Acid work at?

Glycolic Acid is most effective at a pH of 3.0–4.0 (active range).

What pairs well with Glycolic Acid?

Glycolic Acid pairs well with: hyaluronic acid (after neutralization), niacinamide.

Is Glycolic Acid safe during pregnancy?

Glycolic Acid is generally considered safe during pregnancy. Always confirm with your obstetrician.

What should I not mix with Glycolic Acid?

Use with caution alongside: retinoids (same night — compounding irritation); benzoyl peroxide (same step); other AHAs/BHAs (same step).

The guides · Chemical exfoliants

Glycolic Acid

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Alpha-hydroxy acid with the smallest molecular weight of the AHA family, allowing relatively deeper skin penetration.

I · 2 min read

What it does

Chemical exfoliant that supports the look of smoother texture and more even tone by loosening the bonds between dead skin cells.

The facts

Effective pH: 3.0–4.0 (active range)
Category: Chemical exfoliants
Also known as: AHA, Alpha Hydroxy Acid, Glycolic
Pregnancy: Generally considered fine; ask your doctor

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Pairs with · fights with

Pairs well with

Hyaluronic Acidafter neutralization
Niacinamide

Conflicts

Retinoidssame night — compounding irritation
Benzoyl Peroxidesame step
Other AHAs/BHAssame step

Before you use it

Increases photosensitivity — use PM and wear SPF daily. At >10% concentration, buffer systems matter for comfort.

On the label

Listed as "glycolic acid" in INCI. Check the product pH if published — at pH >5, exfoliation is minimal regardless of stated percentage. 5–10% is the effective OTC range.

This guide is editorial, not medical advice. For a condition, a reaction or a medical question, see a dermatologist.