Glycolic Acid — Skincare Ingredient
Glycolic Acid
Dissolves bonds between dead surface skin cells
Also known as: AHA · Alpha-Hydroxy Acid
What is Glycolic Acid?
Smallest alpha-hydroxy acid molecule — penetrates deepest into the epidermis, strongest surface exfoliation.
What Glycolic Acid Does
- Dissolves bonds between dead surface skin cells
- Improves texture, tone, and radiance over 4-12 weeks
- Stimulates collagen synthesis in upper dermis at 8%+ concentrations
- Fades surface pigmentation
Skin Type Compatibility
How well Glycolic Acid works for each skin type:
How to Use Glycolic Acid
Layering Glycolic Acid
How Glycolic Acid combines with other actives in your routine:
Glycolic Acid in Our Catalog
- La Roche-Posay125
- Neutrogena100
- COSRX74
- innisfree61
- Paula's Choice58
Browse Products with Glycolic Acid
Frequently Asked Questions
What is Glycolic Acid?
Smallest alpha-hydroxy acid molecule — penetrates deepest into the epidermis, strongest surface exfoliation.
What does Glycolic Acid do for skin?
Dissolves bonds between dead surface skin cells Improves texture, tone, and radiance over 4-12 weeks Stimulates collagen synthesis in upper dermis at 8%+ concentrations Fades surface pigmentation
Is Glycolic Acid safe during pregnancy?
Yes — Glycolic Acid is generally considered safe to use during pregnancy and breastfeeding. As always, consult your doctor about your specific routine.
What skin types is Glycolic Acid good for?
Glycolic Acid works well for Dull skin, Texture issues, Mild pigmentation, Mature skin.
How do I use Glycolic Acid?
Effective at 5-10% leave-on. Increases sun sensitivity — daily SPF mandatory. Start 1-2×/week, evening. Not for pregnancy.
What is the comedogenic rating of Glycolic Acid?
Glycolic Acid has a comedogenic rating of 0/5 — non-comedogenic, safe for acne-prone skin.
What is the irritation potential of Glycolic Acid?
Glycolic Acid has an irritation risk score of 3/5 — moderate — sensitive skin should patch-test.
What ingredients pair well with Glycolic Acid?
Glycolic Acid layers beautifully with: Niacinamide, Hyaluronic Acid, Panthenol.
What ingredients should I avoid mixing with Glycolic Acid?
Avoid using Glycolic Acid in the same routine layer as: Retinol, Salicylic Acid, Ascorbic Acid. Alternate days or use AM/PM separation.
Related Ingredients
Often used together with or similar to Glycolic Acid: