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Alpha Hydroxy Acid (AHA)

Glycolic Acid

One of the most effective and well-researched exfoliating acids available. Excellent for improving overall skin texture, brightness, and signs of photoaging when introduced gradually.

Clinical evidence
Not yet rated
Effectiveness (provisional)
5 out of 5
Typical concentration
Daily use: 5–10% Weekly treatments: 10–20% Professional peels: 20–70%
Suitable for
Normal Combination Oily Mature May be too irritating for very sensitive or compromised skin.
How often
Start 1–2 times per week and increase as tolerated.

Primary benefits

  • Smooths rough texture
  • Brightens dull skin
  • Fades post-inflammatory hyperpigmentation
  • Improves fine lines
  • Stimulates collagen production
  • Helps unclog pores

What it does

Derived primarily from sugar cane, glycolic acid has the smallest molecular size of all AHAs, allowing it to penetrate the skin efficiently. It exfoliates dead skin cells, improves texture, stimulates collagen production, and helps fade pigmentation.

Use with caution

No specific layering warnings recorded.

Pregnancy and breastfeeding

Low-strength topical glycolic acid is generally considered low risk, but users should consult their healthcare provider before use during pregnancy or breastfeeding.

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