Glycolic acid is an alpha-hydroxy acid derived from sugar cane that exfoliates by loosening bonds between dead surface skin cells, promoting cell turnover and improving texture, tone, and signs of aging. It is widely used in chemical peels and leave-on treatments at varying concentrations and pH levels.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation, stinging, or burning sensation | Common | Especially at higher concentrations, lower pH, or with frequent use. |
Erythema (redness) | Common | Typically transient following application or peels. |
Dryness and flaking | Common | Result of increased exfoliation. |
Increased photosensitivity | Common | Sun protection recommended during use. |
Post-inflammatory hyperpigmentation | Uncommon | More likely in darker skin types, particularly after peels. |
Contact dermatitis or allergic reaction | Rare | Reported in sensitive individuals. |
Chemical burns or blistering | Rare | Associated with high concentrations, prolonged contact, or improper use. |
Scarring | Very rare | Linked to severe burns or deep peels gone wrong. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.