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Ingredient

Glycolic Acid

a type of AHA exfoliant · Korean label: 글라이콜릭애씨드

Glycolic acid is the smallest and strongest of the common alpha hydroxy acids (AHAs); it dissolves the bonds holding dead surface cells together to smooth texture, fade dark spots, and boost collagen.

Key facts

INCI name
Glycolic Acid
Also known as
AHA exfoliant · 글라이콜릭애씨드
Evidence grade
strong evidence
Reviewed

Similar ingredients

others that do something alike

Good to know

Photosensitizingcaution

Can make skin more reactive to UV. Wear sunscreen in the morning when using it.

What it does

strong evidence

Benefits

  • Exfoliates dead cells for smoother, brighter texture
  • Fades sun spots and post-inflammatory hyperpigmentation
  • Proven to increase collagen synthesis over time
  • Helps unclog pores and refine skin tone

Side effects

  • Stinging, redness or peeling, especially at higher strengths
  • Over-exfoliation if used too often
  • Increases skin's sensitivity to the sun (photosensitizing)

Who it's for

Dull, rough, sun-damaged or uneven-toned skin that tolerates exfoliation

Who should be careful

Sensitive, very dry or compromised-barrier skin; daily SPF is essential since AHAs increase sun sensitivity

Products with AHA exfoliant (51)

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Recent research

latest published papers we're tracking

All research on AHA exfoliant

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