Ingredient
AHA
Scientific name: Lactic Acid · Gentle exfoliation, hydration
Lactic acid is an AHA that exfoliates the surface while also drawing in water, so it smooths texture without leaving skin as dry as some acids can. That dual action makes it a favourite for drier and mildly sensitive skin that wants a brighter, softer finish.
Gentler AHA; also a humectant.
Good for
Caution
Photosensitizing. SPF mandatory.
Best Korean products with AHA
No published products use this yet.
Good fit for
- • Dry or dull skin that wants gentle exfoliation
- • Rough texture and uneven tone
- • Anyone who finds glycolic acid a little too strong
Worth skipping if
- • Very reactive skin may prefer mandelic acid or a PHA
Frequently asked questions
› What does lactic acid do?
Lactic acid exfoliates the surface to smooth texture and brighten tone, and it also acts as a humectant, so it hydrates as it works. That makes it gentler on dryness than many other acids.
› Is lactic acid good for dry or sensitive skin?
Yes. Its hydrating, milder profile makes it a strong choice for drier and mildly sensitive skin that still wants the benefits of an AHA.
› How often should I use lactic acid?
Start two to three evenings a week and increase as tolerated. Use sunscreen daily, since AHAs make skin more sun-sensitive.
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