The Receipt
- 01A softer AHA. Good for dry, rough skin; still needs sunscreen.
Education, not a diagnosis. If something changes quickly, hurts, bleeds, or worries you, see a dermatologist.
Ingredient Receipt · Exfoliants
Lactic acid (AHA)
INCI: Lactic Acid
Lactic acid exfoliates like other AHAs but is often better tolerated, and it hydrates too. How it compares to glycolic acid and how to use it.
- Texture & pores
- Dryness
01 · In plain English
If glycolic acid stings, lactic acid is often the next suggestion. It’s an AHA with a larger molecule and some humectant properties.
02 · What it does
Like other AHAs, lactic acid loosens surface dead cells. Its larger molecule tends to penetrate more slowly than glycolic acid, which is why many people find it gentler.
It’s also part of the skin’s own natural moisturizing factor, which is one reason it appears in moisturizers for very dry or rough skin.
03 · Who it’s for
- Dry or sensitive skin that wants gentle exfoliation.
- Rough, flaky patches on the body.
04 · What the evidence says
- Smoother texture and less flaking.limited evidence
05 · Myths, checked
“Gentle means you can use it every day at any strength.”
It’s still an acid. Higher strengths and daily use can irritate, and the sun-sensitivity advice for AHAs still applies.
insufficient evidence
06 · Insufficient evidence
- Claims that lactic acid alone fades dark spots quickly.
07 · How to use it
- A few evenings a week to start, then moisturizer.
- Daily sunscreen while using any AHA.
08 · Pairs well / go carefully
Pairs well with
Go carefully with
- Retinoids or other acids on the same night while starting.