Snapshot
- Overview
- An AHA that gently exfoliates for smoother, brighter-looking skin.
- Category
- Exfoliating, Brightening, Tone/Texture, Acne, Hyperpigmentation
- Type
- Exfoliant
Lactic Acid
Lactic acid is an alpha hydroxy acid, often fermentation-derived, used in cosmetic formulations. It exfoliates the skin's surface to smooth texture, promote a radiant look, and add humectant hydration in pH-controlled products.
Like this ingredient?
Our take
Is Lactic Acid a Good Ingredient?
Rated Good because it's a well-studied AHA that smooths texture and adds surface hydration when used in pH-controlled formulas. It carries a moderate risk of irritation and increased sun sensitivity, though, which is what prevents a higher rating.
What it does
Skin Benefits
Visibly refines rough patches and boosts luminosity for a fresher look. When balanced in formula, it can leave skin feeling dewier and more supple.
Where you'll find it
Uses in Skincare & Cosmetics
Found in AHA serums, exfoliating toners, masks, body lotions, and low-foam cleansers designed for periodic resurfacing.
Before you use it
Safety
Can sting or irritate and may increase photosensitivity, so introduce slowly and use daily sunscreen. Avoid use on compromised skin and be cautious when layering with other strong exfoliants.
Products with Lactic Acid
