At a glance
Texture — Light lotion
Key Active — Lactic acid / ammonium lactate 12%
Best For — Keratosis pilaris, rough or bumpy skin, very dry body skin
Price Tier — $
What stands out
There's a specific reason dermatologists reach for this one for keratosis pilaris, and it's worth understanding.
KP skin is dry and clogged at the same time. So it needs both exfoliation (to clear the keratin plugs) and moisture (because it's dry and easily irritated). Most exfoliants only do the first, and leave skin drier — which makes KP look worse.
Lactic acid is unusual: it does both. It's an AHA, so it exfoliates — but it's also a humectant, meaning it draws water into the skin. That combination is exactly what KP needs, and it's why lactic acid beats glycolic acid here. Glycolic exfoliates more aggressively but doesn't hydrate, so it tends to irritate KP skin.
It's gentle enough for daily use, cheap, and it works on rough, dry skin anywhere — elbows, knees, heels, shins.
Start here before anything harsher.
Watch out for
It stings on broken or freshly shaved skin. Don't apply straight after shaving.
It takes weeks. KP is chronic — you're managing it, not curing it. Stop using it, and the bumps come back.
Sun sensitivity. AHAs make skin more sun-sensitive. Use sunscreen on exposed areas.
Don't scrub as well. People often add a harsh scrub on top, which inflames KP and makes the redness worse. Let the acid do the work.