
The why
A leave-on 2% salicylic acid exfoliant for oily, congested skin, especially blackheads and rough texture. Redditors call it an HG, and studies found 2% salicylic acid worked about as well as adapalene; sensitive or dry skin can peel or sting.
One minus
Daily use can wreck the barrier: redness, peeling, and tightness
Good forOily Skin, Combination Skin

