Salicylic acid (aka BHA) isn’t just for acne, it turns out. The gentle leave-on chemical exfoliant is your first defense against blackheads and clogged pores as well as dull uneven texture. Swiping this on post-cleansing shrinks the appearance of pores while boosting overall radiance and hydration. Oh, and it fights fine lines. Sounds like a miracle potion, right? We’re not saying such a thing exists, but its best-selling status has us thinking, yeah.