Back to glossary

Actives

BHA

also known as Salicylic acid

An oil-soluble exfoliant that gets inside pores — for blackheads, congestion, and texture that won't smooth out.

What it actually does

Salicylic acid is the only common exfoliant that's oil-soluble, which means it can travel inside an oily pore and dissolve the gunk lodged there. It also dampens inflammation, which is why it's a workhorse for active acne, not just blackheads. Korean formulas often use betaine salicylate (a gentler derivative) at higher concentrations than the 2% you see in Western SKUs.

Who it's for

Oily, congested, or blemish-prone skin. Avoid if you're using prescription retinoids — the combination is too much for most barriers.

How to use it

Two to four nights a week to start, then build up. Always follow with moisturizer, and SPF the next morning is non-negotiable. Don't stack with AHAs the same night.

Products with bha

6 products

We match by ingredient mentions in product copy from our verified retailers. If we missed a product you know contains bha, let us know.

Related ingredients