Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant
The most-recommended leave-on BHA there is, and deservedly — a stated 2% salicylic acid at the right pH, in a lightweight liquid. The single best product for blackheads and clogged pores.
Strengths
- Stated 2% salicylic acid, formulated at an effective pH
- Oil-soluble BHA gets into pores where AHAs can't
- Fragrance-free, non-abrasive leave-on liquid
Trade-offs
- Start 2-3x weekly — daily from the outset can over-exfoliate
- Don't stack with retinol the same night when starting out
| Key active | Salicylic acid (BHA) |
|---|---|
| Stated concentration | 2% |
| Format | Watery liquid |
| Fragrance-free | Yes |
| Best for | Oily, Combination, Blemish-prone |
Formulation note. 2% salicylic acid at a functional pH. Being oil-soluble is the point — BHA clears the inside of pores, which is why it beats a scrub for blackheads.
Ingredients and claims read from the product listing, on July 17, 2026. “Not published” means the brand does not state that figure.




