Serums & Treatments3 min read
Paula's Choice 2% BHA Liquid Exfoliant Review: Still the Pore-Clearing Standard?
A $37 leave-on salicylic acid that has barely changed since 2000. It is the cheapest sensible way to loosen blackheads and smooth enlarged-looking pores, as long as you build up slowly and keep to sunscreen.
Our verdict
This is still the leave-on salicylic acid we would point most people with blackheads and bumpy texture toward: a simple 2% formula at a low pH, with green tea and no fragrance, for $37. It works over weeks rather than overnight, can dry out or sting if overused, and cheaper salicylic toners exist, but few are as consistent.
Best forOily or combination skin with blackheads and congested pores
What we liked
- 2% salicylic acid at a pH around 3.5, in the range where it exfoliates
- Simple formula with green tea extract and no added fragrance
- Works gradually on blackheads and rough texture without scrubbing
- One bottle lasts months because you use a few drops on a cotton pad
What held it back
- Can dry, sting or flake skin if used twice daily from the start
- Results build over weeks, not days, and fade if you stop
- Makes skin more sun-sensitive, so daily sunscreen is a must
- Not suited to very dry or compromised skin barriers
Salicylic acid is not a secret. You can buy it in a dozen toners and serums, many of them cheaper than this one. So why is a bottle that has been on sale since 2000, and still sells around 1.25 million units a year according to Grazia, our default answer for blackheads? Because it is boring in the right ways: one active at a useful strength, a pH where it works, and nothing in the formula that gets in the way.
What 2% BHA actually does to a pore
Salicylic acid is oil-soluble, which lets it get inside a pore and loosen the dead skin and sebum packed there. That is the difference from a glycolic acid toner, which works mostly on the surface. For blackheads on the nose and chin, and for skin that feels bumpy rather than dull, that is the right tool.
The ingredient list is short: water, methylpropanediol, butylene glycol, salicylic acid, polysorbate 20, green tea leaf extract, sodium hydroxide and tetrasodium EDTA, as listed by Skincarisma. The sodium hydroxide is there to set the pH, which sits near 3.5. That number matters. A salicylic acid product at a higher pH does far less, and many cheap toners miss it.


