The Ordinary Salicylic Acid 2% Solution is a targeted BHA (beta hydroxy acid) exfoliating serum formulated to clear congested pores, reduce blemishes, and smooth skin texture. The main active is salicylic acid (2%) — a powerful exfoliant that goes deep into pores to dissolve oil, dead skin cells, and buildup that can lead to blackheads, whiteheads, and breakouts.