The Derma Co. 2% Salicylic Acid Serum is a multitasking formulation that treats acne, unclogs pores, and prevents skin damage. Introduce this skincare BFF to your regimen and you’re sorted! The combination of 2% Salicylic Acid & Witch Hazel exfoliates the pores’ walls to prevent the appearance of whiteheads and blackheads. With no more sebum in the pores, it eventually stops the formation of acne.