S alicylic acid, which is derived from the bark of willow trees, is a popular skincare ingredient known for its ability to treat acne and various skin issues. It is a beta hydroxy acid (BHA) that is also famous for its exfoliating properties. Salicylic acid works by penetrating the pores to dissolve oil and dead … Continue reading For The Glow: Can You Use Salicylic Acid And Niacinamide Together?