The Ordinary Salicylic Acid 2% Solution is a water-based serum formulated to address skin texture irregularities and clogged pores. This targeted treatment contains 2% salicylic acid to exfoliate dead skin cells, clear congestion, and help improve the appearance of blemish-prone skin. As a beta hydroxy acid (BHA) product, this solution may increase skin's sensitivity to sun exposure. It is recommended to use sunscreen and limit sun exposure while using this product and for a week afterwards. The product should be applied once daily in the evening, either all over the face or on specific problem areas. A patch test is advised before first use. Not recommended for use on sensitive, peeling or compromised skin.