Differin acne-prone skin patches visibly improves skin in as little as one use. These patches, formulated with salicylic acid, gently exfoliates for all skin types. Dermatologists have tested these clear, easy-to-peel patches. Each box contains 36 patches that are designed to be waterproof and sweatproof. These ultra-thin patches works fast to flatten, soothe, and protect the acne area.