Our clarifying salicylic acid serum is formulated to treat acne and prevent new blemishes from forming for healthier-looking skin. Plus, maltobionic acid helps soothe irritated skin. Gentle enough for daily use. To Use: Shake Well. Clean skin thoroughly before applying this product. When using this product apply only to areas with acne. Cover the entire affected area with a thin layer one to three times, daily. If dryness or peeling occurs, reduce application to once a day or every other day. Wear sunscreen during the day.