Hello. Thank you for visiting our store, we buy things in a licensed pharmacy in the European Union. Salicylic acid 20 mg/ml - solution for external use, recommended for the treatment of acne. Acne is a chronic skin disease that affects the sebaceous glands. Salicylic acid has the ability to dissolve acne. It is used to treat both black (comedones) and white, as well as juvenile acne. The most famous use of salicylic acid solution - 20 mg / ml - is blackheads. Compound salicylic acid (Acidum salicylicum). Other ingredients: ethyl alcohol 96%, purified water. Usage Salicylic acid solution 20 mg/ml is used for external use. Salicylic acid solution - 20 mg/ml is not intended for use by children under 18 years of age. For acne, it is necessary to treat the damaged areas 2-3 times a day.