Reduce inflammatory acne lesions by 51% and non-inflammatory lesions by 33%.It improves problem prone skin and prevents future breakouts. A safe and effective alternative to benzoyl peroxide. Contains 1% salicylic acid in 5% Glycolic Compound*. * Glycolic Compound is a complex, pH-balanced mixture of glycolic acid, ammonium glycolate, purified water, and higher-molecular-weight oligomers of glycolic acid, with an approximate activity level of 60%, and is designated on product labels as the ingredients glycolic acid and ammonium glycolate.