This medication is used on the skin to treat acne. This medication is a combination of adapalene (a retinoid) and benzoyl peroxide (an antibiotic and skin-peeling agent). This product may decrease the number and severity of acne pimples and promote quick healing of pimples that do appear. Adapalene works by affecting the growth of cells and decreasing swelling and inflammation. Benzoyl peroxide works by reducing the amount of acne-causing bacteria and by causing the skin to dry and peel off.