Panoxyl Acne Wash Foam - 10% Benzoyl Peroxide Tough enough to fight even the worst breakout, panoxyl Maximum Strength Foaming Acne contains 10% Benzoyl Peroxide to clear acne quickly. Recommended by dermatologists, the powerful cleansing wash effectively kills acne-causing bacteria to remove existing breakouts and help prevent new blemishes from forming when used as part of a daily routine.