Quinoderm 5 Cream Quinoderm 5 Cream contains a special formulation of Benzoyl Peroxide & an added antimicrobial to help its efficacy of active ingredients. Quinoderm 5 Cream has been in use for the treatment of problem skin/acne for more than 40 years. Products containing Benzoyl Peroxide is generally accepted as the most effective treatment for mild to moderate acne. Ingredients Active ingredients: Benzoyl Peroxide (5%) & Potassium Hydroxyquinoline Sulphate (0.5%). Directions Apply thinly over the entire of the affected area 2 or 3 times a day.