Help eliminate breakouts & redness with Neutrogena Stubborn Acne AM treatment. From a dermatologist-recommended acne brand, this daytime acne treatment is proven to help the size and redness of pimples in just 4 hours and visibly stop breakouts and redness throughout the day. The clinically proven formula contains 2.5% micronized benzoyl peroxide acne medication, a dermatologist recommended OTC acne ingredient, to penetrate deep into pores and kill acne causing bacteria at the source.