replenix benzoyl peroxide 5% acne wash replenix this advanced, medical-grade benzoyl peroxide cleanser helps to unclog pores, kill acne-causing bacteria and prevent future blemishes from forming. soap-free, non-drying and non-irritating, this powerful cleanser is scientifically formulated to maintain skin’s optimal ph balance while deeply soothing acne-prone skin. benzoyl peroxide usp: highly potent and solvent-free due to its sophisticated manufacturing process, this medical grade benzoyl peroxide is finely milled so there is no chalky residue left behind. it works effectively and quickly to eradicate acne-causing bacteria and prevent future blemishes.