This medicated formula is clinically proven to be effective. Nothing you can buy without a prescription is stronger than the 10% benzoyl peroxide in Clearasil. Clears up pimples fast: Clearasil goes to the root of the pimple to help dry up and clear up existing pimples and blackheads fast. Absorbs excess oil all day: With two special oil-absorbing ingredients, Clearasil soaks up excess oil all day long, giving you cleaner, clearer-looking skin. Use Clearasil StayClear Acne Defense Cleanser, Pads or Astringent for an effective pimple protection routine.