Product DescriptionContinue to experience proven results at home with these Replacement Brush Heads for your ProX by Olay Advanced Cleansing System or Microdermabrasion Plus Advanced Cleansing System. For best results, ProX by Olay Replacement Brush Heads should be changed every 3 months (or sooner if bristles become deformed). It's easy – just press the brush head onto the connection pin until it locks into position with a click. These soft bristle facial brush heads can be used with a broad range of Olay cleansers. Just rub facial cleanser onto your skin and let the power of the ProX by Olay facial cleansing brush go to work. Each rotation gently exfoliates and cleanses hard-to-remove makeup, leaving your face clean, exfoliated and primed for hydration. In fact, the ProX by Olay Advanced Cleansing System is designed to maximize the immediate hydrating effectiveness of your anti-aging moisturizer.