The Waterpik Whitening Water Flosser delivers precision whitening while you water floss. It restores your natural whiteness in just 4 weeks by removing hard-to-reach stains that other products miss. It’s proven to remove an additional 25% more stains than brushing alone, provides all the clinical benefits of water flossing, and is as gentle as regular toothpaste.The Whitening Infuser Technology expertly mixes water with a gentle stain removal agent that safely restores your natural whiteness, removes plaque, and promotes healthier gums.