Brighten your teeth safely and effectively at home while you sleep. Designed to deliver results with reduced sensitivity thanks to its built in desensitiser and activated gel formulation. As soon as the active ingredient Hydrogen Peroxide comes into contact with the tooth surface, it starts to form oxygen free radicals (oxygen bubbles) that penetrate and clean the tooth enamel through tubules. The gentle formula allows for deep break-down of pigmentation within the tooth, resulting in a natural whiter and brighter smile.