Our Mouthwash for Whitening has been specially formulated to give you all the oral care benefits you need with added whitening power. Containing active seaweed particles and hydrogen peroxide, our White Teeth Wash rejuvenates the oral tissues while ensuring teeth whitening effects. The self-filling lid ensures you only fill the correct amount of mouthwash should be used twice daily, as part of your oral care regime. Self filling lid. Alcohol free. Contains Irish Seaweed and Hydrogen Peroxide for added whitening power.