Colgate Mouthwash - Max White One Sensational Mint 500 ml. Colgate Max White One Mouthwash with Whitening Accelerators in the form of micro crystals contains ingredients similar to those used by dentists. It safely removes stains and prevents tartar build-up to help you get one shade whiter in just one week. Regular use will help keep your teeth white for longer! Content: Colgate Mouthwash - Max White One Sensational Mint 500 ml