The optic white Colgate is a game changer for real 😀😀my sons teeth 🦷 were yellow and he stole my Colgate for three days and his teeth were really white . I looked at him and I was like how come your teeth are soo white and he laughed at me and told me he stole my Colgate hahhah . Don’t think about buying it just ruuuun to get it . I give it a 10/10 .