Oh mmyyyy gosh!!!! I seriously can't even believe how well this works and how gentle it is!!! I normally don't write reviews on anything....but if youre reading this I would highly recommend purchasing this. In my pic I've only been using for 1 week. Also, hows come nobody told me how yellow my teeth were???!! Shhessshh!! LoL. Darn coffee...how I love/hate you (coffee). I can't wait to see day 21!! Woot woot!