So far, so good. It really works! I’m a smoker and coffee drinker and have trouble with stained teeth. Usually only the dental hygienist can get the stuff off. I tried one tooth first just to see if it worked, so I could really see a difference. By golly, it cleaned it just as well had I got it done by the gal at the dentist.
Sincerely
John Pfeifer
Cincinnati, Ohio