Maximum strength. Cavity prevention. Keeps breath feeling fresh. Relieves painful sensitivity. ADA accepted, American Dental Association. 9 out of 10 dentists' recommended brand. It contains potassium nitrate clinically proven to reduce painful sensitivity. It provides fast relief within two weeks. It has fluoride for cavity protection. It keeps breath feeling fresh for hours. It has a great tasting mint flavor. No. 1 Dentist recommended brand for sensitive teeth (Dentists have been recommending Sensodyne for over 20 years. Brushing twice a day with Sensodyne builds a shield of protection against painful sensitivity. And, since Sensodyne has fluoride, it helps protect against cavities too). This product contains no sugar, like all ADA-accepted toothpastes. The ADA Council on Scientific Affairs' acceptance of Sensodyne Fresh Impact is based on its finding that the product is effective in helping to prevent and reduce tooth decay, when used as directed.