Sensodyne Tartar Control toothpaste is a product that helps fight tartar build-up and relieve tooth sensitivity. It contains active ingredients such as potassium nitrate and sodium fluoride, which work to relieve tooth sensitivity and fight against cavities. The toothpaste also contains inactive ingredients such as hydrated silica, sorbitol, glycerin, and titanium dioxide, among others. Positive reviews of the product include its effectiveness in reducing tartar build-up and sensitivity, while rare negative symptoms of an allergic reaction may include swelling of the mouth or face. It is important to follow the label and brush teeth thoroughly twice a day. The product is not for use by children under 12 years of age, unless on advice of a dentist or doctor. If irritation occurs, discontinue use and talk to a dentist or doctor as soon as possible.