Builds increasing protection against painful sensitivity of the teeth to cold heat acids sweets or contact. Aids in the prevention of dental cavities. This toothpaste is formulated to help protect against acid erosion and also gently yet effectively remove stains helping restore teeth to their natural whiteness. As it contains fluoride it also provides all the benefits of a regular toothpaste. This toothpaste also contains potassium nitrate to relieve painful sensitivity in as little as two weeks. Helps protect the youthful appearance of teeth. Formulated with low abrasitivity balanced pH and an effective cleaning system. Hardens enamel.