Sensodyne Pronamel Intensive Enamel Repair Toothpaste for Sensitive Teeth and Cavity Protection features an advanced enamel care formulation proven to help actively repair and protect tooth enamel while effectively removing stains to help restore teeth to their natural whiteness. Many of the foods and drinks you enjoy contain acids that can wear away the hard enamel coating of your teeth. Developed with potassium nitrate and sodium fluoride, this sensitive toothpaste strengthens and rehardens weakened enamel and provides lasting relief (1) from sensitivity. Whether it's a sharp shock or a twinge of pain from hot or cold drinks and food, Sensodyne Pronamel toothpaste makes it easier to manage your sensitive teeth. This superior strengthening of enamel also helps prevent cavities, whiten teeth and freshen breath with a refreshing arctic breeze flavor. The convenient four-pack keeps you stocked with enamel toothpaste. For sensitivity protection, apply this enamel protection toothpaste in a 1-inch strip on your toothbrush, and brush twice a day every day. Get lasting protection from tooth sensitivity with Sensodyne Pronamel. (1) With twice daily brushing.