Sensodyne Deep Clean toothpaste provides relief from painful tooth sensitivity often triggered by foods and drinks such as ice cream and cold water. Formulated with the active ingredient potassium nitrate, it works inside the tooth to help calm the nerves for 24-hour sensitivity protection.* Using our foam boost technology, Sensodyne Deep Clean fluoride toothpaste provides advanced cleaning and lasting freshness for your sensitive teeth.* Enjoy your favorite foods with Sensodyne, the number 1 dentist recommended brand for tooth sensitivity. *with twice daily brushing.