Why use Sensodyne Rapid Relief Sensitive Toothpaste? It's a fast way to relieve sensitivity pain and help stop it coming back. Its unique formula acts to quickly create a barrier over sensitive areas of your teeth, clinically proven to provide speedy relief from tooth sensitivity pain.What is tooth sensitivity? Sensitivity occurs when the dentine underneath the tooth enamel and gums becomes exposed. When exposed dentine comes into contact with hot or cold, sweet or sour (or even your toothbrush!), it can trigger the nerve causing a short, sharp pain.With twice-daily brushing, Sensodyne Rapid Relief Sensitive Toothpaste builds ongoing protection from the pain of sensitive teeth. It also helps to whiten enamel and prevent tooth surface staining. Sensodyne Rapid Relief is suitable for adults and children over the age of 12 for tooth sensitivity relief, and has all the benefits of a regular fluoride toothpaste.Dentist recommend the Sensodyne brand.Dentist recommended brand, With fluoride, Clinically proven relief and daily protection for sensitive teeth, Daily fast relief toothpaste, Fast relief and long lasting protection