When the protective layer of teeth (enamel) is worn away or gums recede, the dentine underneath becomes exposed. When the exposed dentine comes in contact with hot, cold, sweet or sour food and drinks, it can trigger a sharp short sensation called tooth sensitivity. Sensodyne Whitening is a daily fluoride toothpaste that helps protect against tooth sensitivity, while still providing the benefits of a regular paste like strong teeth and health gums. It also helps restore the natural whiteness of your teeth by removing stains and leaving you with a whiter smile. With twice daily brushing, you can enjoy your favorite foods and drinks without the worry of sensitive teeth. Sensodyne Whitening tooth paste is available in a 70 gm pack. Always follow instructions and guidance included on the pack before use.