Sensodyne Rapid Action Whitening provides clinically proven relief from sensitive teeth in just 60 seconds. It relieves tooth pain when directly applying a pea-sized amount to a clean finger-tip and rub gently into each sensitive area (max twice per day) for 1 minute before brushing. That's because it is formulated to quickly create a barrier over sensitive areas of your teeth. When used twice daily, it provides long-lasting protection from sensitivity with dab-on application. , 1) Why choose Sensodyne Rapid Action Whitening Toothpaste? , Sensodyne Rapid Action Whitening Toothpaste contains fluoride for cavity protection, and provides relief for sensitive teeth and helps bring back the natural whiteness of teeth. , 2) How to use Sensodyne Rapid Action Whitening Toothpaste? , Sensodyne Rapid Action Whitening Toothpaste is a daily toothpaste.