Colgate® Sensitive Maximum Strength Whitening Toothpaste provides 24/7 sensitivity protection and contains potassium nitrate, the FDA-allowed anti-sensitivity active ingredient. This whitening toothpaste helps restore the natural whiteness of your teeth and is formulated with an effective stain removal formula .Maximum level of anti-sensitivity active ingredient permitted by the FDA for an over-the-counter sensitive toothpaste with continued use and twice daily brushing vs non-whitening toothpaste