Sensodyne Whitening toothpaste helps remove stains for a whiter smile as it provides daily protection for sensitive teeth.The toothpaste formulation with potassium nitrate and sodium fluoride delivers sensitive teeth whitening by polishing the surface stains.It provides lasting sensitivity protection and 24/7 protection against the causes of tooth sensitivity while restoring the natural whiteness of your teeth. The toothpaste formulation with potassium nitrate and sodium fluoride delivers sensitive teeth whitening by polishing the surface stains. It works deep inside the teeth to build soothing protection around the nerves, decreasing sensitivity in as little as two weeks with twice-daily brushing. For best results, brush for two minutes, twice daily.