Colgate Advanced White Charcoal with Smartfoam and Activated Charcoal is clinically proven to effectively remove surface stains, restoring the natural whiteness of your teeth so you can get whiter teeth in 10 days. It also helps to prevent new stains so your teeth stay whiter for longerBENEFITSClinically provenNaturally whiter teeth in 14 days!Infused with activated charcoalFreshens breathFights cavities & removes plaqueEnamel safe for daily use.