Fights tartar & whitens teeth. Less mess! Neat squeeze dispenser. The neat squeeze dispenser has a unique inner bag that empties itself as you squeeze in the middle. When the package gets lighter and is harder to squeeze, it's time to buy more Crest. Fights Tartar - Special tartar blockers provide clinically proven effective tartar prevention; Whitens Teeth - With cleaning action that gently removes surface stains and helps prevent yellow tartar build-up. For healthy teeth, brush twice a day, floss daily and visit your dentist regularly.