Crest Multi-Care plus Extra Whitening helps keep teeth health and feeling clean all over, and helps your natural whiteness come through. Its special formula foams in between teeth and in tiny crevices to help fight cavities and visible tartar. And it contains a special enamel-safe polishing ingredient to help gently polish away stains. You will love this special combination because it gives you tartar and cavity protection you trust from Crest, and leaves your teeth felling slick and smooth and your breath feeling refreshed. Two chamber pump system - The Crest MultiCare plus Extra Whitening dispenser actually has two chambers inside to store the paste and gel separately, having them combine the instant you dispense the toothpaste. When pump is empty, save money and use the easy-to-use Crest MultiCare plus Extra Whitening Refill.