CRYSTAL_CHARCOAL is a 100% natural teeth whitener. It not only whitens teeth but also strengthens teeth enamel, detoxifies the mouth and keeps your breath smelling fresh. It is a natural antioxidant which means it has the ability to pull toxins from the teeth’s surface. It has a deep affinity for toxins and once you rinse your mouth with it, toxins are extracted from enamel surface and your teeth have a white sheen shine. Charcoal used for teeth whitening does a dual job – brightens up your smile and balances the pH of cavities helping eliminate bacterial growth and germs.