Our Purple Brightening toothpaste contains glycerin, xylitol and sorbitol. It can neutralize the yellow surface of the teeth and restore the natural whiteness of the teeth. The powerful formula penetrates deep into the tooth surface. The way to use it is very simple: wet the toothbrush and squeeze the right amount of toothpaste on the toothbrush. Brush all teeth. Remove stubborn stains accumulated over a long period of time and improve brightness.