Xylichew Gum is sweetened with xylitol, a plant-source sweetener. Xylitol is a safe and natural sweetener made from Birch that promotes good health. Xylitol decreases plaque formation and adhesion, cuts off dental acid attacks, hardens tooth enamel and repairs small emerging cavities. It has a cooling effect in the mouth, leaves no aftertaste, and is an ideal sweetener for a gum.Peppermint Flavor.