Our mouthwash contains Cornus officinalis extract and xylitol. It can strengthen the tooth surface, improve the resistance of tooth enamel, and effectively prevent tooth decay. The way to use it is simple: before use, gently shake the mouthwash bottle to ensure that the ingredients are evenly distributed. Take about 20 milliliters of mouthwash, place it in your mouth and rinse your mouth thoroughly for 30 seconds, making sure the liquid covers the surface of your mouth and teeth evenly. Finally, spit out the mouthwash. And it can remove the stains on the surface of the teeth to whiten the teeth and restore the luster of the teeth.