Uses ZhengLin Mouthwash quickly clean your mouth, help protect against germs growth,prevent bad breath, plaque&gingivitis, and promote secrete saliva, It is beneficial to oral a self-cleaning, prevent the oral disease which caused by dry mouth. Specially contains xylitol, strengthens teeth. Directions Twice a day after brushing your teeth with a toothpaste. Vigorously swish 15ml of rinse between your teeth for 30s and then spit out. Do not swallow the rinse. Do not eat or drink for 30 minutes after rinsing.Warnings Do not usein childrenunder12 years of age.Keep out of the reach of children. If spilled on fabrics, wash out immediately. Never Tested on Animals.Do not use if safety seal is broken or missing