Listerine Green Tea Mouthwash With Fluoride To Keep Natural Tooth Strength. Fights Plaque To Promote Gum Health. Inspired By Nature! Used Twice Daily Listerine Green Tea, With Added Fluoride, Essential Oils, And Green Tea Extract Is Proven To: Strengthen Tooth Enamel Even In Hard To Reach Places To Help Prevent Cavities. Fights Germs That Cause Plaque. Freshen Breath With Natural Green Tea Taste. Especially Effective When Used Morning And Evening After Brushing. Pour 20Ml (4*5 Ml Teaspoonfuls) Into A Glass, Rinse Around Teeth And Gums For 30 Seconds, Then Spit Out. Use 10Ml For Children Between 6 And 12 Years Old.