Did you know Brushing only covers 25% of your mouth. Germs left behind in your mouth may cause bad breath plaque and gum problems. Listerine Mouthwash reaches all parts of your mouth to remove 99.9% germs and reduce gum problems in 2 weeks. Our unique formula with 4 Essential Oils deeply penetrates to remove the bacteria in the plaque biofilm. For best results rinse with undiluted 20ml twice a day for 30 seconds.