Listerine Green Tea Mouthwash 250ml kills the germs that cause bad breath, plaque and gingivitis. Added fluoride keeps teeth strong and protects from cavities while the natural goodness of green tea helps to promote gum health with a less intense taste. Inspired by nature! Used twice daily Listerine® green tea, with fluoride, essential oils and green tea extract is proven to: Strengthen tooth enamel even in hard-to-reach places to help prevent cavities. Reduce and prevent plaque, a major cause of gum disease. Freshen breath with natural green tea taste.