Complete your oral care with Listerine naturals enamel protect. Use twice daily for stronger teeth. 96% natural origin and biodegradable formula*. *4% of ingredients for safety and performance. The antibacterial properties of essential oils helps leave the whole mouth clean and fresh. Kills up to 99% of plaque and bad breath causing germs left behind after brushing. Contains fluoride to help prevent cavities and strengthen teeth. Free from alcohol & dyes.