Not only does it kill germs, the refreshing mint flavour of LISTERINE Cool Mint makes it a crowd favourite for those who want to keep their breath feeling fresh all day. Used twice daily after brushing, this mouthwash provides 24-hour protection against germs that cause bad breath, plaque and gum problems. It reduces plaque 5x more than brushing and flossing alone. Its unique formula with 4 Essential Oils can deeply penetrate plaque to kill bacteria in the biofilm.