Protect your mouth from germs with Cool Mint Listerine Antiseptic Mouthwash. Accepted by the American Dental Association, this mouthwash is clinically shown to reduce 52% more plaque and 21% more gingivitis than brushing and flossing alone. Adding a 30-second rinse to your morning and evening routines is all it takes to get 24-hour protection against germs that cause bad breath, plaque and gingivitis. Cool Mint Listerine Antiseptic Mouthwash leaves your mouth feeling intensely clean.