Kills germs that cause bad breath, plaque & the gum disease gingivitis. Clinically proven. Kills germs by millions on contact. Use Vanilla Mint Listerine Antiseptic twice daily to help: Prevent & reduce plaque; Prevent & reduce gingivitis; Freshen breath; Kill germs between teeth. The ADA Council on Scientific Affairs' acceptance of Vanilla Mint Listerine Antiseptic is based on its finding that the product is effective in helping to prevent or reduce gingivitis and plaque above the gumline, when used as directed. Council on Scientific Affairs, American Dental Association.