LISTERINE MOUTH WASH TEETH AND GUM DEFENCE 500 ML LISTERINE Mouth Wash Teeth and Gum Defence 500 ml provides long-lasting protection against bad breath, plaque, and gingivitis. With an alcohol-free formula, it combats bacteria and helps to keep your mouth healthy and fresh. Clinically-proven to kill germs that cause plaque and gum disease, it’s perfect for oral hygiene.