Listerine Advanced Defence Gum Treatment Mouthwash Crisp Mint 6 Pack-This multipack of mouthwashes work by forming a protective shield around your gums that protects them from plaque and germs. It also works to treat gingivitis and easing the symptoms of sore or bleeding gums. It allows your gums to repair and restore themselves to a healthier state by preventing plaque from attaching to the tooth\'s surface. In this multipack you will get: 6 bottles of Listerine Advanced Defence Gum Treatment Mouthwash Crisp Mint (500ml each). Please note that results may vary.