Achieve 3x healthier gums in 1 week* with LISTERINE® Clinical Solutions Gum Health Antigingivitis Antiseptic Mouthwash. Helps prevent dental plaque buildup & immediately kills germs for healthier gums*. This zinc infused mouthwash immediately kills germs that cause bleeding gums and gum inflammation and is LISTERINE®’s best mouthwash for gingivitis and gum disease.