LISTERINE Antiseptic is a daily mouthwash that is clinically proven to kill germs that cause plaque, bad breath and the early gum disease gingivitis. LISTERINE Antiseptic kills up to 99.9% of germs that cause early gum disease left behind after brushing. There are many LISTERINE products that provide different oral care benefits. Find the one that’s right for you: https://www.listerine.ca/products.