LISTERINE Zero gives a cleaner & fresher mouth than brushing alone. Removes up to 97% of germs left after brushing. 12 hour germ protection. Our Four Essential Oils: No other branded mouthwash offers this unique, four-ingredient formula that penetrates to reduce plaque in depth and help keep your mouth clean and healthy. Zero Alcohol. Milder Taste. Flavour - Mild Mint. Pack size - 500 ml.