Give your mouth that long-lasting, dentist-clean feeling with Listerine Ultraclean Arctic Mint Antiseptic Mouthwash. Clinically proven to kill the germs that cause bad breath, plaque, and gingivitis Ultraclean provides the same great benefits as Listerine Original Antiseptic with an added anti-tartar ingredient for cleaner, brighter teeth. When used twice daily for 30 seconds, the refreshing Arctic Mint flavor combined with Listerine 's Everfresh technology will keep your breath fresh.