Help prevent plaque buildup & reduce gingivitis in 1 week* with Listerine Clinical Solutions Gum Health Antigingivitis & Antiplaque Antiseptic Mouthwash! This refreshing icy mint-flavored oral rinse from Listerine, the #1 dentist-recommended mouthwash brand, immediately kills the germs that cause bleeding gums & inflammation. The ADA-accepted zinc infused mouthwash formula contains powerful & effective ingredients that help prevent hard to remove buildup on teeth, reduce plaque bacteria below the gumline* & works hard to prevent gingivitis. Tested by dentist & dental hygienists, this mouthwash helps maintain healthy gums for 12 weeks with continual use*. Adults & children 12 & older, use twice daily after brushing with toothpaste as part of your oral care routine. Vigorously swish 20 mL mouthwash at full strength (don't dilute) between teeth for 30 seconds & then spit out. Do not swallow the mouthwash.*versus brushing alone