Listerine freshburst 500ml mouthwash adding a 30 second rinse with listerine freshburst antiseptic mouthwash to your morning and nighttime routines is all it takes to get 24 hour protection against germs that cause plaque and gingivitis for a refreshing way to fight germs listerine freshburst mouthwash was shown in a clinical study to reduce 52 more plaque and 21 more gingivitis than brushing and flossing alone brushing only cleans 60 of the surfaces of your teeth leaving plaque bacter