Thank you for viewing. This is the well-known ConCool F mouthwash. It is effective in preventing the development and progression of tooth decay, preventing gingivitis, preventing periodontitis, and preventing bad breath. Just add a few drops to water and gargle to sterilize the bacteria in your mouth that cause tooth decay and periodontal disease, and it is effective in preventing bad breath. It has a mild, refreshing mint flavor. Chlorhexidine gluconate (a bactericide) contained in ConCool F inhibits the growth of bacteria that cause tooth decay, periodontal disease, and bad breath for up to 12 hours. Please refrain from purchasing if you are concerned about storage at home.