Set of 2 For daily preventative gargling against hay fever in the coming season. For the prevention of periodontal disease and bad breath. For the prevention of influenza and coronavirus. This is a truly wonderful product. The highest grade KshKsh mouthwash, born for professionals. It is unflavored and odorless, and extremely safe, being very close to water. By adopting a higher concentration of MA-T System® than other similar products, it can be used by anyone, and can care for those who are sensitive to stimulation and fragrance. It is truly a mouthwash for professionals.