Why does most mouthwash burn and irritate? It actually doesn’t have to hurt to be effective. With CloSYS Mouthwashes Adults Seniors and Teens can protect their mouth from harmful bad breath germs and freshen your breath without the painful burn. CloSYS is one of the first mouthwashes to receive the American Dental Association seal for reducing bad breath. This gentle but powerful mouthwash is perfect for all ages because its patented formula is pH balanced and so gentle you’ll actually use it longer for better results. A 30-second rinse in the morning and evening after each brushing is easy and all it takes to get great results. CloSYS Ultra Sensitive Mouthwash comes unflavored so it s like water and even tastes like water. Nothing overpowering or painful. Just a clean fresh soothing mouthwash you’ll actually use because CloSYS is the Gentlest Oral Care Ever.