Packed with an extra punch of mint essential oil, Odol Extra Fresh Mouthwash Concentrate not only knocks out bad breath, but keeps your breath icy fresh. Like the regular Odol, it is meant to be diluted in water (just a few drops!). A high proportion of aromatic oils battles bad breath deep into the throat, fights bacteria, neutralizes sulfur compounds in the mouth, and helps keep your mouth`s flora in balance.