Two blades – one smooth, one serrated – work together to thoroughly remove bacteria that build up on the tongue. Bad breath doesn’t stand a chance. Bad breath can come from bacterial coatings on the tongue, in the tongue fissures, as well in the interdental spaces. The CTC tongue cleaner is amazingly successful. Its anatomically correct shape reduces nausea and its effect can be seen and smelled. Success from the first time you use it.