A tongue cleaner is the best way to remove all the gunk and debris that collects on the surface of your tongue, particularly over night. It safely cleans and allows the active ingredients in our toothpaste to penetrate the surface of your tongue, helping to quickly reach the bacteria responsible for bad breath, gum disease, and cavities. For best results, use by first placing any of our toothpastes on the cleaning head and GENTLY stroking your tongue from back to front.The trick with tongue scraping is that you first must remove the mucus layer from your tongue, THEN apply the toothpaste to the back of your tongue. This allows the toothpaste to penetrate beneath the surface of your tongue where the anaerobic bacteria thrive. Unless you remove the mucus layer first, you will NOT be able to reach these bacteria.