Dr. Tung's introduced America's first commercially available tongue cleaner in 1997, combining ancient Ayurvedic practice with modern dental science. Research shows tongue scraping removes around 30% more bacteria than a toothbrush. I love that their Smart Floss is completely free from PTFE and petrochemical wax, ingredients still found in a lot of so-called natural floss. I stock the full Dr. Tung's range.