Product information Binchotan Activated Charcoal Toothbrush by Purity Brush Give me the good stuff Binchotan Charcoal – natural antibacterial, antifungal and antiviral Ingredients Estimated by Purity Brush to be 90% binchotan charcoal, 10% Nylon-4 infused bristles (which biodegrade in approximately 4 months) and Moso bamboo handle Brand claims Protects teeth from germs – you can give additional protection to your teeth with …