This natural toothpaste is blended with Activated Charcoal and flavoured with organic Peppermint oil. Studies have shown Peppermint oil to be extremely effective at killing anaerobic bacteria, left untreated this bacteria can cause gum disease. The peroxide-free formulation is a great alternative to conventional whitening toothpastes: it remove surface stains naturally, without being harsh and abrasive to your teeth.