Munch Bamboo Toothbrushes are more than a true sustainable product. They are also infused with charcoal which has many health benefits for your teeth and mouth. Made from sustainable bamboo, the bamboo toothbrush handle is 100% biodegradable. The toothbrush bristles have been infused with a premium activated charcoal which has been recognised for its antiseptic and detoxifying properties for thousands of years.