Nordics bamboo toothbrush charcoal has soft and pointed bristles that gently clean the spaces between your teeth without damaging any enamel the black bristles are processed with binchotan charcoal which helps to whiten teeth this charcoal has been used for centuries in asia for filtering drinking water and for teeth whitening it is completely safe and harmless in comparison with aggressive hydrogen peroxide it has no negative impact on the toothrsquos enamel and acts by absorbing