Toothbrush Antibacterial Nano-b with self-cleaning bristles enriched with gold and bamboo activated charcoal. The bristles are arranged in a double row, allowing for deeper penetration into the interdental spaces when pressure is applied. The tips of the bristles are rounded, preventing scratches and micro-cuts on the gums and tooth enamel. Nano-b toothbrushes are packaged in a reusable vial. After opening, remove the label from the cap to allow the vial to be ventilated.