Mantra Kind uses sustainable Moso bamboo, also knows as winter bamboo for our toothbrushes and cutlery set, which is not consumed by pandas. This bamboo is 100% biodegradable. The bristles on our toothbrushes are made from bamboo fibre and BPA and petroleum free Nylon which are recyclable when removed with pliers or tweezers. This is less impactful than single use plastic toothbrushes that currently dominate the market.