Bristles: Soft Bamboo toothbrushes are eco-friendly, unlike a plastic brush which in-evidently has more likelihood of landing up in a landfill, a bamboo toothbrust is bio-degradable. Which means, post usage you can just plant it in your backyard garden and it will take care of itself. What sets us apart from all other Bamboo Toothbrush manufacturers is that our bristles are made with activated charcoal infusions. This makes the bristles partially bio-degradable too. That apart, Charcoal tips keep the bristles naturally germ free. For longer usage take proper care, a natural bamboo toothbrush will last as long as any plastic toothbrush. It's suggested you rinse your toothbrush after cleaning your teeth and keep it dry. Dentists recommend replacing your toothbrush every 2 to 3 months or when the bristles have frayed out of shape. Dont forget to sport your Naturally happy Smile after using this product.