The 100% biodegradable, plant-based bristles are made from corn and tapioca and will LAST FROM 2 - 4 WEEKS. THESE ARE DEFINITELY STIFFER THAN OUR NYLON BRISTLES AND FRAY EARLY. The 'softness' of the bristles is actually determined by the diameter of the bristle without any consideration for the material it's made from. Crazy, right? Anyways, we think using a 100% biodegradable toothbrush is worth it, but if you're not quite there our nylon bristle toothbrushes will last as long as a conventional toothbrush.
100% bamboo handle
Wrapped in a 100% biodegradable/compostable cello made from wood and cotton pulp