Environmental Bamboo Toothbrush - Medium. Made from biodegradable bamboo with medium BPA free bristles, this sustainable and Fair Trade toothbrush is durable and environmentally friendly. Bamboo is grown sustainably without using any nasty chemicals or pesticides, and is great as it is the fastest growing plant on earth, and incredibly abundant, re-generating itself naturally. Once youΓÇÖre finished with your toothbrush it can go in your regular bin as it will degrade quicker than plastic in a landfill, or it can also be composted if the bristles are removed first before recycling.