*Now with bio-based bristles! Every toothbrush you've ever used is still on this planet, unless it's bamboo! You can now brush responsibly with one of our bamboo charcoal toothbrushes. Experience the whitening benefits of charcoal for an impeccably fresh and clean feeling. The medium/soft bristles are bio based - made from castor oil and infused with charcoal. Complete with naturally antibacterial, antimicrobial and odor resistant bamboo handles. Comes with a shape etched in, so there isn't any household confusion. For larger families, you can color in the shapes to distinguish. Recommended: Dentists recommend to replace every 3 months. How to Dispose: Can be demoted to household cleaning, upcycled to identify seeds in the garden, or composted. Packaging: Kraft paper box with UPC.