Soft bristles made from 100% castor bean oil. Usda certified 100% biobased. Bristles made in european union. The handle is made from organic bamboo. The box encasing the toothbrush is made from paper. Can be used for just as long as plastic toothbrushes. Usda certified biobased. Green american certified. Vegan. Bpa - free. Natural and non-toxic.