Naturbrush Cotton and Bamboo Ear Buds is designed from bamboo, it is a biodegradable, antibacterial and organic product Bamboo: The NaturBrush bamboo is 100% MOSO, it comes from the Ningbo forests. It is ecological since it grows and thrives without fertilizers, pesticides and without any type of chemical additive. Biodegradable: It decomposes quickly favoring the soil as a natural fertilizer, introducing it into the soil in 90 days and providing fertilizer and regenerating energy. Antibacterial: Bamboo is antibacterial and antifungal due to a substance called "bamboo kun", an antimicrobial agent that helps the plant resist attacks by pests and fungi. Organic: Certified organic cotton, cultivated free of toxic substances and all kinds of pesticides and insecticides.