The Heart Behind Brush4Brush : We got a crazy (or brilliant) idea that selling bamboo toothbrushes to people like you would help us provide toothbrushes to children in need across our community and in turn, make a difference. We started our own company, Brush4Brush, where we donate one toothbrush for every toothbrush purchased. Want to make a difference like we do? Just purchase a toothbrush. It's really that simple.