Preserve Eco Friendly Adult Toothbrush Made from Recycled Plastic Ultra Soft Bristles Preserve toothbrushes were developed with dental professionals to create a toothbrush that gets your teeth cleaner but minimizes your impact on the environment. The design includes a curved handle for those hard-to-reach places and a three-level bristle arrangement to massage your gums while brushing. And while the bristles are brand new the handle is made from recycled BPA free #5 plastic. BPA Free Materials. At Preserve we love beautiful products that work as well as they look.