Yaweco makes safe personal care products. Without phthalates, plasticizers and bisphenols, but also other substances that do not belong in your mouth. In addition to the toothbrushes, Yaweco also makes floss from pure silk and natural wax. It is softer than conventional nylon floss made with synthetic wax. Silk is a natural, soft material with a porous surface, making it visibly easier to clean than nylon. The floss holder contains an additive that ensures that it composts in an organic environment within a few years.