Non-toxic. Silicone brush is made of food grade silicone raw materials, with heat preservation, insect prevention and dust; Silicone brush is made of oil press high temperature vulcanization molding, and according to the stable chemical properties of silicone raw materials, so it has the effect of high temperature resistance, 100% environmental protection and non-toxic, is a mainstream product with environmental protection concept on the silicone gift market, silicone products are loved by consumers.