It is mainly polysiloxane and its derivatives, the English names are Silicone, Dimethicone, Polydimethylsiloxane, Cyclopentasiloxane, etc., through the introduction of functional groups, change of structure, emulsification and other methods, the daily use of silicones in liquid (silicone oil and emulsion), gel , Solid (silicone wax), resin and other forms. Good affinity with the skin, good compatibility with the substrate, good hydrophobic and breathability, resistance to chemical media erosion, moisturizing but not greasy and other unique properties. Silicone-containing cosmetics can greatly improve their original properties while retaining their original properties. Enhance its lubricity, breathability, softness, antistatic, film formation, smoothness, mildew resistance, stain resistance, radiation resistance and other properties, so that cosmetics can be kept on the surface of the skin or the place to be coated for a long time.