Silicone oil products commonly used in cosmetics mainly include dimethyl silicone oil, methyl phenyl silicone oil, cyclic silicone oil, hydroxy silicone oil, polyether silicone oil, and long-chain alkyl modified silicone oil. The outstanding properties of silicone oil used in cosmetics mainly include water resistance, lubricity, spreadability, film formation and compatibility. Silicone oil has a low surface tension and has a good lubricating effect on the skin. Combined with a suitable viscosity, the other components of the cosmetics are easily dispersed and form a fine and uniform skin protective film on the skin to prevent dryness and wrinkles. It can also ensure the normal breathing of the skin and treat dermatitis and eczema. The protective film can also prolong the effect of active ingredients in cosmetics and effectively extend the effects of nutrient creams and medicated creams. The hydrophobicity of silicone oil prevents cosmetics with silicone oil from being easily lost due to washing or sweating. Silicone oil has good compatibility with most cosmetic additives. The good compatibility and compatibility make cosmetic formulations have more options, which is convenient for the development of different types of high-end cosmetics. The detackiness of silicone oil allows it to be combined with petroleum jelly, paraffin wax, beeswax, lanolin, etc. to obtain a non-sticky product.