Silicone oil, also known as silicone or polysiloxane, is a high-quality raw material widely used in cosmetics. Due to its odorless, non-toxic, non irritating to the skin, and excellent skincare, lubrication, UV radiation resistance, and breathability properties, silicone oil has been used in cosmetics for decades. The following are common types of silicone oil in cosmetics:

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Dimethyl silicone oil: This is a common component of silicone oil that has excellent lubricity and smoothness, making it easier for cosmetics to spread on the skin. At the same time, it can also form a protective film to prevent moisture loss and improve the durability of the product. In skin care products, dimethyl silicone oil is often used in lotion, face cream and other products to make the skin smooth and delicate, and increase the texture of the product. In addition, depending on the viscosity, dimethyl silicone oil can also be used in hair care products and scar removal products.

Amino silicone oil: This is a silicone oil containing amino functional groups, which has better hydrophilicity and antioxidant properties, and can effectively protect the skin from external environmental damage. In cosmetics, amino silicone oil is often used in foundation make-up, powder and other products to make makeup more lasting, not easy to take off makeup, and improve the concealer effect of products. In hair care products, amino silicone oil provides good softness and repair performance for damaged hair, and is commonly used in hair conditioners, hair masks, and hair drying creams.

Silicone oil lotion: Silicone oil lotion is a lotion product containing silicone oil, which has good moisturizing and moisturizing properties, can effectively nourish the skin, and improve skin dryness. At the same time, it can also form a protective film to prevent external pollutants and harmful substances from damaging the skin and maintain skin health.
Phenyl silicone oil: Phenyl polytrimethylsiloxane is a low viscosity colorless transparent liquid with slight volatility and high refractive index, which is easily compounded with alcohols and organic components. It has good anti sticking properties and the effect of increasing the solubility of silicone oil and other oils, which can be used to enhance the glossiness of the paste.

Polycyclic siloxanes, such as cyclic pentadimethylsiloxane, are colorless, odorless, and non irritating volatile liquids with good luster, water resistance, softness, and dryness. It is easy to emulsify and has no cold sensation or residue on the skin when it evaporates. It can generally be used in volatile refreshing creams and hair care essential oils. However, there is some controversy surrounding cyclic polysiloxanes (especially D5 and D4) because they are artificially synthesized components with high molecular weights, difficult to absorb by the skin, and not easily degraded in nature, which is detrimental to environmental sustainability.

Polyether modified silicone oil: This type of silicone oil is generally soluble in water, ethanol, and emulsion systems, making it suitable for addition as an moisturizer in skincare water or as a softener in hair care products.

In addition, there are various types of silicone oils such as polydimethylsiloxane alcohol, hydroxy silicone oil, and vinyl silicone oil, each with unique chemical structures and physical properties, playing different roles in cosmetics.


Overall, silicone oil occupies an important position in the cosmetics industry due to its unique properties and wide application prospects. However, when choosing cosmetics, it is still necessary to pay attention to the safety of silicone oil components, especially controversial components such as cyclic polydimethylsiloxane. Meanwhile, with the continuous advancement of organosilicon technology and the emergence of new silicone oil products, it will also bring more innovation and opportunities to the cosmetics industry.