Silicone has a unique silicon-oxygen bond structure Si-O-Si, endowed with large bond angle and bond length, small intermolecular force, and is not easy to crystallize unlike ordinary organic molecules, so it has good air permeability. The high bond energy makes the silicone polymer have outstanding heat resistance and excellent flexibility; the helical structure of its molecular chain and the longitudinal outer side of the methyl group make it have extremely low surface tension and good water repellency. Due to the special structure, organosiloxane polymers have a series of properties such as lubrication, softness, water repellency, defoaming, antibacterial and mildew resistance, and are used in personal care products.

The main characteristics of cosmetic products containing polysiloxane are as follows:

(1) It has good lubricating performance. After coating the skin, it can form a uniform waterproof protective film, but it does not have any sticky and greasy feeling, and the gloss is good.

(2) It has good anti-ultraviolet radiation performance, and it will not oxidize and deteriorate under ultraviolet radiation and cause irritation to the skin.

(3) Good anti-static performance. Tests show that the static electricity of the skin that has been wiped with the polysiloxane-containing skin cream is completely eliminated, and there is an obvious dust-proof effect.

(4) Good air permeability, even if a silicone film is formed on the skin, it does not affect the discharge of sweat. It has a slow release and fixed fragrance effect on flavors and fragrances, so the fragrance preservation period is longer.

(5) High stability, chemical inertness, no adverse effects on other components of cosmetics, especially active ingredients, and good compatibility.

(6) Non-toxic, odorless, tasteless, does not cause irritation and allergy to the skin, high safety, and has a certain effect on certain skin diseases, such as dyshidrosis eczema, neurodermatitis and occupational dermatitis, etc.