Silicone oil in cosmetics

Silicone oil and its derivatives as a new wave of cosmetic raw materials, with excellent physical and chemical properties, such as physiological inertness, good chemical stability, odorless, non-toxic, and has a very low surface tension and strong water repellency to the skin No irritation, no allergies, a protective film that is evenly waterproof and breathable and has good lubricating properties on the skin surface.
The silicone oils currently used in various cosmetic formulations mainly include: polydimethylsiloxane, polymethylphenylsiloxane, polydimethylcyclosiloxane, silicone glycol copolymer, and amino modification. Silicone oil and emulsified silicone oil.
Several common silicone oil properties in cosmetic formulations
1, polydimethylsiloxane
Polydimethylsiloxane is a colorless, odorless, transparent liquid. It is widely used in creams and hair cosmetics to improve the smoothness and smoothness of the skin, as well as to make the hair soft, smooth, improve combing and increase gloss. A lipstick made of polydimethylsiloxane gives the lips a soft, dry feel. The high content of polydimethylsiloxane siloxane shampoo is hand-lubricated when shampooed, and the comb is good after passing water, and the gloss is soft after the hair is dried.
2, polymethylphenylsiloxane
Colorless and transparent liquid, its physical properties vary with molecular weight, polymethylphenylsiloxane has excellent radiation resistance, widely used as hair and cream cosmetics, can be used as a mask filming agent, hair Radiation-resistant agent in conditioners and sunscreens.
3. Polydimethylcyclosiloxane
The polydimethylcyclosiloxane is mainly composed of octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane. Both are colorless and transparent liquids, low in viscosity, good in volatility, fluidity and spreadability, and low surface tension. They can impart fast drying, smoothness, brightness and luster to cosmetics. In the skin care, anti-sweat, deodorant and other products, it can also be used in beauty cosmetics and hair gel.
4, amino modified silicone oil
A silicone oil such as an amino-modified silicone oil is an organosilicon compound synthesized by substituting a methyl group in a polydimethylcyclosiloxane with an amino group.
Studies have shown that silicone oils with amino functional groups are very unique long chain conditioning agents. These silicone oils have improved wetting and lubricity, and are compatible with cationic and nonionic emulsifiers. They are commonly used in cosmetics for shampoos, conditioners, etc. to increase the shine and softness of the hair, to comb, and to improve the solids. The effect is also easy to wash off.
5, emulsified silicone oil
The emulsion of polydimethylsiloxane can increase the gloss of the hair, improve the dry comb and wet comb without residual accumulation, and is often used for 2-in-1 conditioning shampoo.