In hair care products, common types of silicone oil mainly include the following, each with unique properties and functions:

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1. Polydimethylsiloxane (PDMS)
Characteristics: Polydimethylsiloxane is the most common silicone oil, with good flexibility and gloss enhancement properties. It is a colorless and odorless transparent liquid that can form a protective film on the surface of hair, reducing friction and making hair smoother.
Usage: Widely used in hair conditioners, hair masks, hair oils, and other products, it can effectively improve the softness and glossiness of hair.

2. Amino silicone oil
Characteristics: Amino silicone oil is a modified silicone oil that can form a smooth and firm film on the surface of hair, with excellent conditioning and deposition properties. It helps to deeply repair damaged hair and reduce frizz.
Usage: Commonly used in hair care products for injury care, strengthening care, and dyeing and perming care.

3. Cyclomethylsiloxane
Characteristics: Cyclomethylsiloxane has low viscosity and high volatility, which can provide dry and soft skin feel after use. It has good breathability, rich luster, and high stability to light and heat.
Usage: Suitable for hair care products that require rapid evaporation and a refreshing sensation.

4. Phenyl silicone oil
Characteristics: Phenyl silicone oil has a high refractive index, is non greasy, has good breathability, and is compatible with cosmetic oils and fats. It can effectively improve the skin feel after use and enhance the shine of hair.
Usage: Commonly used in high-end hair care products to give hair softness and natural luster.

5. Polyether silicone oil
Characteristics: Polyether silicone oil is a water-soluble silicone oil with good wetting, emulsifying, and lubricating properties. It has stable performance between pH 1 and 12.
Usage: It can be used in many hair care products, such as hair spray, hair care lotion, etc.

6. Emulsified silicone oil
Characteristics: Emulsified silicone oil is a specially treated silicone oil with good emulsifying and dispersing properties. It can be evenly dispersed in water, making it easy to use in hair care products.
Usage: Widely used in 2-in-1 shampoo, hair conditioner, baked oil cream and other products.

7. Alkyl silicone oil
Characteristics: Alkyl silicone oil has good organic compatibility, which can enable organic matter to spread more evenly on the skin surface. It has excellent lubricity, hydrophobicity, anti fouling and anti sticking properties.
Usage: Suitable for hair care products that require improvement in rheological properties and uniformity.

The role of silicone oil in hair care products
Smooth hair: Silicone oil can deposit on the surface of hair, smooth out hair scales, reduce friction between hair, and make hair smoother.
Protect hair: Form a protective film to reduce damage to hair from hot tools such as hair dryers and permers.
Enhance shine: Silicone oil can form a flat protective film on the surface of hair, allowing for more specular reflection of light and making the hair look more shiny.

summary
Different types of silicone oil play multiple roles in hair care products, ranging from smoothing hair, increasing shine, to deeply repairing damaged hair. Choosing the appropriate type of silicone oil and hair care products can achieve the best hair care effect according to individual hair quality needs