Human hair is composed of three parts. The center is the hair medulla, then the hair cortex, and the outermost is the hair cuticle. The hair cuticle is mainly composed of dead cells rich in keratin, also called hair scales.
The surface of the hair scales is a hydrophobic film. When the hair scales are damaged, the hydrophilic layer of the hair epidermis will be exposed, causing water loss. The processes of combing, perming, and hair dyeing will further increase the exposure of the hydrophilic layer.
This layer of hydrophilic material has very weak resistance to chemical substances and can easily cause the loss of moisture inside the hair, causing the hair to dry out, reduce its strength and elasticity, cause split ends, and lose its luster. At the same time, dry hair is prone to static electricity, which is not only difficult to style and comb, but also makes the hair more susceptible to damage.
Silicone oil mainly acts on the outermost layer of hair scales to protect them from damage. The following are the effects of silicone oil on hair:
①Make hair smooth.
Silicone oil has extremely low surface tension, and has good stretchability, waterproofness and lubricity. These properties allow silicone oil to evenly cover the hair surface and form a dense hydrophobic protective film, making the hair surface smooth and smooth, reducing hair loss. The friction between hair and hair makes it easier to comb.
②Protect hair.
When perming or blow-drying your hair, the temperature of your hair rises, taking away moisture and causing breakage and split ends. The protective film formed by silicone oil products on the hair surface can effectively reduce water loss and heat damage, and also help to smooth the hair cuticle.
③Brighten the gloss.
Smooth, well-arranged hair reflects the sun’s rays better, making it shinier and less damaging to UV rays than untreated hair.
④Prevent static electricity
In addition, the antistatic ability of polydimethylsiloxane can make hair docile and prevent hair from “flying”.
