Silicone oil, with the following names: demescum, dimethylsilicone, dimethylsilicone oil, polydimethylsiloxane. Also known as nonvolatile liquid silicon, it is a synthetic material silicide. High purity silicone oil is almost non-toxic. It can give the product a smooth and silky feeling and form a film on the skin. It is usually used to assist makeup or moistening products to create texture. According to different viscosity, it has many applications and changes. Silicone oil containing products usually only bring short-term immediate effect, can not be maintained and absorbed for a long time, and may even reduce the penetration efficiency of other ingredients, so it is more suitable to be added to the formula of non penetrating skin products. But now silicone oil is widely used in emulsion, cream, sunscreen products, foundation products, antiperspirant products and hair care products. Silicon can be used as hydrophobic film, water repellent or anti foaming agent. It is refreshing, non sticky and safe. It can replace synthetic esters and vegetable oils and is cheap.
Why does shampoo need silicone oil?
This is because once the silicone oil touches the hair, it will fill up the space between the hair scales, thus creating a smooth touch. After washing the hair, the quality seems to be better! Therefore, it will make people mistakenly think that the product has the function of nourishing hair, but the silicone oil that was originally covered on the hair can not be washed completely due to its water-insoluble property in the next use, instead, it will cover the outer layer of hair layer by layer with the number of uses, resulting in heavy hair and gradual loss of elasticity, pores blocked and unable to breathe. As a result of insufficient oxygen permeability, the dermal papilla, which has great influence on scalp health, will gradually shrink, so the scalp is also prone to itching, and may even have the sequelae of hair loss. In recent years, due to the improper selection of shampoo for scalp folliculitis cases, the treatment rate in the dermatology department is increasing, beauty lovers should not be careless when maintaining their hair. Therefore, silicone oil is a kind of bad thing with its own appearance, and now it has been recognized by the general public.