There is also a method to identify "silicone oil" in shampoo on the Internet: add shampoo to clean water and stir, if the water becomes cloudy after standing, then the shampoo is added with silicone oil; if it remains clear, then there is no silicone oil . It is said that the principle of this identification is because silicone oil is insoluble in water and will appear turbid in water. Silicone oil components in shampoos are generally treated with emulsifiers, and will not remain turbid, presenting a colorless and odorless state, and the dosage is not large, so water alone cannot make a judgment. The function of "silicone oil" is to make the hair smooth and have a certain moisturizing effect. Because after the hair is thoroughly cleaned, the cuticles are opened, and if there are damaged cuticles, it will increase the friction between the hairs, making it more difficult to comb in the later stage, thus aggravating the damage to the cuticles. This is why the hair will be very astringent and difficult to comb after shampooing without silicone oil. These lubricating "silicone oils" do not have to worry about affecting the body due to their small content. It is a macromolecular component that cannot be absorbed by the human body, and it will not harm the body when used normally.