Sunscreen
When the human epidermis is stimulated by ultraviolet rays, the oxidase (tyrosinase) in the pigment cells at the base layer of the epidermis is active, and one of the amino acids of tyrosine is oxidized and polymerized to generate melanin, and sent to the epidermis, so that the skin becomes black, and silicone sunscreen has no irritation to the skin, and it is not easy to absorb chemical changes in the heat and light, which can be easily adsorbed on the skin, which can prevent pigmentation caused by sun exposure, play a role in preventing tanning, and its effect is better than that of ordinary sunscreens. For example, sunscreens containing silicone oil will not be washed away by sea bathing and sweating, and it can prevent the harm of ultraviolet rays. It is best to add methylphenyl silicone oil to sunscreens, phenyl has a certain ability to absorb ultraviolet rays, and its sunscreen performance is better than that of methyl silicone oil. Linear alkyl silicone oil is also a valuable ingredient in the manufacture of sunscreen, improving its lubrication and hydrophobicity.