Chemical sunscreen is chemical sunscreen agent, also known as ultraviolet absorber. It is a type of sunscreen agent. It achieves sun protection by absorbing harmful ultraviolet rays. Because chemical sunscreen agent molecules will be absorbed by the skin Absorption, so the process of absorbing UV rays occurs inside the skin and is metabolized and cleared by the body. Chemical sunscreens are irritating to the skin to a certain extent. Common chemical sunscreen ingredients include benzophenone, ethylhexyl salicylate, etc. Common chemical sunscreen ingredients include benzophenone, ethylhexyl salicylate, homosalate, cinoxamate, disodium phenyldibenzimidazole tetraxanolate, butylmethoxydibenzoylmethane, Ethylhexyl methoxycinnamate and some patented ingredients of the group's laboratories such as wheat color filters.
Its advantage is that it is very light and non-greasy, but it generally takes effect about 20 minutes after use. The sunscreen effect gradually decomposes under ultraviolet irradiation, and the sunscreen effect will slowly decrease until it becomes ineffective. Ultraviolet rays penetrating the skin can cause the skin to oxidize under ultraviolet rays. Therefore, experts recommend using it every two hours or so. The American Academy of Pediatrics recommends that children choose pure physical sunscreen products (with titanium dioxide and zinc oxide as active substances) to reduce the possibility of allergies on sensitive skin.
Chemical sunscreens are sunscreens that absorb harmful ultraviolet rays through chemical reactions. These sunscreens penetrate the skin. Some chemical reactions take place in our skin, so they are irritating and not suitable for sensitive muscles and pregnant women. Chemical sunscreens prevent skin damage by absorbing UV rays and converting them into heat energy. It is transparent, lighter and more natural. It has some irritating properties, especially for sensitive muscles. Be careful when choosing. However, with the development of science and technology, chemical solar protection is becoming more and more safe.
The most common ingredients are titanium dioxide, titanium dioxide and zinc oxide. Physical sunscreen protects the skin by reflecting, dispersing and refracting ultraviolet rays to prevent them from damaging the skin.