Let's invite experts from Beijing Cosme to introduce it to you: Brief introduction of hyaluronic acid: hyaluronic acid is a kind of macromolecular polysaccharide, which mainly exists in the connective tissue of vertebrates in nature and can maintain collagen in human body. In the past, hyaluronic acid was mostly extracted from animals, but now it is artificially synthesized to avoid infection and allergies. Generally, hyaluronic acid can absorb 300-500 times of water, keep the skin highly saturated, rebuild the protective film of water and fat, and make the skin healthy, tender and shiny. Hyaluronic acid originally exists in human body, especially in dermis, but with the increase of age, hyaluronic acid will gradually lose and the skin will be easy to dry. Therefore, adding synthetic or vegetable hyaluronic acid to cosmetics can play a very good moisturizing effect. Since injection of hyaluronic acid has such a good effect, then? Safety of hyaluronic acid injection: 1. Reaction to injection of hyaluronic acid: After injection of hyaluronic acid, some people will have red and swollen skin, but most people will disappear after a period of time. In terms of side effects, some people will have uneven skin surface after playing, and some people will have light skin surface color, which will last for several months. These unpleasant side effects will gradually improve after a period of time because hyaluronic acid is gradually absorbed and will not leave any traces on the skin. 2, the ingredients are safe and the effect is lasting. As for the latest injection of hyaluronic acid to fill cavities, just like collagen injection, the principle is to fill cavities, and the advantage of hyaluronic acid lies in its durability. Moreover, the synthesized hyaluronic acid is not easy to cause allergies. Synthetic hyaluronic acid is highly compatible with human hyaluronic acid, which will naturally be decomposed by the body, but it will gradually absorb water while decomposing, resulting in a "water lock" effect. Therefore, hyaluronic acid is absorbed in the human body for a longer time than collagen, which can last for about six months to one year. Moreover, because hyaluronic acid has good fluidity, transparency and colorless, it is easier to fill the depression, with smooth effect, better hardness and more uniform color. 3. There is no need to worry about the safety of hyaluronic acid injection, because hyaluronic acid injection has been used in tens of thousands of cases in clinic, and the quality of hyaluronic acid is strictly controlled from the manufacturer. From the clinical application, the effect is remarkable and there is no potential safety hazard. Summary: Through the introduction of Beijing Cosme experts, I believe you have a certain understanding of. If you want to know more about hyaluronic acid injection, please consult our online experts directly! Kesimei experts remind: you don't need to worry about the safety of injecting hyaluronic acid, but in order to ensure the effect of injecting hyaluronic acid, please choose a regular hospital, which has professional experts. Everyone has a desire for beauty. May your dream come true soon. Related article recommendation: How much is it acceptable to inject hyaluronic acid? What are the precautions for injecting hyaluronic acid?