Hyaluronic acid, scientifically known as hyaluronic acid, acts as an architecture and filler in the skin, while retaining and absorbing water. It is an acidic mucopolysaccharide, and with its unique molecular structure and physicochemical properties, it shows a variety of important physiological functions in the organism. Especially important is that hyaluronic acid has a special water retention effect and is the best moisturizing substance found in nature, and our skin also contains a large amount of hyaluronic acid. Therefore, hyaluronic acid injections do not cause harm to the body, but the premise is to use regular hyaluronic acid that has passed the national approval, and hospitals are procured through regular channels, and there will be no irregular and illegal products. The reason why the prices of different brands are different is mainly related to the production process and raw materials. The reason why the prices of different brands are different is mainly related to the production process and raw materials. Those products that are very cheap, the beauty seekers should be alert when buying them. In recent years, hyaluronic acid accidents have occurred frequently, leading to rotten faces, disfigurement and even blindness among beauty seekers. Therefore, beauty seekers must be vigilant and look for regular hospitals as well as professional doctors for injections in order to safeguard our surgical safety.