Hyaluronic acid, also known as uronic acid and hyaluronic acid, is one of the components of human dermal tissue. Hyaluronic acid injection is to inject hyaluronic acid into the folds, depressions or parts of the dermis that need enrichment, such as scars, cheeks, lips, chin or bridge of the nose. , can achieve the effect of eliminating wrinkles and changing appearance immediately. In addition, hyaluronic acid also has a super water-locking function, and supplementing hyaluronic acid can make the skin full and elastic.