Hyaluronic acid, also known as hyaluronic acid and uronic acid, is a substance existing in human body before rhinoplasty. At present, it is widely used in the beauty industry, and has a good effect on skin moisturizing and beauty beauty. Its effects include wrinkle removal, lip augmentation and face filling. After being injected into the human body through a pinhole, it can quickly fuse with its own hyaluronic acid.