Hello, before the chin augmentation operation with hyaluronic acid injection, do local anesthesia, inject a certain dose of hyaluronic acid into the front of the chin, and then knead and shape it by hand. Hyaluronic acid is the fastest method for chin augmentation, which takes effect quickly and does not require surgery and recovery period. However, the effect of hyaluronic acid injection on chin augmentation only lasts for more than half a year, and injection plastic surgery can continue after the effect disappears.