Since hyaluronic acid is absorbed by the body, the maintenance effect of the injection is not permanent. Most hyaluronic acid injections last about 6 months, while some last 12-18 months. For long term results, supplemental injections are required, but of course this varies due to individual and physical circumstances. Hyaluronic acid is a very stable hyaluronic acid secreted by fibroblasts in the body. Injectable hyaluronic acid is a large amount of free hyaluronic acid that is cross-linked to form a shaped gel-like substance, which can be injected into the chin to achieve an immediate shaping effect. Injectable hyaluronic acid chin filler is one of the most popular cosmetic procedures today. The dosage of hyaluronic acid for chin injection is 1-3 injections, which varies according to your condition. However, in case of heavy impact or trauma, the hyaluronic acid can be displaced or free. If the patient’s chin muscle strength is developed, it is recommended to use large molecule hyaluronic acid with strong support. After injection, try not to make exaggerated expression, which can avoid the displacement phenomenon. After the operation, we also need to avoid squeezing, massaging, avoiding sauna and other behaviors, otherwise it will easily lead to the displacement of the injected hyaluronic acid position, which will lead to the incongruity of the jaw area.