Hello, the injected hyaluronic acid will merge with the original hyaluronic acid in the eyebrow arch tissue, resulting in swelling and fullness of the skin. It fills the soft tissue space of eyebrow arch and the low eyebrow arch by injecting hyaluronic acid at multiple levels and points, so as to achieve the purpose of correction. Under normal circumstances, one injection of hyaluronic acid will last about 6- 12 months, and it is generally recommended to inject 2-3 times, so that the effect of eyebrow augmentation can last for a long time, reaching 1-2 years. After complete absorption, it can be injected again and reshaped.