The effect of facial filler is different for people of different ages. I. Young people can use it to improve the contour of the face, such as the forehead, nose bridge or chin is not full enough and the height is not high enough, used to improve. There is also the improvement of apple muscle, some people are too thin and small, cheeks and apple muscle is relatively flat, the effect after this filler is very good. Second, for older people, facial fillers are mainly applied to improve wrinkles, forehead, facial furrows caused by soft tissue atrophy, in addition to making the facial contour full, it can also improve the skin quality and make the skin look younger. Its principle is mainly that most of the fillers have the effect of locking water, and the foreign body can stimulate the proliferation of its own tissue, and the process of reabsorption of autologous fat will also activate the repair of surrounding tissues. Therefore, it can improve the skin quality in different degrees as well.