The fat-dissolving needle on the face is mainly the fat in the face-lifting part, which is decomposed and metabolized into fatty acids by the fat-dissolving solution. Fat-dissolving needle has no effect on dimples, which are the structure of facial expression muscles. Fat-dissolving needle only changes facial contour, but does not affect facial expression. The needle tube used for liposuction needle is very small, and there is almost no scar after operation. At the same time, the braking device of the liposuction needle can automatically avoid blood vessels and nerves, which makes the whole face-lifting process of the liposuction needle very safe.