First, remove facial static lines: age, smoking, sleeping squeeze, gravity traction, will cause the dermis of collagen and elastic fibers to reduce, causing skin laxity, creating facial wrinkles. Second, beautify the shape of the lips: lips will shrink with aging, wrinkles, the corners of the mouth will also sag due to aging. Third, improve the face: aging will cause changes in the distribution of subcutaneous tissue, temporal, cheeks, orbits and lips will be sunken around the chin and nasolabial groove lines on both sides, the bags under the eyes will appear to be redundant and sagging. Fourth, eliminate dynamic lines: the upper third of the face wrinkles often stem from muscle movement, but for a long time, it will cause deep static indentation. Volume modification: Nose height, nostril shape, earlobe size, lip shape, etc. can be adjusted according to the individual, and the congenital facial contour can be easily changed by filling. Filling of defects: Pits of acne scars, scars caused by trauma and surgery, asymmetry of congenital defects can be reconstructed by filling.