The main component of the face slimming injection is botulinum toxin type A, which is a minimally invasive cosmetic injection, mainly used for face slimming and wrinkle removal. By injecting face slimming injections in the bite muscle area, not only can the effect of face slimming be achieved, but also can quickly eliminate wrinkles in order to achieve facial rejuvenation, and will not accelerate aging. Some of the older patients have experienced facial stiffness and partial loss of some functions after face slimming injections, probably for too frequent face slimming injections when they were younger. The interval between face slimming injections is at least 3 months, shorter than 3 months, easy to chewing function loss in old age, or because the face lost the support of the bite muscle, the early appearance of the cheekbone fat accumulation, sagging, so that the face is more aged. But the regular injection of facial slimming needle does not produce these adverse effects. The amount of injections of face slimming need to be precisely calculated, and the doctor’s professional technical level has high requirements, beauty lovers must go to a regular hospital for surgery, in general, the effect of face slimming injection can be maintained for about 6 months.