The masseter muscle can also be called masticatory muscle, which starts from the cheekbone and connects the facial muscles of the mandible, keeping the mandible up to keep up with the chin, which can be said to be the muscle that combines the upper and lower jaws. Although it is a necessary and important organization, if it is too developed, it will affect the face shape and may cause a Chinese character face (angular chin). Generally, chewing hard things is easy to produce masseter muscles, and some people are born too developed. Because the masseter muscle is developed and looks bigger, it is useless for people with bad face shape to make facial contours, and the effect will not be very good. You don't need a major operation to cut bones. At present, many people choose face-lifting needles. Face-lifting needle belongs to micro-plastic surgery project, which does not need recovery time, but the effect lasts for a short time, the longest is less than 6 months. Therefore, the masseter muscle reduction has recently attracted attention.