The injection effect is good, but it is too easy to rebound. Generally, it needs to be injected two or three times a year in China, which is very troublesome. One time is about 1500, which is also very expensive. Now there is another ultrasonic face-lifting method in China, and the effect is good. It can be used for 5 to 10 years at a time, and the price is not expensive. Please go and have a look when you have time.