It's quite effective I am in a beauty salon in Shanghai, and I use DJM's internal fat knife to help me lose weight. Why is it auxiliary? Because the internal fat knife can help you speed up blood circulation and burn fat, but you have to control your diet and exercise regularly. I just made up my mind to lose weight. Through healthy diet and exercise, combined with the internal fat knife, the effect is unexpectedly good. Moreover, losing weight is a long-term process, and the internal fat knife can be used, but sisters must stick to it. I believe that persistence will have good results!