Useful. According to the website of seeking medical advice. It is a kind of jelly belonging to enzymes, which has a certain weight-loss effect, but it is not recommended to use these weight-loss products, because if used improperly, it will not only have no weight-loss effect, but will be dependent. If they stop using them, they will rebound. If you want to lose weight or control your diet, then reasonable exercise is healthier and more effective. Get liposuction if necessary.