They take advantage of people's desire to lose weight and sell pills ranging from tens of cents to dozens of hundreds through various boasting. Any shopkeeper who tries them himself and gets an invalid refund is nonsense. Anyway, I can't pay after buying it. Because you have no patience to continue eating. Many drugs can not only lose weight, but also contain harmful substances. Don't use your head except exercise. If it works, there will be no fat people in the world.