My friend bought a similar skimmer and used it. It's useless This is just a trick.

If you want to lose weight, you can refer to my method. In fact, it is: 1, strictly control your mouth, control your diet calories, and consume 1000 calories a day, 200 calories in the morning and 200 calories in the evening, and 600 calories at noon. Never eat midnight snack. If you are hungry, eat an apple. No drinks, no greasy food, less salt, less oil and less sugar, no snacks. You can do this, you have succeeded 40%. 2, moderate exercise, I go swimming after work, swimming 800- 1000 meters continuously, swimming consumes a lot of calories, swimming for 30 minutes can consume 565 calories. If you can't swim, it is recommended to ride a bike for 2 hours or walk fast 1.5 hours or more. If this can be done, there will be 40% success. 3, drink plenty of water, drink water according to weight, and drink 50 ml of water per kilogram of body weight every day. Drinking more water can accelerate the consumption of fat.

I weighed 2 14 kg last national day, and now I weigh 187 kg, which is strictly in accordance with the above three methods. I suggest you try.