The principle of reducing weight by applying bags is to promote fat burning through high temperature to achieve the purpose of reducing weight, and at the same time, make effective ingredients enter the human body through the skin.

But the fact is that this method does not have a good weight loss effect. First of all, because the external high temperature has very limited promotion effect on fat burning, it only promotes body perspiration to a great extent. Most of the weight lost in a short period of time is water rather than fat, and it is easy to rebound after daily hydration.

Moreover, the skin is the natural barrier of the human body, and it is difficult for drugs to enter the human body through the skin, so it is difficult to lose weight.