According to the public comment website, Cheng Yan Slim Beauty is an intelligent weight-loss instrument launched by Cheng Yan Science and Technology Co., Ltd., which stimulates muscle contraction through high-frequency current to achieve the effect of burning fat and shaping. Thin beauty can be used in many parts, such as abdomen, buttocks, thighs, calves, arms and so on. It is said that thin beauty is obvious, which may vary from person to person, mainly depending on personal physique, body shape, diet, exercise and other factors. Generally speaking, the thin beauty in the city has a more obvious effect on those fat parts, such as abdomen and buttocks, because the fat layer in these parts is thicker and easier to be decomposed by current stimulation.