In recent years, the market has become popular a tool called “slimmer”, claiming that you can massage the cheeks to achieve a slimming effect on the face. The online “slimmer” is divided into these types: automatic roller type, electric vibration type, face mask type. The principle is to promote blood circulation by massaging the cheeks, squeezing the cheek tissue (mainly fat) to produce a thin face effect. But “slimming device” can really play a role in slimming the face? The answer can be obtained from the anatomical analysis of the cheeks. First of all, the “slimming device” role of the region in the cheek and jaw angle area; composed of soft tissue anatomy of the cheek from outside to inside in order to be the skin layer, subcutaneous tissue layer, cheek muscle, submucosa layer, mucosa layer, most of the fat is located in the subcutaneous tissue layer, which is often referred to as the “cheek fat pad “The “skinny face” said that you can squeeze the fat to get the effect of thin face is no scientific basis; and the jaw angle area has a relatively solid bite muscle attached to this, by compressing the soft tissue to thin the face, also does not make sense. At present, the method of face slimming is mainly through: the change of bone tissue and soft tissue changes to achieve. Change the bone tissue to achieve a thin face that is surgical treatment: through the amputation of the jaw angle, remove the outer plate of the mandible (according to the case to remove part of the bite muscle) to make the overall facial shape change, postoperative pressure plasticity, so that the soft tissue peeled during surgery and the bone surface more fit, to achieve satisfactory results. Another method, that is, by removing the fatty tissue of the cheek, with botulinum toxin injection to change the shape of the soft tissue to achieve the effect of face slimming. Therefore, the “slimming device” is only a commercial product of today’s public pursuit of the trend of slimming face, there is no scientific basis for its role in slimming the face.