Traditional dermabrasion is a treatment method that uses sandpaper, grinding wheels or steel wheel grinding heads to grind uneven skin or stains to smooth the skin and eliminate stains. However, the grinding technology is rough, the depth is difficult to master, local anesthesia is required, and bleeding is easy, the postoperative recovery time is long, and the bandaging is complex, making it difficult for patients to accept. In order to overcome the above shortcomings, European plastic surgeons and engineering technicians have been working closely together and jointly developed microcrystalline grinding technology and equipment after arduous efforts. The principle is microscopic polygonal crystals of aluminum oxide (microcrystalline for short). Crystals), guided by a vacuum sealing system, impact on the uneven scar surface of the skin to achieve the effect of friction and smoothing of scars. The microcrystalline particles are small and the effect is uniform. When it rubs against scars and other tissues, its surface will bond with the worn tissue fragments and tissue fluid, blunting the original edges and corners of the crystal. Therefore, the polishing will not be too deep, and it is easy to control and achieve great results. Better.