The 1550 nm erbium glass laser beauty instrument is a non-ablative (non-invasive) medical beauty device that uses mid-infrared laser to selectively act on the deep layers of the skin to stimulate collagen regeneration and improve skin quality while avoiding epidermal damage. It has the characteristics of fast recovery, high safety, and wide applicability. The external appearance of hand piece tip (2cm,3cm,5cm-specific) The various hand-piece tips are used for operation. The hand-piece tips are selectively used according to the size of the regular output form. The hand-piece can be touched to the skin of the patient at the time of operation. Therefore, before it is used for another patient, the end part of hand-piece tip shall be sterilized with alcohol or iodine liquid for 10 minutes. The material of the hand-piece tip touching the patient is the material made of SUS 316, and therefore, safe for the contact with human body.