Body Linear Z is an upgraded version of the ultrasound lifting device ‘Linear Firm’, and is a laser lifting treatment that evenly delivers high-intensity focused ultrasound (HIFU) energy to various parts of the skin layer to coagulate skin tissue and improve elasticity. It can be used on both the face and the body, and with one cartridge, you can choose from two treatment modes (line type/dot type) and up to three depths, allowing you to perform customized treatment according to your face shape, body type, and skin condition. Compared to the existing Linear Firm treatment, Linear has a higher fat decomposition effect and improves the overall skin environment, helping to improve skin tone and redness.