VISCAN is an AI-guided ultrasound smart mirror that enables users to track regional changes in fat and muscle thickness. Its integrated camera analyzes posture and guides ultrasound probe placement on the abdomen, biceps, thighs, and calves for consistent measurements. Ultrasound imaging quantifies skin, subcutaneous fat, and muscle thickness in millimeters and visualizes tissue boundaries. Encrypted profiles support longitudinal tracking, while AI provides personalized fitness and nutrition guidance. VISCAN was developed through a WE-Meet project within the Next-Generation Display Convergence and Open Sharing System (COSS) program (Director: Prof. Chil Won Lee). Students from Dankook, Hoseo, and Hanseo Universities collaborated on the project. Hansono Co., Ltd. provided key technical support for the ultrasound system. The Future Imaging Research Lab at Dankook University (Principal Investigator: Prof. Heechul Yoon) led the development of VISCAN’s integrated system and software.