Safe and reliable. Dr. Shuangni mainly focuses on people with collagen loss, Souris moving down, decree lines appearing, mouth lines protruding and loose skin. It has a good effect on skin sagging, facial fat accumulation, facial lines, forehead lines, fine lines around eyes, mouth lines, crow's feet lines and other fine lines, and blurred mandibular lines. Dr. Shuanginverse is the first SD dual-technology collaborative system of MFU (micro-focused linear ultrasound) and radio frequency (radio frequency), and it is also the first equipment that perfectly combines micro-focused ultrasound and radio frequency. It can treat a deeper level and get better results.