6D HIFU Machine (Pre-Owned)Non surgical facelift, tightening and facial contouring Hifu uses focused ultrasound energy to target the layers of skin below the surface. Ultrasound energy causes the tissue to heat up rapidly.Once the cells in the targeted area reach a certain temperature, they experience cellular damage. While this may seem counterintuitive, the damage actually stimulates the cells to produce more collagen a protein that provides structure to the skin. The