Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for a deeper...
https://www.seo-bookmarks.win/ultherapy-targets-the-deep-4-5-mm-smas-layer-using-ultrasound-energy
Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for a deeper lift, with results peaking around 3 to 6 months. Radiofrequency heats skin to 40-45°C to boost collagen, offering gentler tightening but at a shallower depth