Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin...
https://www.save-bookmarks.win/ultherapy-uses-focused-ultrasound-targeting-the-4-5-mm-smas-layer-for-a-deeper
Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin from deep within. It’s slower but natural-looking, with results peaking around 3 to 6 months