Ultherapy targets the 4.5 mm SMAS layer using focused ultrasound, lifting and...

https://www.beacon-bookmarks.win/ultherapy-in-singapore-targets-the-deeper-4-5-mm-smas-layer-using-ultrasound

Ultherapy targets the 4.5 mm SMAS layer using focused ultrasound, lifting and tightening over 3 to 6 months as collagen builds. RF heats skin to 40–45°C for surface tightening and quicker results but less depth