Ultherapy targets the deeper 4.5 mm SMAS layer using focused ultrasound, making...

https://devinmqjy235.iamarrows.com/secret-rf-vs-thermage-what-is-the-real-difference

Ultherapy targets the deeper 4.5 mm SMAS layer using focused ultrasound, making it ideal for lifting and tightening with natural results developing over 3 to 6 months. RF heats skin to 40-45°C for surface tightening but doesn’t reach the SMAS