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

https://www.bravobookmarks.win/ultherapy-uses-focused-ultrasound-targeting-the-4-5-mm-smas-layer-for-a-gradual

Ultherapy targets the deeper 4.5 mm SMAS layer using focused ultrasound, offering a natural lift that develops over 3 to 6 months