Ultherapy targets the deeper 4.5 mm SMAS layer with focused ultrasound energy,...
https://www.bookmark-help.win/ultherapy-uses-focused-ultrasound-targeting-the-4-5-mm-smas-layer-for-natural
Ultherapy targets the deeper 4.5 mm SMAS layer with focused ultrasound energy, stimulating collagen over 3 to 6 months for a gradual lift