Ultherapy targets the deeper 4.5 mm SMAS layer with ultrasound energy, making...

https://www.hometalk.com/member/254051008/alice1337254

Ultherapy targets the deeper 4.5 mm SMAS layer with ultrasound energy, making it unique compared to RF and standard HIFU that work more superficially around 40 to 45°C. Thread lifts offer immediate lift but with a shorter timeline