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

https://trentonsmasterop-ed.readspirex.com/posts/can-ultherapy-replace-a-facelift-if-it-targets-the-same-smas-layer

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