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

https://rylansultimatethoughts.talesignal.com/posts/is-there-downtime-after-a-thread-lift-in-singapore

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