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

https://tango-wiki.win/index.php/Can_RF_Tighten_Skin_but_Not_Lift%3F_What_Does_That_Mean%3F

Ultherapy targets the deeper 4.5 mm SMAS layer with ultrasound energy, lifting and tightening over 3 to 6 months. In comparison, RF heats skin to around 40 to 45°C for collagen boost but stays more superficial