Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for a gradual...

https://smart-wiki.win/index.php/Can_I_Do_Ultherapy_and_RF_Together_or_Is_That_Too_Much_Heat%3F

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for a gradual lift, with results peaking around 3 to 6 months. RF heats skin to about 40 to 45°C, boosting collagen with less downtime but milder lift