Ultherapy uses focused ultrasound energy to target the 4.5 mm SMAS layer,...

https://juliet-wiki.win/index.php/Is_There_a_Way_to_Tell_If_a_Clinic_Is_Pushing_One_Device_Only%3F

Ultherapy uses focused ultrasound energy to target the 4.5 mm SMAS layer, helping lift and tighten skin with results building over 3 to 6 months. Compared to RF, which heats skin to around 40-45°C for surface tightening, Ultherapy goes deeper