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

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 targeting the 4.5 mm SMAS layer for deeper lifting, with results peaking around 3 to 6 months. RF heats skin between 40 to 45°C to boost collagen, great for surface tightening but less depth