Ultherapy uses ultrasound to target the 4.5 mm SMAS layer, stimulating collagen...
https://hotel-wiki.win/index.php/Is_There_Downtime_After_a_Thread_Lift_in_Singapore%3F
Ultherapy uses ultrasound to target the 4.5 mm SMAS layer, stimulating collagen deep under the skin. It’s known for precise depth control and visible results that develop over 3 to 6 months