Ultherapy targets the deep 4.5 mm SMAS layer with ultrasound to lift and...

https://trulyexpatlifestyle.com/non-surgical-skin-tightening-in-singapore/

Ultherapy targets the deep 4.5 mm SMAS layer with ultrasound to lift and tighten over 3 to 6 months. RF heats skin to 40-45°C for collagen boost but works more superficially