Ultherapy targets the deep 4.5 mm SMAS layer using focused ultrasound for...

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

Ultherapy targets the deep 4.5 mm SMAS layer using focused ultrasound for gradual lifting over 3 to 6 months. RF heats skin to 40-45°C, boosting collagen closer to the surface with quicker results but less depth