Ultherapy in Singapore targets the deeper 4.5 mm SMAS layer using ultrasound...

https://www.coast-bookmarks.win/ultherapy-uses-focused-ultrasound-targeting-the-4-5-mm-smas-layer-for-a-firmer

Ultherapy in Singapore targets the deeper 4.5 mm SMAS layer using ultrasound for natural lifting, with results peaking around 3 to 6 months. Compared to RF, which heats skin to 40-45°C mainly for collagen tightening, Ultherapy reaches deeper tissues