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

https://xeon-wiki.win/index.php/Does_Ultherapy_Hurt_and_What_Affects_Comfort%3F

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