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

https://chancesinsightfulinsights.brightsora.com/posts/why-do-before-and-after-photos-look-good-for-hifu-but-results-vary

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