Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for gradual...

https://wiki-planet.win/index.php/Ultherapy_vs_Standard_HIFU_%E2%80%93_What_Did_the_2024_Study_Say%3F

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for gradual skin lifting, with results peaking around 3 to 6 months. Compared to RF which heats surface layers to 40-45°C for collagen stimulation, Ultherapy reaches deeper