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

https://wiki-global.win/index.php/I_Want_Faster_Results_%E2%80%93_Should_I_Combine_Threads_and_Ultherapy%3F

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for a deep lift, with results peaking around 3 to 6 months. Compared to RF, which heats skin to 40-45°C mainly for collagen, Ultherapy reaches deeper