Ultherapy targets the 4.5 mm SMAS layer with focused ultrasound, promoting...

https://blogfreely.net/sordusgvrj/i-want-faster-results-should-i-combine-threads-and-ultherapy

Ultherapy targets the 4.5 mm SMAS layer with focused ultrasound, promoting collagen over 3 to 6 months for gradual lifting. Compared to RF, which heats skin to 40-45°C mainly for surface tightening, Ultherapy reaches deeper layers