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

https://griffinphut760.theglensecret.com/how-do-doctors-decide-ultherapy-energy-level-and-depth

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