Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer for gradual...
https://atavi.com/share/y0umcwz19rfby
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