Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, stimulating...
https://violetmetric.com/s/HvCVJZOKHZj0F5oxPfmvg
Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, stimulating collagen deep under the skin with results peaking around 3 to 6 months