Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin...

https://www.hometalk.com/member/254051008/alice1337254

Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin from deep within. It’s slower but natural-looking, with results peaking around 3 to 6 months