Ultherapy targets the 4.5 mm SMAS layer with ultrasound energy, helping to lift...

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

Ultherapy targets the 4.5 mm SMAS layer with ultrasound energy, helping to lift and tighten deeper tissues. It’s different from RF, which heats skin to around 40 to 45°C for collagen boost but stays more superficial