Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer, promoting...

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

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer, promoting gradual tightening over 3 to 6 months. Compared to RF, which heats skin to about 40 to 45°C to boost collagen, Ultherapy reaches deeper layers for lift