Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer deep under...

https://cashwpkr081.huicopper.com/what-does-brow-ptosis-mean-and-can-non-surgical-treatments-help

Ultherapy uses focused ultrasound targeting the 4.5 mm SMAS layer deep under the skin, promoting gradual lifting and tightening with results peaking around 3 to 6 months