Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer beneath your...
https://zulu-wiki.win/index.php/How_Do_I_Choose_Between_Tightening_and_Lifting_for_My_Neck%3F
Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer beneath your skin, promoting a natural lift over 3 to 6 months