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

https://johnathanytzx289.image-perth.org/if-i-only-care-about-fine-lines-should-i-skip-ultherapy

Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer deep under your skin, encouraging gradual lifting and tightening over 3 to 6 months