Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin...

https://martinsultimatecolumns.quillnesty.com/posts/best-non-surgical-option-for-moderate-sagging-and-jowls

Ultherapy uses focused ultrasound to target the 4.5 mm SMAS layer, lifting skin from deep within. It’s slower but natural-looking, with results peaking around 3 to 6 months