HIFU
| Field | Medicine |
|---|---|
| Also known as | Ultherapy, high-intensity focused ultrasound
|
HIFU (high-intensity focused ultrasound; Ultherapy is the named US device) heats SMAS or dermis to tighten. Effect is typically modest. Pain, burns, and nerve injury are documented. It is not a thread lift and not a facelift.
This wiki's view
Energy is not geometry. A millimeter of brow or jowl change is not a jawline. Use it as skin/SMAS tightening if at all; hitch or surgery for descent.