HIFU (High-intensity focused ultrasound) is a new cosmetic treatment for skin tightening that some consider a noninvasive and painless replacement for face lifts. It uses ultrasound energy to encourage the production of collagen, which results in firmer skin.

HIFU has many aesthetic benefits such as wrinkle reduction, tightening sagging skin on the neck, lifting the cheeks, eyebrows, and eyelids, enhancing jawline definition, tightening of the décolletage, and smoothing the skin.