High-intensity focused ultrasound (HIFU) is a highly effective non-surgical skin treatment for lifting, tightening, and rejuvenating your skin. The beauty of this treatment is that it targets the foundational layer of the skin with ultrasound energy, without cutting or disrupting it, which usually happens during cosmetic surgery. Instead, HIFU uses ultrasound energy and a very specific temperature to support maximum collagen regeneration, resulting in firmer, younger-looking skin.