The fold of crepey skin above the kneecap, the one that shows in a skirt or shorts, is the newest use Ultherapy is FDA-cleared in the US for: skin laxity at the knees, cleared in May 2026. The clinician runs lines of focused ultrasound under the skin above and beside the knee at the depths chosen from the image, and the heat builds new collagen over three to six months so the fold tightens. Both knees in one session, with the price in writing at a free consultation at Ultherapy London, 130 Harley Street.
What it does on the knees
The fold tightens and the skin above the knee looks smoother. A fold that has lost its elasticity entirely is more than Ultherapy lifts, and a pad of fat above the knee is a fat question, which we also treat; the clinician says which at the free consultation.
What the evidence covers
The 2026 clearance rests on a review of three published studies with 44 people, which showed clinically significant improvement up to six months after treatment, and on real-world data from clinicians, with no unexpected side effects reported. The full guide sets out the face and neck studies.
The session and the result
About 30 minutes for both knees, with a comfort plan agreed beforehand; redness for a few hours, swelling for a day or three, tenderness for up to two weeks. The result builds over three to six months, when we photograph it, and holds for around a year in our experience.
Price and booking
Both knees are priced as an area, in writing at your free consultation, with a price match on any comparable written quote and interest-free finance through Humm, subject to status. Call Ultherapy London on 0207 043 8109 or use the form below; the full Ultherapy guide covers the rest.