The crepey, loosened skin of the inner upper arm is a use Sofwave is FDA-cleared in the US for: skin laxity on the upper arms, cleared in 2023, with a 2025 study of 46 patients behind it. The applicator heats the dermis along the inner arm about 1.5 mm below the surface with the surface cooled, so the skin contracts and builds collagen over three months. Both arms in one session, from £799 as an area, at Sofwave Clinic, 8 Devonshire Place, with the price in writing at a free consultation. The study gave a second session one to three weeks later, and the clinician says whether yours needs one.
What it does on the arms
The skin of the inner arm firms and the crepey texture smooths. Loose, hanging skin after a large weight loss is more than Sofwave tightens, and a soft layer over a triceps that has lost tone is a muscle question, where EMsculpt NEO at our sister clinic is added. The clinician plans the order at the free consultation. Because the heat stays in the dermis, the manufacturer states it does not cause fat loss.
What the study measured
The clearance study treated 46 patients on both arms in two sessions one to three weeks apart: three months later, blinded reviewers rated 93% of treated arms improved, with no device-related side effects. It was published in 2025, and the full guide answers the questions on the body.
The session and the result
Numbing cream for 45 to 60 minutes, then about 30 minutes for both arms; redness for a few hours and mild swelling up to a day, with work fine the same day. The change shows from six to eight weeks and peaks at three months, when we take the after photograph, and in our experience it holds for around a year.
Price and booking
From £799 for both upper arms as an area, in writing at your free consultation, price match on any comparable written quote, 0% finance available; the prices page shows how a quote is built. Call Sofwave Clinic on 0207 099 9640 or use the form below, and the full Sofwave guide covers the rest.




