Loose skin under the chin, the soft double chin that is skin rather than fat, is a use Sofwave is FDA-cleared in the US for: to lift lax submental tissue, cleared in 2021 on the 80-patient study. The Lift applicator heats the dermis under the chin about 1.5 mm below the surface with the surface cooled, so the skin contracts and builds collagen over three months and the line from the chin to the neck cleans. One session, with a second a few weeks later as the study did where the clinician advises, from £799 at Sofwave Clinic, 8 Devonshire Place, with the price in writing at a free consultation.
Loose skin, not fat
Because the heat stays in the dermis and does not reach the fat layer at about 3 mm, the manufacturer states it does not cause fat loss. Sofwave tightens the skin over a soft chin without hollowing the neck, and for the same reason it does not remove a fat pad under the chin, which needs a different plan first. The clinician tests the area by lifting it at the free consultation and says which you have.
What the studies measured
Eighty patients treated twice a few weeks apart: blinded reviewers picked the after photograph correctly in 80% of cases, the treating physicians rated 85% as improved, 55% of patients reported improvement and 60% said they would have it again. A 2026 study of 42 patients found laxity under the chin and on the neck improved in 83% at three months, and a 2024 study of 15 found the improvement stable to six months. The neck and jawline page sets them out.
The session and the result
Numbing cream for 45 to 60 minutes, then about 20 minutes under the chin, or about an hour with the face and neck. Redness for a few hours and mild swelling up to a day, with work and makeup 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 the area under the chin, combined at a lower rate with the neck or the lower face, in writing at your free consultation. We price match any comparable written quote, and 0% finance is 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.
