A double chin is submental fat sitting beneath the jawline, and it is notoriously resistant to diet and exercise because fat distribution there is largely genetic. Posture, ageing-related skin laxity and jaw structure all contribute independently of body weight — which is why slim people often have one too.
Why Slim People Get Double Chins Too
Fat distribution is genetically determined. Some people store preferentially in the submental area regardless of overall body composition. Beyond fat, a recessed chin or shorter jaw structure creates the appearance of fullness even with minimal fat present, and loss of skin elasticity with age allows tissue to descend — creating a soft under-chin contour that was not there at 25.
The Posture Factor
Sustained forward head posture — the position most of us hold looking at a phone or laptop — shortens the muscles under the chin and weakens the platysma. Over years this contributes visibly to under-chin slackness. It is not the whole story, but it is a genuine and under-discussed contributor, and one you can influence.
What Non-Surgical Treatment Can Do
Two things need addressing: fat volume and skin support. Energy-based lifting tightens the skin and underlying tissue beneath the chin, sharpening the transition between jaw and neck. Where fat volume is the dominant issue, treatments that reduce submental fat are relevant. Most people benefit from addressing both, since reducing fat without tightening skin can leave slackness behind.
Realistic Expectations
Non-surgical treatment produces meaningful, visible definition — but it is not liposuction and it is not a surgical neck lift. If you have significant submental fat volume combined with substantial skin laxity, we will be straightforward that a surgical route may serve you better. Most people fall in the middle, where non-surgical treatment delivers a genuinely satisfying result.
If this describes what you are dealing with, our SKINLIFT® Non-Surgical Facelift protocol is the relevant option to discuss — our Aesthetic Specialist will confirm whether it suits you, or tell you honestly if it does not.
Frequently Asked Questions
Yes, in most cases meaningfully — though not to the same degree as surgery. Energy-based lifting tightens skin and tissue beneath the chin to sharpen the jawline. Our SKINLIFT® protocol targets exactly this area. Results build over 8–12 weeks as collagen remodels.
Fat distribution is genetic, so some people store submental fat regardless of body weight. Jaw and chin structure also matter — a recessed chin creates fullness without much fat. Age-related skin laxity contributes independently too.
They can modestly strengthen the platysma and improve posture-related slackness, but they do not reduce fat volume. Treat them as a helpful supporting habit rather than a solution on their own.