A double chin has two distinct components: submental fat (the fat pad beneath the chin and jaw) and skin laxity (loose skin in the same area). In many clients, both are present simultaneously — and addressing only one produces a partial result. A thorough assessment at your free consultation will identify which element (or combination) is most responsible for your concern. Submental fat can be stubborn even in otherwise lean individuals — it is often genetically predisposed and resistant to diet or exercise. Fat freeze (cryolipolysis) targets and reduces fat cells in the area. HIFU then tightens the overlying skin, sharpening the jawline and neck definition. Together they produce results that compare favourably to far more invasive alternatives.