Concerns
Double Chin & Submental Fat
Understand what causes a double chin, why it often has nothing to do with weight, and what professional treatments can do about it.
What's happening beneath the skin?
What's happening beneath the skin?
A double chin is one of the most common areas where localised fat accumulates regardless of overall body weight. For many people it is a genetic predisposition rather than a lifestyle issue, and it is one of the more reliably treatable concerns with the right approach.
The fullness beneath the chin is caused by a deposit of subcutaneous fat in the submental area, sitting between the skin and the platysmal muscle. This fat compartment is genetically determined in both its size and distribution.
Unlike visceral fat, submental fat is a localised structural deposit that does not reliably reduce through lifestyle changes alone. With age, laxity in the overlying skin and the platysmal muscle can compound the appearance, adding a sagging quality on top of the fat volume.
What Causes It?
What Causes It?
Genetics is the primary driver. Submental fat tends to run in families and can be present even in lean people. Weight gain can increase the deposit, but many carry it at a stable, healthy weight. Age-related skin laxity and platysmal banding can further compound the appearance.
What You Can Do
What You Can Do
No topical treatments meaningfully reduce submental fat. Maintaining a stable, healthy weight prevents the deposit from enlarging; SPF preserves the quality of the overlying skin.
Professional treatments:
Belkyra (deoxycholic acid injections; permanent fat cell destruction over 2–4 sessions); CoolSculpting with submental applicator; skin laxity addressed with Ultherapy or Thermage where appropriate.
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