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Double Chin

Double Chin

A double chin, the soft fullness that sits below the jawline, is one of the most common body concerns we treat, and one of the most misunderstood. It’s not necessarily a sign of being overweight: genetics, aging, and skin laxity can all cause submental fullness in people at a healthy weight, which is why diet and exercise often don’t resolve it. At Genesis Dermatology in Jupiter, FL, board-certified providers offer Kybella, a non-surgical injectable treatment that permanently reduces submental fat.
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What Causes a Double Chin?

Submental fullness, commonly called a double chin, develops from fat cells accumulating beneath the chin, and genetics play a major role in who develops it and how prominent it becomes. This is why even young, healthy-weight patients can have a noticeable double chin, it’s not exclusively tied to overall body weight the way many people assume.

Weight gain and aging can both contribute additional fullness or make an existing double chin more noticeable, and as skin loses elasticity and collagen over time, skin laxity under the chin can compound the appearance of fullness even when fat volume itself hasn’t changed significantly.

How to Detect a Double Chin

Common characteristics of submental fullness include:
  • Soft fullness or a visible fold beneath the chin, most noticeable when looking down or in profile
  • Fullness that persists despite a healthy weight and consistent exercise
  • A less defined jawline compared to how your jawline used to look
  • Fullness that's become more pronounced gradually with age, sometimes alongside looser skin in the area
  • A combination of fat volume and skin laxity, both of which affect how the area responds to treatment

When Is It Worth Treating a Double Chin?

Consider a consultation if:
  • Submental fullness bothers you in photos, profile views, or the mirror
  • Diet and exercise haven't changed the appearance of the area, which is common since this fullness is often unrelated to overall body fat
  • You're interested in a non-surgical alternative to liposuction or a more invasive procedure
  • You want to understand whether fat, skin laxity, or both are contributing to your specific concern, since that affects the right treatment approach

What Happens If a Double Chin Is Left Untreated?

A double chin isn’t a medical concern, so there’s no health risk to leaving it as is. That said, submental fullness generally doesn’t improve on its own, and for many patients it becomes gradually more noticeable over time as skin laxity increases with age, even if the underlying fat volume stays relatively stable.

Because effective treatment exists and is well-tolerated, the main cost of waiting is simply living with a concern that bothers you for longer than necessary. There’s no treatment advantage to waiting, earlier treatment doesn’t make the process any more complex, and addressing it sooner means enjoying the results for a longer period.

The Genesis Dermatology Process

Here’s what to expect for double chin treatment:
  • A consultation to assess how much of your fullness is fat versus skin laxity, and to confirm you're a good candidate for injectable treatment
  • Kybella treatment, a series of small injections of deoxycholic acid, a naturally occurring molecule that permanently breaks down fat cells beneath the chin
  • A typical treatment plan involving 2 to 4, and sometimes up to 6, sessions spaced about a month apart for optimal results
  • Minimal downtime, with most patients returning to normal activities the same day, alongside some expected temporary swelling
  • A combined approach with skin-tightening treatments for patients whose concern includes meaningful skin laxity alongside fat volume

Ready to Take the Next Step?

Submental fullness rarely responds to diet and exercise, but it responds very well to the right treatment. Schedule a consultation with the board-certified providers at Genesis Dermatology in Jupiter, FL, to explore your options for a more defined jawline.
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Frequently Asked Questions

Is Kybella permanent?
Yes, once a fat cell is destroyed by Kybella’s active ingredient, it’s gone permanently and won’t return, which is why results are considered long-lasting as long as your weight remains stable.
Most patients need a series of 2 to 4 sessions, though some need up to 6, spaced about a month apart, to achieve their desired result.
Most patients describe some stinging or burning sensation during and shortly after injection, which is generally well tolerated. Numbing is typically used to keep the treatment comfortable.
Swelling under the chin is common and can be significant for the first few days, gradually resolving over one to two weeks. Most patients return to normal activities immediately, though visible swelling may affect your appearance briefly.
Kybella targets fat specifically, so if skin laxity is your primary concern, a skin-tightening treatment may be recommended instead of, or alongside, Kybella. Your provider will help determine the right combination during your consultation.
Yes, submental fullness is often unrelated to overall body weight, so many candidates for Kybella are already at a healthy weight and simply have a genetic predisposition to fullness in this area.