All About Kybella Injections for a Double Chin

Many people struggle with a persistent double chin that simply won't go away. Even with a healthy lifestyle, submental fullness (the medical term for fat beneath the chin) can be incredibly stubborn.

At the practice of Anthony N. Dardano, DO, FACS in Boca Raton, Florida, Dr. Anthony N. Dardano, DO, FACS, and our team help patients achieve a more defined jawline. We offer advanced non-surgical options, including fillers and injectables like Kybella, to target and eliminate this stubborn fat.

What is Kybella and how does it work? 

Kybella is an FDA-approved prescription injection designed specifically to target and destroy fat cells under the chin. The active ingredient is synthetic deoxycholic acid, a naturally occurring molecule in the body that helps break down dietary fat. When injected into the submental area, it permanently destroys the fat cells so they can no longer store or accumulate fat. 

Because each person has unique anatomy, treatments are highly customized. According to the American Society for Dermatologic Surgery (2026), patients generally require three to six treatment sessions spaced four to six weeks apart to achieve optimal correction of submental fullness. Once you reach your aesthetic goals, the results are long-lasting, and further treatment is usually not necessary.

Why diet and exercise aren't always enough

It's a common myth that a double chin is always the result of weight gain. In reality, submental fullness can affect individuals of any weight or fitness level. 

As noted by Emory Healthcare (2026), submental fullness often develops due to genetics or aging and may persist despite maintaining a healthy diet and regular exercise routine. This genetic predisposition means that no amount of targeted exercise can completely spot-reduce the fat under your chin, making Kybella an excellent non-surgical alternative.

What to expect during Kybella injections 

During your session, we administer a series of small injections under your chin. The entire process takes only about 15 to 20 minutes, making it a convenient option for busy schedules.

While the procedure is highly effective, it's important to be aware of potential side effects. The Mayo Clinic (2026) notes that deoxycholic acid injections can cause temporary side effects, including swelling, bruising, or rare nerve injury in the jaw that may result in an uneven smile. Our experienced team takes every precaution to ensure a safe, comfortable, and successful treatment.

You don't have to live with a double chin that affects your confidence. If you're ready to contour your jawline and achieve a more youthful appearance, contact our office today to schedule your consultation.