Kybella® is the only FDA-approved injectable prescription treatment for double chin by destroying submental fat.
The procedure involves undergoing several small injections under the chin. The number of treatments required mainly depends on the amount of fat below the chin. Treatments are typically given approximately one month apart.
Common side effects include swelling, bruising, discomfort, numbness, redness, and stiffening at the injection site. Side effects are usually temporary and resolve on their own after some time.