Submental fullness, or fullness under the chin, is a common problem encountered by both men and women. There are a variety of factors that can contribute to this problem including genetics, aging, and weight gain. However, many people with fullness of this area are not overweight and are unable to get rid of this stubborn fat despite diet and exercise. Kybella is a unique, FDA-approved injectable treatment that improves fullness associated with submental fat. Kybella is administered in the office and is best for patients whose double chin is caused by excess fat and who have mild to moderate skin excess.