Kybella is the first FDA-approved injection to target fat below the chin. The injection uses deoxycholic acid to target the fat cells in this area. Deoxycholic is a bile acid naturally found within our bodies and is used to help absorb fat. Kybella uses a synthetic form of this acid to help get rid of fat cells beneath the chin. Because this is an injectable treatment, there are no incisions required, and the recovery is quick and easy.