Fat dissolving injections, sometimes known as injection lipolysis, is a treatment that breaks down adipocytes (fat cells) through the use of an injectable and is a non-surgical alternative to fat reduction. The main ingredient of these injections is a substance called deoxycholic acid, which is a natural substance found in the body that helps digest fats. Kybella is currently the only form of fat dissolving injection that is approved by the FDA. It was originally meant for the reduction of submental fats or fats under the chin, also known as a double chin, but is now also used for other body parts.