Fat-dissolving injections come by many different names, including mesotherapy, lippodissolve, lipolysis and lipostabil. Multiple injections to a treated region generally include phosphatidylcholine. Lecithin is a major component of phosphatidylcholine, and is sometimes identified in fat-dissolving injections. Phosphatidylcholine and lecithin, common ingredients used in and compounded in mesotherapy treatments and LipoDissolve, or any fat-dissolving drug delivered by injection are not FDA approved.