Deoxycholic acid, also known as cholanoic acid, is the active ingredient in the prescription drug Kybella®. Kybella® is injected into the problem area and works to permanently destroy stubborn fat cells resulting in a smoother, more contoured profile over time. Treatments take only a few minutes to administer and have little to no down time. For optimal results, most patients require 3 to 4 treatments spaced 4 to 6 weeks apart.