When asking a question such as whether a given procedure will give you a particular result, it is always helpful to include pictures of yourself with the question, to allow the surgeon to give you a realistic answer, based on your anatomy and the appearance of your tissues. In fact, you do not even state your age or your sex in your question! Nevertheless, your query does raise some interesting and important points for discussion. You say that you desire to have a "chiseled jaw line". Then you state that you have very little fat underneath your chin. This region is called the submental area. Your question is whether Kybella can make your jaw line "super taut". The first point to be made is that Kybella is approved by the FDA solely for the treatment of subcutaneous fat in the submental area, i.e., the central area of the neck below the chin. It is not approved for treatment of fat along the lateral portion of the jawline. Undoubtedly, part of the reason for this is concern that the mandibular branch of the facial nerve, which lies very superficially in this region might be injured by the needle used to inject Kybella in this area. A second important point for you to understand is that Kybella does not "tighten" the skin. It merely "melts" some of the subcutaneous fat beneath the skin. In some patients, this may even cause the overlying skin to become slightly loose. This is why it is sometimes most efficacious to combine Kybella injections with a skin tightening treatment such as Ulthera, particularly in someone like yourself, whose goal is to make the skin taut and the underlying contour well-defined.Lastly, there is a long list of additional minimally invasive ancillary procedures that could assist you in achieving the "chiseled jaw line" you seek. Some examples of these are:The Precision Lift, which uses laser energy to melt fat and tighten the SMAS layer, the strong layer of connective tissue that ensheathes the mimetic muscles of the facePlacement of a chin implant Injection of botox into the masseter muscles that insert upon the mandible to give the jawline a smoother contourRemoval of the buccal fat pad to give the anterior cheek a leaner appearance A formal consultation would be needed to see which of these procedures, or others, might be helpful in your particular case. Of course some pictures of your face would be helpful too!