Most effective options to get rid of chin/jowl fat (22yrs/slim build)? CoolMini did not work. What about Kybella?

While you do have some submental fat, it is subtle and perhaps the CoolMini applicator could not work with your contours. Both Kybella and CoolSculpting usually need at least two to three sessions before your optimal results are visible. Kybella can treat smaller areas than CoolSculpting, so you may respond better. If you are looking to tighten your skin as well, you might want to consider adding in Ultherapy or Thermi. Consulting a board-certified dermatologist who has experience removing volume and tightening skin under the chin will give you a better sense of what will work best for you.

If liposuction is not expected to give a result one wishes in a better neck, then neither coolsculpting nor kybella is expected to provide improvement. Kybella is not injected along the jaw line to avoid nerve damage, despite it being temporary.The information provided in Dr. Shelton's answer is for educational purposes only and is not intended to constitute medical advice.  The information provided should not be relied upon as a substitute for consultations with a qualified health professional who may be familiar with your individual medical needs. 

From your photos, it seems that Kybella would be a good option for you. Kybella works well for excess fatty tissue under the chin (and to some extent along the jawline - except you have to avoid injuring the marginal mandibular nerve). In young, thinner, patients, the excess fatty tissue is usually genetic in nature. Remember, however, that it is not possible to do a perfect evaluation using just these photos. If the issue is from the position of your mandible, rather than just fat, Kybella and/or liposuction may not be the right answer. You will need to see an expert in Kybella and liposuction to make this determination. Kybella is most often done as a series of treatments. The procedure itself is easy to undergo, and you can drive yourself to and from the office. There is usually mild to moderate burning after the injections from the inflammatory response that Kybella produces. You will then have between 3 to 14 or so days of swelling and tenderness. I generally do follow-up injections at 6 weeks after the initial treatment.

It is possible that there was too little fat before your Coolmini treatment, and that skin laxity may be a part of the problem. Kybella will reduce any fat but cannot be injected safely along the jawline, and although it can produce some tightening it isn't always predictable for that. Consider Ultherapy after either lipo or Kybella.

Based on your photos you are a very good candidate for Kybella since you are young, have good skin tone, and have minimal fat/fullness under your chin. You would likely get a very nice result and have a much more defined jawline as well. Most likely you would need 2-3 treatments spaced 6 weeks apart. A more aggressive option would be liposuction. This is a one time treatment which would remove the fat and induce skin tightening. Liposuction is more invasive and you would have more downtime. Please consult a board certified dermatologist or plastic surgeon experienced in these procedures.  Best wishes.

You have a few options. I find that VASER liposuction in combination with ThermiRF are best for contouring the chin in those who are candidates but Kybella can be used as an alternative with or without thermage/ultherapy/exilis.  PDO nova threads can further improve the jawline. See an expert. Best. Dr. Emer

I believe that you can benefit from Kybella for fat cells and Thermage and Ultherapy for skin tightening. You can want to discuss some fillers with your provider for smile lines and chin lines. I advise you to make an appointment with experienced provider to discuss and create treatment plan to reach your desired results. Good luck!

Since Kybella can treat a smaller area than the CoolMini, I think it may deliver a better result for you. Schedule a consultation with a board certified plastic surgeon or dermatologist to be assessed in person and discuss. 

I believe that you can benefit from Kybella for fat cells and Thermage and Ultherapy for skin tightening. You can discuss about some fillers with your provider for smile lines and chin lines. You may even consider fillers for jawline contouring. I advise you to make an appointment with experienced provider to discuss and create treatment plan to reach your desired results. Good luck! 

Thank you for your photos. Kybella is an FDA-approved injectable medicine used to treat the fat underneath the chin. The injectable helps the body rid itself of fat cells that form under the chin (submental fat). One of the many benefits of Kybella is that it will actually destroy the fat cells. It is minimally invasive with no downtime. Please remember Kybella does not treat loose skin. It only used to remove fat. For more information, I would recommend getting an in person consultation with a board-certified dermatologist.