In order to determine if you are a good candidate for Kybella, it's important to consult with an experienced doctor who can assess your medical history and speak with you about your overall goals for facial rejuvenation. Because it's so new,there haven't been any clinical trails using Kybella on patient's who are under 18 and over 65 years of age. As our skin naturally ages, we begin to develop laxity or looseness which causes the skin to sag. This is found more commonly in patients over 65 years old, which is why an experienced physician would need to assess each patient on an individual basis. Most individuals over 65 will most likely not be good candidates for Kybella because of increased skin elasticity and may need to consider surgical options. If laxity is the reason why you aren't a good candidate for Kybella, there are other procedures that can help tighten the skin like Ulthera. In order to address the submental fat, submental liposuction would be an alternative to Kybella injections. Remember that the most important thing is to consult with a doctor who has experience injecting Kybella to ensure that they can review all of your options with you thoroughly.