Kybella can be very safely and effectively used across a broad spectrum of ages. More important than age is what factors are contributing to the heavy neck. Both skin, muscle, and fat can cause aging and heaviness which came appear as a "double chin." The most important issue then becomes patient selection. Patients who have excess fat and good skin quality in their neck tend to benefit the most from Kybella. To ensure you are receiving the highest level of care, seek out a modernly trained, new-school dermatologic surgeon, oculoplastic surgeon, facial plastic surgeon or plastic surgeon who is board certified and fellowship trained in one of these "core four" cosmetic specialtiesCameron Chesnut#realself500 Physician