Without examining you in-person, it is impossible to say for certain. However, loose, sagging skin can manifest as rolls above the neckline of your collared shirt when you wear a tie. In fact, this is one of the most common complaints that I hear from my male patients. Using a filler like Radiesse to restore structure that has broken down with age can create more definition at the jaw/neck juncture by lifting and smoothing the skin. It will not, however, address excess fat or significant loose skin. This is why you may also need to combine it with chin liposuction, the injectable Kybella or consider a surgical neck lift.