Sure, fillers may soften the jowls slightly, but this is not the best solution. Adding weight to the bottom of your face is a Band-Aid for the real problem which is the fact that the tissues have fallen. Fillers are a half measure which I would only entertain if you are set against surgery or do not have the financial means to do so. A mini facelift will allow that sagging tissue to be lifted back up to where it fell from, thereby restoring a heart-shaped looked your face. See a plastic surgeon or facial plastic surgeon. If you've see a "cosmetic Dr. " or "dermatologic surgeon " you will not be given the real surgical options, and may get sold on fillers when in fact they are not the best answer.Best of luck!Dr. SubbioBoard-Certified Plastic SurgeonNewtown Square/Philadelphia, PA