Injectable fillers have become popular as “minimally invasive” or “nonsurgical” options for correcting minor deformities associated with aging.  Juvaderm and Radiesse are both formulations of hyaluronic acid, a naturally occurring substance found in the tissues under our skin. Fillers are most effective when used to “plump” thin lips, nasolabial folds and the areas under the eyes. Post-operative discomfort, swelling and bruising are usually very minimal. Hyaluronic acid fillers are slowly resorbed by the body and need to be repeated at certain intervals to maintain the effect.