Soft tissue fillers are flexible substances that can be injected into the skin to improve the appearance of fine lines and wrinkles, plump lips, fill hollow cheeks, repair various facial imperfections, improve scars, and elevate deep folds. Perhaps nothing is more gratifying for cosmetic patients than having an immediate correction of rhytides or scars as a result of the injection of a dermal filler The result is a smoother, more youthful appearance with minimal "downtime" and maximum safety. Prof. Moawad uses a variety of soft tissue fillers, including, hyaluronic acid, and autologous fat (one's own fat) among others. Since filler substances do not involve major surgery and are generally cost-effective, men and women are using these youth-enhancing techniques more than ever. With the increasing desire for people to achieve a more youthful appearance, the aging baby boomer population, and the increased demand for "lunch-time procedures," the pharmaceutical market has responded by providing the cosmetic surgeon with an increasing number of options to meet the demands of the cosmetic patient.