Lipoatrophy is a dysfunction in the way the body produces, utilizes and stores fat, resulting in loss of fat. Lipoatrophy is typically marked by fat loss in areas such as buttocks, legs, and arms as well as face, which reveals sunken cheeks, temples, or eyes. Antiretroviral therapy is believed to be one of the key causes of this condition occurring among HIV infected people. Dr. Darvish treats lipoatrophy with dermal fillers. Juvederm, Restylane and Radiesse are temporary dermal fillers that can last up to 12 months. These fillers are comprised of hyaluronic acids, a substance found naturally in the human body, so there is no possibility of an allergic reaction.