Stem Cell Therapy procedures are performed at RL Center for Cosmetic Surgery and Medspa’s Vernon Hills office on an outpatient basis, and your provider will begin by applying a local anesthetic. Next, fat cells are removed from the patient’s abdomen or hip using a micro-liposuction procedure. The stem cells are then separated from the tissue using a centrifuge and finally injected back into the scalp in the areas of hair loss.