Dr. Katz Speaks with Shape Magazine on the Benefits of PRP Injections for Hair Loss

"When people lose hair, the follicles don't go away, they just become dormant," explains Bruce Katz, M.D., dermatologist and director of the JUVA Skin & Laser Center in New York. "When we inject PRP into the scalp, it actually stimulates the stem cells in the hair root that turn on the hair follicle again."