Affordable Hair Transplants Los Angeles doctors will then instruct his surgical team precisely how to divide the grafts. The strip is then dissected into very small follicular units or hair group grafts. These grafts may contain 1, 2, 3, 4 or more hairs. Each of these units is essentially an organ. They have a blood supply, are chemically regulated like other organs of the body and when transplanted will quickly return to homeostasis.