Follicular Units
  Follicular units defined are the naturally occurring groups
  of 1-4 hairs that are present in the human scalp. Each
  group also contains sebaceous glands, nerves, a small 
  muscle and occasional fine vellus hairs. The essence of
  Follicular Unit Transplantation is to use these individual,
  naturally occurring follicular units exclusively in the hair
  transplant procedure.
 
  This will accomplish a number of objectives critical to the
  hair restoration process.

  Optimal Growth
  Since the follicular unit is a distinct anatomic and physiologic entity, preserving it during the graft dissection
  is felt to maximize growth. In FUT, hair is removed from the back of the scalp in a single strip. Microscopic
  dissection then allows the individual follicular units to be removed intact from this strip without being damaged.

  Naturalness
  Another advantage of using naturally occurring follicular unit grafts of 1-4 hairs is that it ensures the naturalness
  of the transplant. The advantage of follicular units over other grafting techniques in insuring a totally natural
  result, has been the main reason for its widespread acceptance.|

Ultra Refined Follicular Unit Hair Transplantation - The "Gold" Standard
In the last few years, physicians have continued to revolutionize standard follicular unit transplantation, called "Ultra Refined follicular unit hair transplantation". Trimming smaller "skinny" grafts and making smaller incisions with ultra refined tools allows a hair transplant surgeon to transplant follicular unit grafts even closer together thus minimizing the number of hair transplant procedures a patient may require.