[David John]

The single-strip harvesting in follicular hair transplants ensures preservation of the follicular units and protection of individual hair follicles from possible damage.

Follicular units - Follicular units are a bundle of hair growing together. A follicular unit is usually formed of one to four terminal hairs. Every follicular unit is surrounded by one to two fine vellus hair, oil glands, a small muscle and a fine band of collagen. The follicular unit is the skin's hair-bearing structure ensuring maximum growth. It looks like a well-formed structure under the microscope.

In genetic balding the transplanted hair 脫髮 is of smaller diameter and length than the hair replaced. It is highly advantageous to use individual follicular units. It facilitates the use of very small units. At the same time the amount of transplanted units is proportionately much large. Therefore a surgeon can place up to four hair strands in a tiny recipient site. It has tremendous implications for cosmetic surgery in general.
This gives follicular hair transplant a considerable edge over micrografting. Transplantation
of individual follicular units also gives a natural look to the transplanted hair.