Traditional hair transplant techniques are often limited by the number of hairs in the donor area and the size of the graft. With the HSI method, part of the hair follicle remains after the graft is extracted, leading to continued hair growth in the donor area. These new hairs can serve as donor follicles for future treatments.

As of the early 1990s, Drs. Coen Gho is closely involved in the development of new medication and treatment methods for victims of burn scars. The results of these studies have led to the development of the HSI method that has been a crucial distinction for many physical victims in recent years for their physical and psychological recovery.

Drs. Coen Gho’s first goal was to develop a technique that would not only be painless but that would also have a very fast healing process. Because of the tiny dimensions of the grafts in the HSI method, and the fact that they fit precisely in the holes, the grafts bond in their new location very quickly. Circulation is restored within one day, which means the healing process is faster and the chance of scarring is minimal. His second goal was to achieve natural hair growth on scar tissue with poor circulation.

 The specially-developed medium in which the grafts are stored after extraction keeps the grafts in optimum condition. As a result, it is possible to achieve excellent results even on skin of lesser quality.