The DHI technique (Direct Hair Implantation) consists in realizing the extraction and implementation at the same time, so the follicular unit stay the minimun time possible out of the body while being less handled.
The follicles survival rate is higher. The hair implant is realized with an instrument called “implanter” or “Choi pen”, a tool designed for a better collocation of the implants. At a glance, looks like a pen. It has a needle at the top where the follicles are introduced for the later collocation.
The DHI technique is a variant of the FUE technique.
As we said, it is really similar in the process of extraction of follicles one by one, being the main difference the method of implantation in the receiving zone.
The main difference:
It allows to perform the hair transplant without shaving. For this reason, it has become the favorite technique amongst men with long hair.
The manipulation of the follicles during the process is lower, which increases the survival ratio.
Also, the “implanter” or “choi pen” allows the doctor to have a higher precision in the depth of the implant and the angle in which the new hair will grow, giving a much more natural look.