Some define it as the newest method in hair transplantation, some say there is no ‘recognized’ technique called DHI, others claim that it is just a marketing gimmick, while a fraction explains the method as; FUE with implanters.
The debate goes further, where the two methods at its simplest form stand out to be; ‘different ways to harvest the grafts’ combined with ‘conducting different implanting procedures’.
However, our aim for this study is to remain objective and to have a brief and clear understanding on how the procedure actually works.
Unlike the FUE method, during the DHI implantation method, site creation and graft implantation are performed simultaneously, i.e. extraction and implantation are combined as part of a one or two step process, embedding the extracted hair follicles directly into the receipt areas without the need of creating channel incisions in the donor area via utilizing an implanter (choi) pen that features a hollow needle connected to a tub and plunger device. This is why the DHI procedure is also referred as the Choi method.