DHI / Choi Hair Transplant in London
Treatment and quotation follow consultation and individual assessment.
Direct Hair Implantation / Choi
DHI, commonly associated with Choi implanter pens, describes the implantation stage of a hair transplant rather than the way grafts are harvested. Grafts can be obtained by FUE or FUT, then loaded into an implanter pen for controlled placement into the recipient area.
Why patients choose DHI / Choi
DHI/Choi gives the doctor close control over angle, direction, depth and spacing during implantation. It can be especially useful when working between existing hairs, refining a frontal hairline or building density in areas where precise placement matters.
Because the graft is loaded into the implanter, the lower portion of the follicular unit can be placed with less direct handling during insertion.
Hairline precision
DHI/Choi can be a strong option for hairline restoration because single-hair grafts can be positioned with fine control over direction and spacing. This helps create a softer transition at the front while allowing stronger density to be built behind it.
Our DHI/Choi cases are matched with doctors experienced in advanced implantation and detailed recipient-site planning.
Matched implanter sizing
Grafts are assessed and matched to an appropriately sized Choi pen before implantation. Matching the pen to the graft helps support controlled placement and reduces unnecessary compression or manipulation of the follicular unit.
DHI and FUE are not competing procedures
FUE and FUT describe how grafts are harvested from the donor area. DHI/Choi describes how those grafts are implanted. A patient can therefore have FUE or FUT harvesting followed by DHI/Choi implantation as part of the same transplant.
Keeping those stages separate gives the doctor more freedom to select the harvesting method and implantation technique that best suit the restoration.
Working around existing hair
DHI/Choi is particularly useful when grafts need to be placed accurately between existing hairs. For patients who still have significant native density, this can help integrate transplanted follicles into the existing pattern rather than treating the recipient area as a completely bare surface.
What happens next
During consultation, the doctor assesses the donor area, recipient area, existing hair, required density and overall design. They will advise whether DHI/Choi is the strongest implantation route for your restoration and whether FUE or FUT should be paired with it.