When you start researching hair transplants, you will quickly run into two acronyms everywhere: FUE and DHI. Clinics will tell you DHI is more advanced, more precise, or the next generation of hair restoration. Some charge 15 to 30 percent more for it, but here is what those clinics will not tell you: DHI is not a different technique. It is FUE. It has always been FUE. The only thing that changed is the branding.
What a DHI Hair Transplant Actually Is
Let us be direct about where the term DHI comes from, because it matters.
DHI, which stands for Direct Hair Implantation, is not a clinical classification recognized by the International Society of Hair Restoration Surgery (ISHRS), the leading professional body in the field. It is not defined in any medical taxonomy as a technique distinct from FUE. It is a brand name, popularized and commercialized by a private equity medical franchise DHI Global Medical Group, a company that started in Palo Alto in 1970 and now operates a franchise network of over 75 clinics worldwide.
DHI is, at its core, a franchise brand. When clinics market DHI to you, they are often marketing a corporate product, not a genuinely distinct surgical method. The terminology has since spread beyond DHI Global’s network, but its origins are commercial, not clinical.
The Actual DHI Technique
What gets called DHI is simply FUE with a specific implantation tool, most commonly the Choi Implanter Pen (or another brand of sharp implanters). Here is how both procedures actually work:
FUE (Follicular Unit Excision) extracts individual hair follicles one at a time from the donor area using a small punch tool. The surgeon then creates recipient channels in the thinning area using a blade or needle,and separately places the follicles into those channels by hand.
DHI uses the same FUE extraction process, identical step for step. The only difference is the implantation step. Instead of making channels first and then placing follicles, the surgeon’s team loads each follicle into a hollow pen (the Choi pen or other sharp implanter) that creates the channel and deposits the follicle in a single motion.
That is the entire difference. The excision of the grafts is the same. The healing timeline is the same. The scarring is the same. The graft survival rates, in experienced hands, are comparable. What you are paying a premium for is a placement tool with a fancy marketing name: one pen versus forceps and a blade.
There are 4 methods to implant grafts: 1) pre-made sites + forceps, 2) pre-made sites + dull implanters 3) stick and place using open-bore needles and forceps, 4) stick & place with sharp implanters. The method of implantation depends on several things including; the surgeon’s preference, technician skills, body site of restoration, and medical regulations. In addition, the method of implantation has nothing to do with what type of harvest you had. Both FUT and FUE grafts can be implanted using any of these 4 techniques.
The Choi Pen Predates the DHI Brand by Decades
Here is something clinics conveniently omit from their marketing materials: the Choi Implanter Pen is not proprietary to DHI. It was invented in the late 1980s in Japan and formally described in a 1992 paper by Professor Choi at Kyungpook National University in South Korea. The tool existed and was used by surgeons long before the DHI brand turned it into a premium-tier marketing category.
The pen is simply a tool. A useful one in the right hands, for certain cases. But calling FUE with a Choi pen a fundamentally different procedure, and charging substantially more for it, is a stretch that the medical literature does not support.
What Doctors Who Do Not Sell DHI Actually Say
While many clinics lean into the ‘implanter pen’ trend as a primary marketing tool, Dr. Krejci emphasizes that these devices are not a substitute for surgical expertise. Many of these tools were popularized not because they produced better results, but because they allowed clinics to streamline operations and reduce the need for a highly skilled placement team.
Dr. Krejci and other hair restoration experts have observed that some clinics use these, primarily used as a marketing ploy in attempt to make one clinic standout as superior to another; presenting them as an ‘advanced’ technology to justify their service. At Limmer, we take a different approach. We believe the best results come from a team-based, hands-on methodology. We are very upfront about who does what in the process of a procedure but also how and why. By avoiding ‘shortcut’ technology that limits our ability to customize every placement, we ensure that every patient receives the individual attention and technical proficiency they deserve. Moreover, we avoid misleading terminology that adds no value to the hair transplant process.
The choice between implanter pens and traditional forceps remains a subject of ongoing debate in hair restoration. While proponents argue that implanters reduce graft handling time and improve precision, there is no peer-reviewed evidence establishing them as superior to manual placement when executed by a skilled team. Consequently, adoption is split; many top-tier surgeons continue to rely on manual techniques because their teams have optimized those workflows for high-quality, consistent growth.
What the Research Actually Says
A 2017 study published in Hair Transplant Forum International, the ISHRS journal, offers the most rigorous look at implanter pens available. Researchers found that the pens do protect fragile FUE grafts during placement and can reduce certain types of graft damage. That is a legitimate, measured benefit. But the same study stops well short of declaring pen placement superior to skilled hand placement, explicitly noting that endorsing one method over the other is not possible from the evidence.
The honest takeaway from the clinical literature: the Choi pen is a reasonable tool that offers some advantages in specific scenarios, but it is not a transformative upgrade that justifies a different category name or a significantly higher price. We happen to use the Rainbow implanters. We’ve also tried Lion implanters. They’re all basically the same.
When a stick and place or Choi Pen (Sharp implantation) Actually Makes Sense
To be fair, there are situations where the Choi pen’s combined channel-and-implant motion offers a genuine, practical benefit. These include:
- Hairline work requiring very precise angle and direction control
- Eyebrow and beard transplants, where spacing is tight and density matters
- Does not require a shaved head to implant grafts
- Smaller procedures where the efficiency of omitting an implanter device outweighs the setup of a full placement team
In these cases, a surgeon choosing to use a Choi pen is making a sensible technical decision. That is different from a clinic marketing DHI as a premium product category and building a price premium around a term the ISHRS does not formally recognize.
Questions to Ask Your Hair Transplant Specialist
If a clinic leads with using DHI as their primary selling point, it might be worth asking some follow up questions.
- How many procedures has this surgeon personally performed?
- Can I see before-and-after photos for cases similar to mine?
- Who performs the excision, and who performs the placement and what method do they use?
- Does your team include trained surgical technicians, or is one person using a pen to handle everything?
- Why do you recommend DHI specifically for my situation, and what would be different from a standard FUE or FUT?
A clinic that recommends DHI because it is their premium offering, without a patient-specific rationale, is probably just upselling you. Sharp implantation is not proving to be better than any other method of implantation.
DHI vs. FUE – Overall Thoughts
DHI is a misleading misnomer meant to make clinics appear superior and it is mutually exclusive from the FUE method of harvesting. Grafts are harvested via FUE or FUT, THEN you implant them. Sharp implanting or premade sites follow the same donor harvest, the same healing timeline, the same scarring profile, and the same fundamental biology. The only difference is the Choi pen or other sharp inplanter tool which is used by a minority of top surgeons and offers no real advantages and therefore does not justify treating it as a categorically superior technique.
The hair transplant industry has a long history of rebranding existing tools with new acronyms and charging more for them. DHI is among the most successful recent examples of that.
Before you pay a 30 percent premium for a name the ISHRS does not formally recognize, make sure you are paying for surgical skill and experience, not marketing.
Ready to cut through the noise and talk about what is actually right for your hair loss? Contact Limmer Hair Transplant Center today.
