There are various hair transplantation techniques, and selecting the best one is dependent on various factors such as the size of the bald area, quality of the donor area, the number of grafts required, and so on.

Hair transplantation methods improved as technology advanced in the field of hair transplantation, with this improvement new equipment and techniques were developed.

Using the Choi Implanter pen for the DHI treatment is one of the most revolutionary procedures for hair transplantation.

In this blog, we will describe what Choi Pen is, how it revolutionized the way of operation, and its benefits and drawbacks.

What is the Choi Implanter Pen?

The Choi Implanter Pen was designed in 1992 at South Korea's Kyungpook National University. The Choi Implanter Pen is an accurate and efficient tool for performing great hair transplantations that results in a far more natural appearance.

It is a pen-like surgical tool with a 0.5 mm–1.5 mm hollow needle at its tip and has a micro motor that allows very easy graft extraction.

Before it became widespread, it was created to address the issue of baldness patterns among Asian men, whose hair is often thicker than that of Caucasian and African men.

As a result, the Choi pen was ineffective on all hair types, but thanks to technical improvements, it has been modified for thinner hair strands.

Why should we use the Choi Pen?

The main reason that we recommend this with DHI is, The Choi Implanter Pen allows grafts retrieved from the donor area (back of the head and beard) to be placed directly on the transplanted area without the requirement of an incision. Once the grafts have been extracted, they are inserted into the hollow needle part of the pen (attached to the plunger through a tube) and implanted one by one on the bald area at an exact angle of 40-45 degrees. Not having an incision requirement is important to protect the patient's hair follicles. When an incision is made on the scalp this incision damages the patient's hair follicles. This reason makes this method a perfect choice for the people that do not want to lose their hair follicles

The Choi pen's efficiency and speed result in an increase in the survival percentage of transplanted hair follicles. Other transplant methods keep the grafts outside while the doctor is opening the channels. This can be a problem because unfrozen follicles can only last outside of the body for 6 hours.

Based on the patient's needs, up to 6, Choi Pens with varying needles can be used throughout the operation to fit the graft size.

The Choi pen enables hair transplantation without shaving the recipient area, making it the best option for patients that are having long hair and does not want to shave it for the treatment.

Which one is superior, DHI with a Choi Implanter Pen or FUE Sapphire?

These two methods are two of the most researched and requested hair restoration treatments.

Both are regarded as the most modern and best treatments for patients seeking a fuller, natural hair look. Which one is superior?

If we take a look at the extraction methods we would see that both of them have the same extraction method. ( Taking from the donor area and implanting it in the bald areas). But when we look at the transplanted area we will see the difference and this difference is DHI method does not require incisions to implant the hair thanks to Choi Implanter Pen.

With this specialized pen, the procedure becomes more efficient and effective.

There are also some differences application-wise. In the FUE sapphire method, the patient's hair must be shaved but in the DHI method, it is not necessarily needed. With the Choi Pen, we can also make denser implantations but for the patients that have wider balding patterns, Fue is a much better method. The Choi Pen method is a method that requires more experience and is more difficult to use when we make the comparison between it and the Fue method.

Both methods are viable and create amazing results but a doctor's examination is necessary to understand which method would be most suitable.

Does Choi Pen make any scars?

As mentioned before this method does not makes incisions to the scalp to implant hair follicles. Using this pen shortens the recovery period and decreases the change of scars form. It should be noted that post-operation care is very important to achieve a perfect result.

Who can operate with a Choi Pen?

As previously stated, a DHI hair transplant using the Choi pen has many advantages, including speeding up the procedure and ensuring a more natural appearance. A Choi Pen hair transplant, on the other hand, requires a well-trained and skilled medical staff. Not everyone can use the Choi pen correctly, and a doctor with little experience may damage the follicles.

 Benefits and drawbacks?


  • Do not damage the patient's hair follicles with an incision
  • Improved control over the angle of implantation
  • Ensures that the grafts survive longer.
  • Can achieve higher density
  • Because there is no incision, there is a lower risk of infection and bleeding.
  • The operation can be done without shaving patients' hair.
  • Faster recovery


  • An experienced medical team and more training required
  • It is more expensive compared to the different methods

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