The Direct Hair Implantation (DHI) technique applied with the implanter pen is a direct hair transplant application, it is also called by names like the Choi pen technique also called by unshaven hair transplantation.

Although it is essentially based on the FUE technique, Direct Hair Implantation (DHI) hair transplantation is partially considered as a new hair transplantation technique and is generally considered one of the most effective hair transplant techniques in the world.

DHI direct hair implementation is the world’s most advanced technology providing results, which goes above and beyond patients expectations. DHI which aims to intensify and close the bald areas without damaging the hair and healthy roots in the skin, a much more frequent and natural-looking hair transplant is performed.

The biggest difference with FUE is that in DHI hair transplantation, it is not necessary to open the canal before transplanting the hair follicles. In hair transplantation performed with the DHI Choi pen technique, the grafts extracted from the donor area are transplanted directly to the recipient area.

What Is a DHI Hair Transplant?

One of the most innovative and advanced hair transplant techniques. The hair follicles taken from the donor area with the Fue method are transplanted without opening the canal. After the hair collection process is completed, the hair follicles are planted in the patient’s receipt area using the Choi Pen.

DHI is suitable for treating limited baldness and increasing density.

DHI Hair Transplant Procedure

All hair transplant surgeries start with a doctor consultation session. In order to have the best hair transplant result, the patient; A comprehensive doctor analysis of the hair, type and severity of shedding should be done. We offer Free Online Counseling sessions to ensure you are a suitable candidate for a hair transplant.

A detailed blood test will also be required at the Medical of Istanbul hospital to better understand the type of hair loss and the patient’s condition to ensure that the hair transplant is the best option and has lasting results.

How is it performed?

Step 1:  Consultation and Hair Line Drawing

All hair transplant surgeries start with a consultation session. A thorough analysis of the patient’s hair, its shedding type, and severity is the starting point for a successful hair transplant.  Doctor will examines forehead muscles, your old photos and design your hairline for you.

Donor area determination and hair cut

Step 2: Your donor area will be carefully examined and a correct hair follicle collection plan will be made. After the plan is made, donor area will be shave.

Local anesthesia

Step 3: Local anesthetic will be injected into the donor area of the scalp.

Collection of hair follicles

Step 4: Hair follicles of the patients are collected one by one from the donor area. The collected hair roots are separated into graft (1,2,3 and 4+) groups. The collection of hair follicles requires a lot of professionalism. A professional donor extraction ensures undetectable results after complete recovery.

Transplant process

Step 5 : During the placement phase, follicles are transplanted using a special single-use implanter tool.  Hair follicles are placed in the DHI pen and planted one by one at an appropriate angle to the areas where the hair is sparse.

Advantages of DHI Hair Transplant

  • With this technique, the opportunity of performing unshaved hair transplantation.
  • There is absolutely no need for incision in this treatment method.
  • DHI hair transplant requires local anesthesia.
  • It is a method in which the control is at the highest level in terms of the depth, angle, and direction of the hair follicles.
  • Short recovery time – the time it takes to recover from the procedure is short.

Things To Know About DHI Hair Transplant

DHI is a modified version of FUE hair implantation and follows a similar procedure. Your surgeon will remove hair follicles from a part of your scalp, usually the back of your head, and implant them into balding areas. These hair follicles will eventually grow new hairs.

DHI is suitable for treating limited baldness and increasing density also mainly use for women hair transplantation. DHI method hair transplant will help you put baldness and receding hairline back and enjoy your look more than before. It will affect your life energy more positively than before.

Who needs a DHI procedure and Who is a Good Candidate for a DHI Hair transplant?

People with androgenic alopecia veya DHI hormonundaki bozukluk, which is the most common type of hair loss, make the best candidates for hair implantations. This condition is commonly referred to as male or female pattern hair loss.

Candidates who will have a hair transplant:

  • Age. People who get hair implants should be over age 20. Hair loss before this age is more unpredictable.
  • Hair diameter. People with thicker hair usually achieve better results than people with thinner hair. Thicker hair gives each hair follicle more coverage.
  • Donor hair density. Patients with a hair density of fewer than 40 folliclesTrusted Source per square centimeter at their donor site are considered poor candidates for hair transplants.
  • Hair color. People with light hair or with a hair color close to their skin tone often achieve the best results.
  • Expectations. People with realistic expectations are most likely to be satisfied with their results.


There are many similarities between DHI techniques and FUE hair transplantation techniques. DHI and FUE: It involves taking follicles from your donor area and placing them in balding areas.

In DHI and FUE surgeries, individual hair follicles are taken directly from your scalp.

During FUE, doctors and experienced hair transplant specialists make small incisions and open channels on your skin. During DHI, doctors and experienced hair transplant specialists allow these incisions not to be made and direct transplantation is performed.

There are no scars in DHI and FUE hair transplantation. DHI and FUE eliminate the long scar caused by FUT.

Since DHI and FUE are very similar, patients have a very difficult time choosing. Generally, if you have a large area of baldness, FUE is a more effective method. DHI is a suitable treatment for limited baldness or if you want to increase the density. Which technique will be applied is chosen by doctors and experienced hair transplant specialists.

What Is The Success Rate In DHI Technique?

The success rate of the DHI technique, which is seen as the technique with the most successful results and used recently, is over 95 percent. 95 percent of the hair follicles transplanted are not fallen out. DHI method, which is the one of the most preferred method by hair transplant specialists, is seen as a much safer method compared to old techniques as FUT.

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