"Which hair loss treatment is right for me?"
"Is medication alone enough, or do I need a hair transplant?"
Hello, I'm Director Yoo Hwa-jung of Modi Hair Plant Clinic.
Once you start looking into hair loss treatment, you encounter a wide range of options, from minoxidil, finasteride, and dutasteride to scalp injections and hair transplants.
Because there are so many options, many people ask questions such as "Which treatment should I start with?", "Is medication alone enough?", and "When should I start considering a hair transplant?"
What matters in hair loss treatment is not simply choosing the strongest treatment, but checking what stage your hair loss is currently at and selecting a treatment suited to that condition.
Today, let's go over the basic mechanism by which hair loss progresses, along with the role of medication therapy, injection therapy, and hair transplantation, all in one place.
First, please keep one thing in mind. Medication therapy, injection therapy, and hair transplantation are not treatments that must be carried out in the order 1→2→3, nor do they replace one another. They are different treatment methods that may be considered alone or in combination depending on your current hair loss condition.
Key Summary
- In androgenetic alopecia, the representative form of male- and female-pattern hair loss, DHT and the genetic sensitivity of hair follicles play an important role.
- In the early stages of hair loss, follicles do not disappear immediately; rather, follicular miniaturization, in which they gradually become thinner and smaller, may progress.
- Medication therapy is mainly used to manage and maintain the progression of hair loss in existing hair.
- Depending on the situation, injection therapy applied directly to the scalp may also be considered.
- In areas where hair is already insufficient or follicle loss has progressed, relocating hair follicles through a hair transplant may be considered.
- Therefore, the starting point of hair loss treatment is not "Which treatment is the best?" but rather checking "What is my current hair loss condition?"
Why Does Hair Fall Out? The Mechanism of Androgenetic Alopecia
There are various causes of hair loss, but one of the representative types commonly seen in clinical practice is androgenetic alopecia.
What is commonly referred to as male-pattern and female-pattern hair loss falls into this category.
In androgenetic alopecia, the process in which testosterone, a male hormone, is converted into DHT (dihydrotestosterone) by 5-alpha reductase (5α-reductase) plays an important role.
When follicles that are genetically sensitive to DHT are affected, the anagen (growth) phase of the hair shortens, and as the follicles gradually become smaller, the hair that grows may become thinner and shorter than before.
This process, in which follicles gradually become smaller, is called follicular miniaturization.
Why It Matters to Start Treatment in the Early Stages of Hair Loss
The onset of hair loss does not mean that follicles disappear all at once.
In the early stages, it may appear as a decrease in the number of hairs growing from a single follicular unit, or as an increase in hairs that are thinner and shorter than before.
In other words, this is a stage in which the follicles still remain but are gradually undergoing miniaturization.
At this stage, there is room to manage the progression of hair loss and to maintain or improve existing hair through appropriate treatment.
Conversely, in areas where hair loss has progressed for a long time and follicle loss has advanced, there are cases in which sufficient change is difficult to expect from medication or injection therapy alone.
That is why, in hair loss treatment, it is important not to miss the period during which manageable follicles still remain.
Hair Loss Treatment ① Medication Therapy
One of the most fundamental treatments considered for androgenetic alopecia is medication therapy.
Representative examples include minoxidil, finasteride, and dutasteride, each of which differs in its mechanism of action and target population.
Minoxidil
Minoxidil is an ingredient widely used in hair loss treatment.
The topical form is the most common, and depending on the patient's condition, low-dose oral minoxidil may also be used under the judgment of medical staff.
Minoxidil is known to support hair growth through several mechanisms that affect hair growth and the anagen phase.
However, depending on the type and degree of hair loss, it may be considered together with other treatments rather than used on its own.
Finasteride and Dutasteride
Finasteride and dutasteride are medications that inhibit 5-alpha reductase, the enzyme involved in the conversion of testosterone into DHT.
Because they act on a key mechanism of androgenetic alopecia, they are used importantly in the treatment of male-pattern hair loss.
A network meta-analysis published in JAMA Dermatology in 2022 compared several medications and dosages used for male androgenetic alopecia, and oral dutasteride 0.5 mg/day showed a high efficacy ranking among the analyzed treatments.
However, this does not mean that dutasteride is the most suitable option for every patient. The average effect confirmed in a study and the selection of a treatment suitable for an individual are separate matters.
Age, degree of hair loss progression, health status, the possibility of side effects, and the feasibility of long-term use must all be considered together.
Should I Start With the Most Potent Hair Loss Medication?
You might think that if a medication is highly effective, it is better to use it from the start, but in hair loss treatment, medications are not selected by comparing efficacy alone.
This is because each medication has different characteristics and potential side effects, and underlying conditions and individual circumstances also differ.
Above all, since hair loss often requires long-term management, it is also necessary to consider whether the treatment is suitable for you now and can be continued consistently.
If You Are Planning to Have Children, Your Choice of Hair Loss Medication May Differ
Men who are planning to have children in the future should consult sufficiently with medical staff before using finasteride or dutasteride.
A study published in 2025 analyzed the duration of dutasteride use and changes in semen parameters in young men.
After discontinuing the medication for 6 months, improvement in some semen parameters was observed, but in the group with a longer duration of use, results were also reported in which the recovery of some parameters was not sufficient. However, as this was a single-center study with limitations in study design and potential confounding factors, changes in reproductive function for all users cannot be predicted from this result alone.
Therefore, if you are planning to have children or are concerned about related matters, rather than selecting or discontinuing medication on your own, it is advisable to consult your attending physician and, if necessary, consider relevant tests.
Hair Loss Treatment ② Injection Therapy
If you are already on medication therapy but need somewhat more active management, or if the use of certain oral medications is difficult for personal reasons, treatments applied directly to the scalp may also be considered.
Scalp injection therapy is characterized as a localized approach that delivers ingredients directly to the necessary area.
Dutasteride Scalp Injection
This is a method of applying the dutasteride ingredient locally to the scalp.
It is being studied as one treatment method, including for cases in which oral medication use is difficult, and whether it is applicable and how it is administered should be decided in consultation with medical staff, taking into account the type of hair loss and the individual's condition.
Minoxidil Mesotherapy
This is an injection treatment method in which minoxidil is applied locally to the scalp.
In a randomized, placebo-controlled trial conducted in female patients with androgenetic alopecia, improvement in some parameters, such as the terminal-to-vellus hair ratio and the proportion of anagen hairs, was reported after intradermal minoxidil injections into the scalp.
However, as the scale of the study was limited and treatment protocols may differ, this does not mean that the same results occur in every patient.
Hair Loss Treatment in the Field of Regenerative Medicine
Recently, research related to regenerative medicine that focuses on the microenvironment around hair follicles and growth signals has also been under way in hair loss treatment.
While medication therapy approaches key mechanisms of hair loss such as DHT, the field of regenerative medicine focuses on the environment around the follicle and the various signals involved in hair growth.
However, treatments related to regenerative medicine differ in their level of evidence depending on the ingredients and methods used, and there are areas in which further research is still needed regarding the durability of effects and methods of application.
Therefore, it is important to take a careful approach, considering both the research results accumulated to date and the individual's condition.
Hair Loss Treatment ③ Hair Transplant
While medication and injection therapy are mainly treatments that manage the hair currently remaining, the role of a hair transplant is somewhat different.
In areas where hair loss has progressed for a long time and follicle loss has advanced, sufficient improvement may be difficult to expect from medication or injection therapy alone.
In such cases, a hair transplant, in which healthy follicles are harvested from areas such as the occipital region and transplanted into areas where hair is insufficient, may be considered.
Why Occipital Hair Can Continue to Grow After Being Relocated
One of the important concepts in understanding the basic principle of hair transplantation is donor dominance.
In general, the stable donor follicles in the occipital region used for hair transplantation have the characteristic of being relatively less affected by androgens compared with follicles in the frontal or crown areas where hair loss progresses.
The basic principle of hair transplantation is that even when these follicles are relocated to an area of hair loss, they largely retain the characteristics they had in the original donor area.
In Hair Transplantation, How the Follicles Are Handled Matters as Much as the Number of Hairs
When looking into hair transplantation, many people first check "how many hairs will be implanted."
Of course, planning the required number of hairs is important, but in hair transplantation, how the harvested follicles are handled without damage and how appropriately they are preserved until implantation also matters.
Multiple stages, including the follicle harvesting process, ex vivo preservation, follicle sorting and handling, and the implantation process, can affect the final outcome.
In addition, for a natural-looking hair transplant, it is necessary to consider not only the number of hairs but also a design suited to the face shape and existing hairline, density, the direction and angle of the hair, the possibility of further hair loss in existing hair, and the condition of the usable occipital donor area.
Does a Hair Transplant Mean Hair Loss Treatment Is Over?
I hope those considering a hair transplant will be sure to keep this in mind.
A hair transplant is not a surgery that treats existing androgenetic alopecia itself or prevents hair loss that may occur in the future.
It is closer to a surgery that relocates healthy follicles to areas where hair is insufficient, thereby supplementing areas that appear lacking.
Accordingly, androgenetic alopecia may continue to progress in the hair that originally existed around the transplanted hair.
This is why, depending on the patient's condition, it may be necessary to manage the progression of hair loss in existing hair through medication therapy and the like even after a hair transplant.
Medication, Injections, and Hair Transplants Are Not Competing Treatments
We have looked at three treatments so far, but what matters most is that you do not have to choose only one among medication therapy, injection therapy, and hair transplantation.
| Treatment Method | Main Role | Typically Considered When |
|---|---|---|
| Medication therapy | Managing the progression of hair loss and maintaining existing hair | Androgenetic alopecia in which follicles still remain |
| Injection therapy | Applying necessary ingredients locally to the scalp | When additional treatment is considered depending on the individual's condition |
| Hair transplant | Relocating healthy follicles to areas where hair is insufficient | Areas where hair is insufficient or follicle loss has progressed |
For example, an approach may be taken in which areas already lacking hair are supplemented with a hair transplant, while the surrounding existing hair is managed through medication therapy and the like.
Rather than replacing one another, the three treatments are closer to methods of managing hair loss by dividing up their respective roles.
That is why the first question in hair loss treatment should not be "Which treatment is the best?" but "What stage is my current hair loss at?"
Frequently Asked Questions
My hair loss isn't severe—should I still start treatment?
In the early stages of hair loss, there are cases in which the follicles have not been completely lost but miniaturization is progressing. Therefore, if you suspect hair loss, it is advisable to check your current follicle condition and, if necessary, begin management at an appropriate time. However, since the causes of hair loss vary, an accurate diagnosis comes first.
Which is better, finasteride or dutasteride?
Studies have reported differences in average effects between medications, but a medication with higher efficacy is not necessarily the most suitable for every patient. It is advisable to decide in consultation with medical staff, taking into account the degree of hair loss progression, age, health status, the possibility of side effects, and plans to have children.
Can women use the same hair loss medications as men?
For women, there may be restrictions on which medications can be used depending on the possibility of pregnancy and pregnancy plans. In particular, whether medications such as finasteride and dutasteride can be used must be determined in consultation with medical staff.
Can I combine hair loss medication with scalp injection therapy?
Depending on the patient's type and condition of hair loss, medication therapy and scalp injection therapy may be considered together. However, which ingredients and methods are applied may vary depending on the individual's condition.
Can I combine hair loss medication with a hair transplant?
Yes. Because hair transplantation and medication therapy have different roles, they may be used in combination depending on the patient's condition. This means supplementing areas where hair is insufficient with a hair transplant while managing the surrounding existing hair with medication and the like.
Can I stop taking hair loss medication after a hair transplant?
Having a hair transplant does not automatically stop the progression of hair loss in existing hair. If androgenetic alopecia is likely to continue progressing, medication therapy and the like may be necessary to manage the existing hair around the transplanted hair. Whether to take medication and for how long should be discussed with medical staff based on the individual's condition.
Ultimately, Hair Loss Treatment Begins With Checking Your Current Condition
Even with the same hair loss, the stage of progression differs from person to person, so the treatment required may also differ.
If follicles still remain and miniaturization is progressing, treatment to maintain and manage existing hair may be important.
Conversely, if hair is already significantly insufficient or follicle loss has progressed in an area, a hair transplant may also be considered.
What matters is not passing by the early stage in which management is possible, and accurately checking your current hair loss condition.
If you have felt confused because there are so many hair loss treatment options, rather than starting with the question "Which treatment is the best?", we recommend first checking the current condition of your hair and follicles.
Consultation Information
"I don't know whether to start with medication or get a hair transplant."
"I'm curious about how far my hair loss has progressed."
If you have such concerns, it is advisable to first check the condition of your scalp and hair.
At Modi Hair Plant Clinic, we check the current degree of hair loss progression, the condition of existing hair, and, if necessary, the occipital donor area, and provide consultation on a treatment direction suited to each individual's situation.
If You're Wondering Which Treatment Suits Your Hair Loss Condition
The degree of hair loss progression and the treatment required differ from person to person. If you are curious about whether a hair transplant is necessary and approximately how many hairs would be needed, check below.
Watch the Video
The content of this article is also available in the YouTube video by Director Yoo Hwa-jung of Modi Hair Plant Clinic, "Complicated and Confusing Hair Loss Treatment, Explained All at Once!"
References
- Gupta AK, Venkataraman M, Talukder M, Bamimore MA. Relative Efficacy of Minoxidil and the 5-α Reductase Inhibitors in Androgenetic Alopecia Treatment of Male Patients: A Network Meta-analysis. JAMA Dermatology. 2022;158(3):266-274. doi:10.1001/jamadermatol.2021.5743.
- Kim YJ, Lee SR, Yu YD. Long-term use of dutasteride to treat androgenic alopecia in young men may lead to persistent abnormalities in semen parameters. Clinical and Experimental Reproductive Medicine. 2025;52(4):376–385. doi:10.5653/cerm.2024.07675.
- Uzel BPC, Takano GHS, Chartuni JCN, et al. Intradermal injections with 0.5% minoxidil for the treatment of female androgenetic alopecia: A randomized, placebo-controlled trial. Dermatologic Therapy. 2021;34(1):e14622. doi:10.1111/dth.14622.
※ This article was written for the purpose of providing general medical information and cannot replace diagnosis and treatment based on an individual's condition. Whether a medication or treatment method is applicable may vary depending on the individual's condition, so please decide after sufficient consultation with medical staff.
This article was uploaded after review by our medical staff.