Scalp Micropigmentation (SMP): A New Way to Help Ease Hair Loss Concerns?

Hair loss is a problem that affects not only appearance but also confidence.

There are representative options such as medication and hair transplantation, but they are not the right answer for everyone.

For people who find transplantation difficult or want a quick visual improvement, scalp micropigmentation is getting attention.

Scalp micropigmentation is a technique that does not implant real hair, but instead injects tiny pigment dots into the scalp so it looks like closely shaved hair.

It is regarded as a non-surgical visual solution that reduces scalp show-through and creates a natural impression.

Scalp Micropigmentation (SMP): A New Way to Help Ease Hair Loss Concerns?

Summary Table

Item	Details
Study subjects	10 people (6 androgenetic, 4 cicatricial)
Number of procedures	3 total sessions (40→60→100 dots/cm²)
Results	Visual density 8.7 points, satisfaction 2.7/3
Satisfaction	85.7% of androgenetic alopecia patients were very satisfied
Advantages	Safety, quick improvement, low burden
Limitations	Additional research needed on long-term retention and pigment changes

Q1. What is scalp micropigmentation (SMP)?

Before scalp micropigmentation: 2024-08-29 / After scalp micropigmentation: 2024-10-16

This article is a real case of a patient who received treatment at New Hair Plastic Surgery Clinic.

The before-and-after photos each indicate the time they were taken, and they were taken under the same patient and the same conditions.

We also state that the photos were disclosed with the patient's consent.

Before scalp micropigmentation: 2024-08-29 / After scalp micropigmentation: 2024-10-16

This article is a real case of a patient who received treatment at New Hair Plastic Surgery Clinic.

The before-and-after photos each indicate the time they were taken, and they were taken under the same patient and the same conditions.

We also state that the photos were disclosed with the patient's consent.

Scalp micropigmentation is not a procedure that implants real hair, but one that injects tiny pigment dots into the scalp surface

so that it looks like closely shaved hair.

In simple terms, it is not a treatment that makes hair grow again, but a cosmetic method that makes the scalp exposed by hair loss less visible.

According to research, scalp micropigmentation is evaluated as a stable and minimally invasive procedure with a high level of satisfaction¹.

In particular, it can be a practical and quick alternative for patients for whom medication or hair transplantation has limitations.

Q2. Does it really work?

In a recent clinical study of 10 hair loss patients, three scalp micropigmentation

sessions were performed.

By gradually increasing the dot density from 40 dots/cm² in the first session → 60 dots/cm² in the second → 100 dots/cm² in the third,

the researchers maximized naturalness.

As a result, the average visual density score immediately after the procedure was 8.7 points, and patient satisfaction was 2.7 out of 3².

An astonishing 87.7% of patients said they were very satisfied, and the research team found a strong correlation between visual density and satisfaction².

Scalp micropigmentation is considered a highly complete visual coverage solution even if real hair does not grow.

Q3. What is important for scalp micropigmentation to look natural?

Factor	Description	Key Point
Needle thickness	If too thick, the dots look blurred	Around 0.2~0.3 mm recommended
Procedure depth	Too shallow and it fades easily; too deep and it may blur	Precisely in the upper dermis
Dot placement method	A fixed pattern looks artificial	Random distribution needed³
Presence of bleeding	Bleeding may cause pigment spread and discoloration	Follow a no-bleeding protocol²

An analysis supporting this notes that the procedure must be performed with a random distribution in which the pigment is not uniform, in order to avoid artificial evenness³.

The key technical philosophy of scalp micropigmentation is that the beauty of unevenness creates naturalness rather than uniformity.

Q4. What advantages does it have compared with medication or hair transplantation?

Category	Scalp Micropigmentation	Hair Transplantation	Medication
Procedure type	Pigment injection (non-surgical)	Follicle transplantation (surgery)	Hormone and blood flow regulation
Speed of effect	Immediate	6~12 months	3~6 months
Recovery period	1~2 days	1~2 weeks	None
Maintenance	Touch-up procedure after 2~3 years	Some re-transplantation needed	Continuous use required
Burden	Low	High	Moderate
Suitable candidates	Those who cannot undergo transplantation, cicatricial alopecia	Hair loss with sufficient donor area	Early-stage hair loss

In particular, for East Asians, the strong contrast between hair thickness and color can make transplantation limitations more noticeable,

and scalp micropigmentation has the advantage of supplementing low density, scars, and donor-area limitations.

There are also reports that scalp micropigmentation is an effective way to improve the appearance of cicatricial alopecia or diffuse hair loss after transplantation².

Q5. What are the aftercare instructions or precautions?

For about 3 days after the procedure, it is important to avoid water, sweat, and exposure to ultraviolet light.

Also, because the color stabilizes as 2~3 or more sessions accumulate, even if the color looks lighter in the middle, you should understand that this is a natural part of the process.

Because the pigment gradually fades over time, touch-up procedures are recommended every 2~3 years.

Before and after the procedure, it is also important to evaluate the condition of the scalp (seborrheic, dry, etc.) to prevent pigment spreading⁴.

Scalp Micropigmentation (SMP): A New Way to Help Ease Hair Loss Concerns?

Conclusion: Who is scalp micropigmentation suitable for?

• Patients who are concerned about side effects from medication

• Patients who do not have enough donor hair

• It is especially useful for patients who need coverage for scars or diffuse hair loss.

Although it does not make hair grow again, it is becoming established as a visual treatment that restores confidence and allows a quick return to daily life.

In the future, scalp micropigmentation will become a scientific solution for image restoration beyond treatment for hair loss patients.

Now it is time for hair to grow, this was Kim Jin-oh.

Pilsaengsinmo (必生新毛).

Written by: Kim Jin-oh of New Hair Plastic Surgery Clinic (Public Relations Director, Korean Association of Plastic Surgeons / Academic Director, Korean Society for Laser, Dermatology and Hair)

References

1. Rassman, W. R., Pak, J. P., Kim, J., & Estrin, N. F. (2015). Scalp Micropigmentation: A Concealer for Hair and Scalp Deformities. Journal of Clinical and Aesthetic Dermatology, 8(3), 35–42.

2. Liu, Q., Sun, M., Zhang, J., & Zhao, H. (2025). Scalp Micropigmentation Is an Effective Treatment for Localized Alopecia: Technical Analysis and a Series of Ten Case Reports. Journal of Cosmetic Dermatology, 24, e70375. https://doi.org/10.1111/jocd.70375

3. Dhurat, R. S., Shanshanwal, S. J. S., & Dandale, A. L. (2017). Standardization of SMP Procedure and Its Impact on Outcome. Journal of Cutaneous and Aesthetic Surgery, 10(3), 145–149.

4. Nguyen, B., Mervis, J. S., Romanelli, P., & Tosti, A. (2022). Scalp Micropigmentation: A Clinicopathologic Correlation. Skin Appendage Disorders, 8(5), 412–414.

[This post is written directly by a board-certified plastic surgeon for informational purposes in accordance with Article 56, Paragraph 1 of the Medical Service Act. Hair loss surgery and treatment may have side effects, and you should make a careful decision after consulting with a specialist.]