The reason why the results of lasers like Mark-Vu in Gangnam differ lies in the skin diagnosis before the procedure.

April 14, 2026

Hello!

I am Dr. Information Hwang from Cleor Clinic Gangnam Branch.

"I'm not sure if it's melasma or blemishes.

I don't even know what kind of treatment I should get."

"My pores seem large,

and my skin looks dull,

but I have no idea where to start."

You've come to a dermatology clinic,

and while it might sound strange

that you don't actually know your own skin condition,

this is actually very common.

The mirror we look at every day

looks different depending on the lighting,

and there is no way to see

deep into the skin with the naked eye.

That is why at Cleor Clinic Gangnam Branch,

we perform a Gangnam Mark-Vu skin analysis before treatment.

Today, I will explain exactly what Mark-Vu is,

who needs it,

and what treatments it works well with.

What kind of device is Gangnam Mark-Vu?

Gangnam Mark-Vu is a skin analysis systemthat uses an 18-megapixel high-definition lens

and 4 types of LED light sources

to precisely scan the skin condition.

Most general skin diagnostic devices

use a 'flash lamp' method.Simply put, it's similar to the flash going off when taking a photo,

and because it emits a strong, instantaneous light,

it can cause reflections or blurring,

making the skin look distorted compared to its actual state.

Mark-Vu is different.

It uses a continuous light source method with LEDs,

capturing the skin in a state where light is evenly distributed,

just like taking a photo under natural light.

Thanks to this, the actual skin condition

is rendered much more realistically.

With the addition of a polarization filter,it can precisely capture

fine wrinkles, redness, and even pigmentation deep in the skin

that are not easily visible to the naked eye.

What can you find out with Mark-Vu?

Gangnam Mark-Vu uses a total of 4 light sources

to analyze 12-13 skin problems simultaneously.

Normal Light

— Checks overall skin condition, pore size, skin texture, and color.

Gloss Light

— Checks sebum distribution, identifies oily/dry skin,

  • and can even predict future wrinkles.UV Light

  • — Identifies hidden pigmentation invisible to the eye,melanin deposits, and acne bacteria (porphyrin).

Polarized Light

  • — Identifies redness, brown pigmentation, distinguishes between epidermal and dermal pigmentation,and captures hidden melasma deep in the skin.

By synthesizing the analysis results of these 4 light sources,

  • you can identify pores, wrinkles, future wrinkles, pigmentation,melanin, skin tone, dark circles, redness,

brown pigmentation, sebum, porphyrin, and even skin radiance

all at once.

The most important thing is that

because the analysis results are recorded in numbers and images,

you don't have to rely on feelings or intuition.

👉

You can decide the direction of treatment

based on objective data.

When is Mark-Vu especially necessary?

There are cases where Gangnam Mark-Vu skin analysis is particularly helpful.When you cannot distinguish between melasma and blemishes

Even if melasma and blemishes look similar to the naked eye,their depth and causes are different,

so the treatment methods are completely different.

Through UV light and polarized light analysis,

we must first determine whether it is epidermal or dermal pigmentation

and how deep the melanin is

in order to select the correct laser.

When you have sensitive skin and don't know what treatments you can receive

By analyzing redness levels and skin barrier status,we can determine how much irritation your skin can currently withstand.

This helps prevent cases where

skin problems actually worsen

after receiving a laser treatment without proper assessment.

When you want to check how effective the treatment was

Another important role of Gangnam Mark-Vu

is the comparison before and after treatment.

👉 Mark-Vu allows you to save images

taken under the same conditions by date

and compare two images side-by-side,

so you can check even subtle changes that are difficult to feel with the naked eyethrough numbers and images.

Treatments that are good for checking before and after differences with Mark-Vu

We would like to introduce representative treatments

where you can objectively check the changes before and after

using Gangnam Mark-Vu skin analysis.Pigment Lasers (Pico Toning, Laser Toning, etc.)

For treatments aimed at improving melanin pigmentationsuch as melasma, blemishes, and freckles,

you can see the changes in pigment density and distribution

before and after treatment with your own eyes

through Mark-Vu's UV light and polarized light modes.

The big advantage is that you can compare with actual figures

rather than just feeling like "it seems better."

Pore/Sebum-related treatments (Aqua Peel, Pico Fraxel, etc.)

  • By comparing sebum distribution and pore size

before and after treatment using gloss light analysis,

you can objectively grasp the degree of improvement.

This is especially useful for those who say,

"I think my pores have shrunk, but I'm not sure."

Redness/Vascular-related treatments

By using the polarized light mode,

you can check the changes in the range and density of redness as an image,which helps in tracking the progress of the treatment.

  • Lifting/Elasticity-related treatments (Thermage, Ultherapy, etc.)

You can record the skin condition before treatment

through the future wrinkle prediction function and skin texture analysis,

and use it as a benchmark to compare subsequent changes.

How is the Mark-Vu analysis performed?

After cleaning your skin thoroughly before the procedure,

  • you sit in front of the Mark-Vu device

and take photos sequentially with 4 light sources.

The shooting itself only takes a few minutes

and there is no pain or irritation.

After shooting, while looking at the analysis result images and data together,

you will check with the medical staff

what needs to be addressed first

in your current skin condition.

Many people say that after talking while looking at data instead of feelings,

it was the first time they truly understood their skin,

saying, "Ah, so this was my skin condition."

⚠️

Precautions for Gangnam Mark-Vu

Mark-Vu shooting is most accurate when performed

in a cleansed state with nothing applied after washing your face.

If moisturizers, sunscreen, or makeup remain,

it can affect the light source response,

which may distort the analysis results.

Also, Mark-Vu is merely an auxiliary tool

to understand skin condition and set the direction for treatment.

Based on the analysis results,

the final treatment decision must always be made through a direct consultation with the medical staff.

Frequently Asked Questions

Q. Can anyone receive the Gangnam Mark-Vu analysis?

A. Yes, anyone from those with skin problems

to those who are simply curious about their skin condition

can receive it.

In fact, it is often the case that Mark-Vu analysis is performed first

for the purpose of understanding the current state before receiving treatment.Q. Can I also find out my skin age from the Mark-Vu analysis results?

A. Yes, through the analysis results,

you can check your skin condition compared to the average of your age group and an estimated skin age.

However, this is a reference figure

and is judged comprehensively along with the actual skin condition.

Q. Can Mark-Vu distinguish between melasma and blemishes?

A. Because it captures epidermal and dermal pigmentation

by making them react differently to each light source,

it helps in identifying pigment types that are difficult to distinguish with the naked eye.

The accurate diagnosis is determined by the medical staff

based on the shooting results.

Q. Can I receive Mark-Vu after treatment?

A. Yes, it is also used to compare changes

by shooting under the same conditions before and after treatment.

Especially for pigment lasers and pore treatments,

where it is difficult to feel the changes with the naked eye,

Mark-Vu before and after comparison is useful.

Before receiving treatment at a dermatology clinic, the first thing you need

is to accurately know your skin condition.

Identifying where and what kind of approach is needed

based on objective data, not feelings or guesses,

is the first step to satisfactory results.

At Cleor Clinic Gangnam Branch, through Gangnam Mark-Vu skin analysis,

we will check and guide you on what your skin actually needs right now.

Please feel free to contact us for any questions.

특히 색소 레이저, 모공 시술처럼

육안으로 변화를 체감하기 어려운 경우에

마크뷰 전후 비교가 유용합니다.

피부과에서 시술을 받기 전, 가장 먼저 필요한 건

내 피부 상태를 정확히 아는 것입니다.

느낌이나 추측이 아닌 객관적인 데이터를 바탕으로

어디에 어떤 접근이 필요한지를 파악하는 것이

만족스러운 결과로 이어지는 첫 번째 단계입니다.

클레오르 의원 강남점에서는 강남 마크뷰 피부 분석을 통해

지금 내 피부에 실제로 필요한 것이 무엇인지를

함께 확인하고 안내해드리겠습니다.

궁금한 점은 편하게 상담 문의 주시기 바랍니다.