Time to
Eterna Reset
Rebirth of Youth from the Cellular Level 
Time passes by for everyone
Fair but losing youth
Speed varies from person to person.
I always think.
The cells come back to life
If the body regains its power to heal itself
Anyone still healthy
They say you can be naturally beautiful.


Time passes for everyone,
but aging takes a different toll on each of us.
The glow of youth fades at
its own pace for every individual.
I often wonder,
What if our cells could be revived,
and our bodies regain their innate healing power?
They say that those who are healthy
can radiate natural beauty.
Hidden in the province The doctor who discovered the secret of youth
Director Hwang Ui-gyeong
hello.
My name is Hwang Eui-kyung,
a specialist in family medicine
I graduated from Yonsei University College of Medicine.
After obtaining a specialist degree in family medicine from Gangnam Severance Hospital,
He worked as a professor at the Obesity and Body Shape Center at Seoul Baek Hospital for a long time.
As a university professor, I was studying
the 'fat' of obese patients.
Many people shared common concerns.
I want to find the answer to that question
I started researching and
it's been over 20 years now.
In the process, I realized that fat is not something that should simply be eliminated.
Rather, I realized that it was the key that could truly restore my youth.

Everyone wants natural,
long-lasting
beauty.
I have felt this for a long time while consulting with patients. People do not simply want to get rid of wrinkles, but they want to look young and healthy
in the mirror.
Botox and fillers sometimes feel artificial, and
leave a feeling of regret that cannot be filled with regular skin boosters
So I had to find a way to fundamentally rejuvenate
the skin itself, a way that was natural and effective.
I have been studying this method
since I was a college professor.
We have achieved the most natural and healthy beauty through stem cell and PRP treatments.

Scientific Reasons
Why Adipose Stem Cells
Are the Most Excellent
Stem Cells for Skin
First.
Adipose stem cells are located in the dermis layer,
which determines the elasticity of the skin.
It is derived from the 'mesoderm'. The mesoderm is made up of muscles, bones, cartilage, blood vessels, etc. It is the tissue that forms the structure and is most similar to the dermis layer of the skin.
The dermis is made up of blood vessels, nerves, fibroblasts, and connective tissue (collagen, elastin). It is composed of, and regeneration and resilience play an important role. Adipose stem cells derived from 'mesoderm' are suitable for this function.
That is, adipose stem cells are different from other stem cells. These are the cells best suited for skin regeneration.
Second.
When the same amount (50ml) of adipose stem cells was collected, Up to 10 times more than bone marrow stem cells and more than blood stem cells
You can get up to 100 times more cells.
A large number of cells means that when administered to the skin, This means that the regeneration effect is more powerful.
I have been doing this for 20 years
for these two reasons.
We have been intensively researching adipose stem cells.

For those who find skin boosters insufficient and
stem cells burdensome
PRP (Plant Growth Factor) is a method that uses growth factors extracted from blood.
It is more powerful than general skin boosters and helps skin regeneration naturally
Less burdensome than stem cells,
Many people use it because it is more effective than skin boosters. As a first step, choose PRP treatment.
Those who are satisfied with the results
Many people then move on to stem cell treatment.
PRP is never a second choice
For true beauty
I think it's a wise choice.
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.
More shots with final designs coming soon.
You can check the attachment for a full view..More shots with final designs coming soon.
we streamline the process without having to make multiple mockups.
This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.
Style tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
We are working on an exciting project for a company in the investment business. Stay tuned!
we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.
More shots with final designs coming soon.
You can check the attachment for a full view..More shots with final designs coming soon.
we streamline the process without having to make multiple mockups.
This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.
Style tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
We are working on an exciting project for a company in the investment business. Stay tuned!
we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.

Not a simple procedure
「Designed Skin Regeneration 」
It starts from.
When it comes to stem cell treatment, rather than simply injecting a certain number of cc,
it is important to first design what kind of change will most naturally suit your face.
Before the procedure, I check the patient's facial structure, skin condition, and
left-right balance. After detailed analysis, we design the treatment in the most ideal direction.
This sophisticated design creates
✔ Natural results
✔ Long lasting effect
✔ High satisfaction level is achieved
without re-treatment.
A 'skin scaffold' must be built
The procedure takes a long time.
The key to stem cell or PRP treatment
is how to design this scaffold (skin structure).
If this structure is well formed,
✔ Increased cell survival rate
✔ Growth factor absorption rate is maximized
✔ The skin regeneration effect lasts longer.
So, before the procedure, I first design the skin structure that best suits the patient and then precisely inject stem cells or PRP onto it.
This is the essential difference between simple procedures and ‘designed regeneration’.

Dr. Hwang Eui-kyung,
who teaches stem cell treatment to doctors
From my days as a professor at the Seoul Baek Hospital Obesity Center to now Many medical professionals come to me in person to learn my
know-how.
I have been researching and teaching at a university hospital for 20 years. Experience of performing over 10,000 procedures It is the greatest asset that has made me who I am today.

The most demanding
Treatments chosen by people
Stem cell treatment is not just a simple cosmetic procedure. Hollywood actors, global celebrities, and owners of large corporations are the ones who take the most thorough care of their appearance and condition. This is a premium treatment chosen
by the top 1%.
What they value more than immediate change is
It is ‘sustainable beauty’ that recovers from the cells.
Yerain’s stem cell treatment is designed based on that value.
Even if it is the same stem cell treatment The results may be completely different.
More than what you do
Because who performs the
procedure is more important.
That 's why I'm with the people who love me the most. I have socially influential people with me.
Now it's your turn.



In a quiet town,
a doctor has uncovered the secret to youthful vitality.
Director Hwang Ui-gyeong
Hello. My name is Dr. Hwang Eui-kyung, a board-certified family medicine specialist.
I graduated from Yonsei University College of Medicine,
and completed my residency in family medicine at Gangnam Severance Hospital.
I later served for many years as a professor at the Obesity and Body Shape Center
at Seoul Baek Hospital.
During my academic career, I studied fat-related mechanisms in obese patients—
and I began to hear the same concerns from many of them, again and again.
In search of that answer, I began my research—and now, more than 20 years have passed.
Through that journey, I came to a realization: Fat is not just something to eliminate.
It may, in fact, be the very key to restoring true youth.


Everyone desires beauty
that is natural and long-lasting.
Over years of patient consultations, I’ve come to understand this clearly:
People don’t just want to erase wrinkles—
they want to see a version of themselves in the mirror
that looks genuinely youthful and healthy.
Botox and fillers can sometimes feel artificial,
and ordinary skin boosters often leave behind a lingering sense of dissatisfaction.
That’s why I felt compelled to find a better way—
a way to rejuvenate the skin at its core,
naturally and effectively.
I have been researching this approach
since my days as a university professor.
Through stem cell and PRP treatments
we pursue a kind of beauty that feels
as natural and healthy as it looks.

Why Adipose-Derived Stem Cells
Are the Most Effective for
Skin Regeneration – Scientific Basis
First.
adipose-derived stem cells originate from the mesoderm—the same embryonic layer that forms the skin’s dermis.
The mesoderm is responsible for developing structural tissues such as muscles, bones, cartilage, and blood vessels,
making it biologically closest to the dermis layer in composition and function.
The dermis is composed of blood vessels, nerves, fibroblasts, and connective tissues
such as collagen and elastin. It plays a critical role in skin regeneration and elasticity.
Because adipose stem cells come from the mesoderm,
they are uniquely suited to support these functions within the dermis.
In other words, adipose-derived stem cells are fundamentally different from other
types of stem cells— they are the most optimal cells for skin regeneration.
Second.
When harvesting the same volume (50ml) of stem cells,
adipose tissue yields up to 10 times more cells than bone marrow,
and up to 100 times more than blood.
This abundance of cells means that when applied to the skin,
the regenerative effects are significantly stronger and more reliable.
For these two scientific reasons,
I have dedicated over 20 years to focused research on adipose-derived stem cells.

If skin boosters feel insufficient,
and stem cell therapy feels
too overwhelming—
PRP may be the answer for you.
PRP (Platelet-Rich Plasma) is a treatment that uses growth factors extracted from your own blood. It promotes natural skin regeneration and delivers stronger results than typical skin boosters.
Less intensive than stem cell therapy,
yet more effective than standard boosters,
PRP is often chosen as the first step in skin rejuvenation.
Many patients who are satisfied with their PRP results
eventually choose to proceed with stem cell therapy as a next step.
PRP is never a second-best option.
For those seeking true, lasting beauty,
it is a wise and thoughtful choice.
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.
More shots with final designs coming soon.
You can check the attachment for a full view..More shots with final designs coming soon.
we streamline the process without having to make multiple mockups.
This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.
Style tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
We are working on an exciting project for a company in the investment business. Stay tuned!
we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.
More shots with final designs coming soon.
You can check the attachment for a full view..More shots with final designs coming soon.
we streamline the process without having to make multiple mockups.
This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.
Style tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.
We are working on an exciting project for a company in the investment business. Stay tuned!
we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!
We design and build digital products people enjoy using...
Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...
We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...
As an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs
We are working on the UX/UI design for a large hotel owners and hospitality management company.
Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.

Not just a procedure—
it all begins with
「Designed Skin Regeneration 」
When it comes to stem cell treatments,
the key is not how many cc are injected,
but how precisely we design the changes
that will look most natural on your face.
Before each procedure,
I carefully analyze the patient’s facial structure, skin condition, and symmetry.
Based on this detailed assessment,
I design a treatment plan tailored to the most ideal and harmonious outcome.
This sophisticated approach delivers:
✔ Natural-looking results
✔ Long-lasting effects
✔ High satisfaction—without the need for repeat treatments
For skin regeneration to truly last,
a “scaffold” must first be built beneath the surface.
The success of stem cell or PRP treatment
depends on how well this structural foundation— this scaffold—is designed.
When the scaffold is properly formed:
✔ Cell survival rates increase
✔ Growth factor absorption is maximized
✔ Regenerative effects last significantly longer
That’s why, before any procedure,
I first design the skin structure that best fits each patient’s needs.
Only then do I precisely inject stem cells or PRP onto this foundation.
This is what sets simple procedures apart
from what I call “designed regeneration.”

Dr. Hwang Eui-kyung —
the doctor who teaches stem cell therapy
to other doctors.
From my time as a professor at the Seoul Baek Hospital Obesity Center to today,
many medical professionals continue to visit me in person to learn my techniques and philosophy.
With over 20 years of research and teaching experience at a university hospital,
and more than 10,000 clinical procedures performed,
this journey has become the foundation of who I am today.

Chosen by the Most Discerning Individuals
Stem cell therapy is far more than a simple cosmetic procedure.
It’s a premium treatment trusted by Hollywood actors, global celebrities,
and high-profile business leaders—
those who take the greatest care of their appearance and vitality.
What they value is not just instant results,
but sustainable beauty that begins at the cellular level.
At Yeraine, our stem cell treatment is designed with that same philosophy in mind.
Even with the same stem cell treatment,
the results can be completely different.
Because in treatments like these,
what you do matters—
but who performs it matters even more.
That’s why I’m trusted by those who value themselves deeply,
and by individuals with real influence in society.
Now it's your turn.

Copyright YELINE Clinic . All rights reserved.
YELINE Clinic ㅣ Representative: Hwang Eui-Kyung
6F, 812 Nonhyeon-ro, Gangnam-gu, Seoul (Sinsa-dong)
Business Registration Number: 509-08-29043