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20+ years of fat grafting surgery know-how!

Trademark service registered

COL-FAT fat transplantation

At Duhan Plastic Surgery,

we perform COL-FAT fat transplantation, which has a trademark service right registered for fat grafting surgery.

COL-FAT fat transplantation is Duhan Plastic Surgery’s intellectual property.

Overview of COL-FAT fat transplantation

INTRODUCTION OF COL-FAT FAT TRANSPLANTATION

What is Col-fat fat transplantation?

COL-FAT fat transplantation is a trademark created through the 20 years of fat grafting surgery know-how of Director Shin Duhan of Duhan Plastic Surgery, who is leading a new paradigm in dark circle clinics.

COL-FAT fat transplantation, developed by Director Shin Duhan of Duhan Plastic Surgery, is a new technique that strengthens collagen self-generating activation factors through the tunneling method and can address under-eye wrinkles at once.

It also uses highly concentrated autologous fat to increase the survival rate, with the advantages of high skin elasticity and durability.

Concept diagram of Col-fat fat transplantation

Micro-fat grafting takes place as the transplanted fat becomes vascularized from the surrounding area and takes hold.

The engraftment process takes at least three months, and during that time it may melt away because it has not been vascularized, or it may be compressed and disappear due to pressure from surrounding tissues.

Therefore, because volume increase cannot always be sufficiently achieved by fat quantity alone, COL-FAT fat transplantation is a method that promotes collagen generation on its own to increase the fat engraftment rate while creating youthful, elastic skin and contours.

Features of Col-fat fat transplantation

① It supplies serum, which is the nutritional source in the early stage of fat engraftment.

② It minimizes pressure on surrounding tissues and increases the engraftment rate.

③ The fat grafting is even, so it does not create uneven contours.

④ Because of self-generated collagen, the contour correction effect is greater.

⑤ The tissues and skin gain elasticity, which helps correct wrinkles and has a rejuvenating effect.

Comparison between general fat grafting and Col-fat fat transplantation

General fat grafting	Comparison	COL-FAT fat transplantation
Uneven contours may occur.	Contour	Uneven contours do not occur.
Engraftment may be uneven.	Engraftment pattern	Almost uniform engraftment
Collagen is not generated.	Collagen generation	High collagen generation
Relatively lower.	Engraftment rate	High engraftment rate, effective facial contour correction possible
Skin elasticity is hardly affected.	Skin elasticity	Skin elasticity increases through collagen generation.

Procedure for COL-FAT fat transplantation

SURGERY OF COL-FAT FAT TRANSPLANTATION

① Based on an accurately diagnosed surgical plan, the degree of under-eye hollowness is assessed, and the design also takes into account the bone structure surrounding the eyeball.

Among the various types of dark circles, if there is hollowness or hollowness accompanied by wrinkles, COL-FAT fat transplantation surgery is performed.

Duhan’s dark circle clinic’s COL-FAT fat transplantation is not simply a matter of transplanting fat; the surgery is carried out while considering the degree of under-eye hollowness and even the bone structure surrounding the eyeball.

The preoperative design determines the amount of fat to be transplanted and the width of the area to be transplanted based on comprehensively analyzed data.

② Fat is harvested from areas where your own fat is highly accumulated, such as the lower abdomen, waist, or thighs.

• Because local anesthesia (sleeping pain-relief anesthesia) is used, there is almost no pain.

• Fat is collected into a syringe using a thin liposuction cannula.

Fat is harvested from areas where your own fat is highly accumulated, such as the lower abdomen, waist, or thighs.

In the case of under-eye treatment, since it is not an area that requires a large amount of fat, the lower abdomen is usually the most common harvest site.

For fat collection, living fat cells are gently harvested using a syringe and a thin suction cannula.

If a large suction cannula is used, the fat is aspirated roughly, which makes delicate grafting difficult, so it is better to use a thin suction cannula.

During suctioning, the fat is collected over a wide area in a dispersed manner so that no contour irregularity forms in the abdomen.

③ The harvested fat is centrifuged to remove impurities (anesthetic solution, oil, blood, etc.), and then transferred into a 1cc syringe.

The harvested fat is placed in a centrifuge to remove impurities.

The impurities include blood, serum, anesthetic solution, oil, moisture, and so on, and the components purified by centrifugation are mainly blood, anesthetic solution, and moisture.

Oil and other components are removed through a two-step natural absorption method, and then transferred into a 1cc syringe.

"Just a moment here!

The needle used with the 1cc syringe is fitted with the micro-needle (micro grafting cannula) developed in-house.

The micro-needle is a special grafting cannula used only at our clinic, enabling ultra-precise transplantation."

④ The micro-fat grafting cannula is inserted along the planned line under the eyes to perform the grafting.

The amount transplanted under the eyes varies by individual, and an appropriate amount is transplanted.

The graft is placed within or above the orbicularis oculi muscle layer to create a smooth contour and a high engraftment rate.

Fat from which almost all oil content has been removed is called concentrated fat.

Concentrated fat is transferred into a 1cc syringe and fitted with the in-house micro-needle (micro grafting cannula).

The micro-needle is a special grafting cannula used only at our clinic, enabling ultra-precise transplantation.

The procedure is performed by injecting into the under-eye treatment area under local anesthesia, and the in-house ultra-precise micro-needle evenly and carefully transplants it along the designed area.

It is important to graft an appropriate amount of fat in a dispersed manner rather than in clumps for fat engraftment and the expression of a smooth contour.

⑤ After the grafting, you can return to daily life immediately, and face washing is possible from the next day.

Duhan COL-FAT fat transplantation has almost no swelling, allowing a quick return to daily life, and the highly concentrated autologous fat increases skin elasticity and durability.

Understanding under-eye micro-fat grafting

Where does under-eye micro-fat grafting take place?

Understanding the anatomy of dark circles under the eyes and fat grafting

There are two causes of dark circles in the photo above.

One is the shadow created by under-eye hollowness, and the other is dark circles caused by pigmentation of melanin in the skin.

For correction, micro-fat grafting is performed on the hollow area to improve the dark shadow effect, and yellow fat is transplanted between the orbicularis oculi muscle and the skin to dilute the melanin pigment and restore the dark color closer to the skin tone.

In other words, the goal is to make the yellow fat, rather than the black color of the skin, project outward as a skin-like tone.

The success of the procedure depends on how smoothly and precisely the appropriate amount of fat is transplanted.

Understanding the anatomy of under-eye wrinkles and fat grafting

The photo above shows an under-eye hollow wrinkle line, an S-shaped wrinkle line with no sagging of the skin.

To correct this, fat is transplanted into the lower layer beneath the wrinkle line skin, lifting the wrinkle up to the level of the surrounding skin tissue and smoothing it out.

After fat grafting, the dark shadow effect caused by the wrinkle line disappears and the dark circles improve.

In the field of dark circles,

why is Director Shin Duhan drawing attention?

There are not many clinics where a board-certified plastic surgeon provides treatment,

and that have long-standing know-how and

clinical experience in the field of dark circles.

Director Shin Duhan of

Duhan Dark Circle Clinic

has more than 20 years and over 25,000 surgical experiences,

and has registered trademark service rights for

COL-FAT fat transplantation,

so he can be said to be a master in the field of dark circles.

DARK CIRCLE MASTER

Dark Circle Master - Director Shin Duhan

More than 20 years and more than 25,000 clinical surgeries

Since opening Duhan Plastic Surgery and Duhan Dark Circle Clinic,

Director Shin Duhan has accumulated more than 25,000 clinical surgical experiences to date.

COL-FAT fat transplantation with registered trademark service rights

Through continuous research and development in fat grafting surgery,

Director Shin Duhan obtained registered trademark service rights for COL-FAT fat transplantation.

Director Shin Duhan, recognized by the media

Domestic and international media are focusing on Director Shin, a leader in the dark circle field.

Ongoing research activities

At domestic and international academic societies and seminars, including international plastic surgery conferences and plastic surgery symposia,

new research findings on dark circles have been presented.

DOCTOR MESSAGE

Dark circles are a common yet easily overlooked area of plastic surgery.

Many people repeatedly try various procedures such as lasers or whitening treatments to address under-eye hollowness, hollow wrinkles, or dark circles.

However, the most common causes of dark circles are often not the skin color itself, but the projection of blood vessels or the muscle layer under thin skin, and shadowing caused by hollowness.

Accordingly, we are working to make the under-eye area brighter through correction with micro-fat grafting, and by establishing the concept of under-eye micro-fat grafting, we hope that many people struggling with dark under-eye symptoms will find brighter eyes.

Press materials and videos

BROADCASTING & MOVIE

Academic activities

INSTITUTE ACTIVITY

The special reasons of Duhan Dark Circle Clinic!

SPECIAL MERIT

As a clinic specialized in dark circles, we have extensive experience and know-how.

We provide precise treatment according to the cause of dark circles.

Under-eye fat grafting is performed with a high engraftment rate and no side effects.

A thin micro-fat grafting cannula is used to create an even contour.

No incision is made at the treatment site to avoid leaving a scar.

A two-step purification process uses concentrated fat close to 100%, resulting in a high engraftment rate.

The cost is reasonable and economical.

We have a systematic system for dark circle treatment.

Thorough aftercare minimizes customer complaints.

We treat customers in a friendly clinic based on honesty and trust.

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