Under-Eye Fat Grafting in Seoul

What is under-eye fat grafting?

Under-eye fat grafting is a procedure that restores volume beneath the eyes using your own fat. A small quantity is harvested with a fine cannula, processed to separate healthy fat cells from fluid and oil, and then injected in very small amounts into the hollow areas of the lower eyelid and upper cheek. Because it is your own tissue, fat that establishes a blood supply becomes a living part of the area.

It is used to soften sunken or hollow eyes, deep tear troughs and the shadowed look that often reads as fatigue. At Will Be, fat grafting uses a micro-fat technique with PRP, described in detail on the PRP micro fat grafting page.

Why do under-eyes become hollow?

Hollowness has several causes. Some people inherit a deep bony socket or a low cheek structure, so the under-eye looks sunken from youth. With age, fat in the midface diminishes and descends, the bony rim of the eye socket slowly widens, and skin thins, so shadows deepen. Previous lower eyelid surgery in which much fat was removed can also leave a hollow. Significant weight loss is another common factor.

When the problem is a deficit of volume rather than a bulge in the wrong place, adding volume makes more sense than moving existing fat. That is the key difference between fat grafting and fat repositioning.

Who is a good candidate?

• Hollow or sunken under-eyes with little or no bulging fat
• Deep tear troughs or a sharp line between lower lid and cheek
• Hollowness after previous lower eyelid surgery
• A wish to use natural tissue instead of filler
• Enough body fat to harvest a small amount; very little is needed
• Understanding that fat retention varies and a second session may be advised

It may not be suitable if under-eye bags are the main issue, because adding volume above a bulge can accentuate it; if the skin under the eyes is extremely thin, which makes small irregularities more visible; if there is active filler in the area; or if you are expecting large weight changes soon. People who smoke should stop, as smoking reduces graft survival.

Micro fat and PRP, explained

Fat used under the eyes is handled differently from fat used in larger areas such as the cheeks. The under-eye skin is among the thinnest on the face, so large fat particles can be felt or seen as small bumps. Processing fat into micro fat, very small particles that pass through fine cannulas, allows it to be spread evenly in thin layers where it blends with surrounding tissue.

PRP, or platelet-rich plasma, is a concentrate of platelets prepared from a small sample of your own blood. Platelets carry growth factors involved in normal wound healing. PRP is combined with fat grafts by many surgeons with the aim of supporting the healing environment around the graft. Evidence about how much it changes retention is still developing, so it is more accurately understood as a supportive element rather than a promise. Your surgeon will explain how it is used in your plan.

What a natural result looks like

A well-judged under-eye graft is quiet. The hollow is softer, the line between lid and cheek is less sharp, and light falls more evenly across the area, so the face looks rested. It should not look puffy or swollen once healing is complete, and it should move naturally when you smile. Because fat is living tissue, it can change slightly with significant weight gain or loss. Aiming for a gentle improvement rather than complete filling tends to produce the most natural and stable outcome.

How Dr. Kim approaches design at Will Be

At Will Be, Dr. Kim Jun-young personally performs the consultation, design, harvest, injection and follow-up. He maps the hollows under overhead light, where shadows are most revealing, and considers skin thickness, the relation between lid and cheek, and whether bulging fat is also present. Often the most natural-looking under-eye comes from treating the whole transition from lower lid into cheek, not only the deepest point.

The design favors modest amounts and many tiny deposits. Under the eyes, the skin is thin and the area moves with every blink and smile, so restraint and even distribution matter more than volume. The aim is a softer, rested look that suits your face.

How is the procedure performed?

1. Marking of hollows and the planned donor area.
2. Anesthesia. Local anesthesia with IV sedation is common.
3. Fat harvest. Through a tiny opening, usually on the inner thigh or abdomen, a small amount of fat is gently collected with a fine cannula and low pressure to protect the cells.
4. Processing. The fat is purified to remove fluid, oil and damaged cells, and refined into very small particles (micro fat) suitable for delicate areas. PRP (platelet-rich plasma), prepared from a small sample of your blood, may be combined with the graft.
5. Injection. Using a blunt micro-cannula, the fat is placed in tiny threads at several depths, often deep near the bone and in the tear trough, so each droplet is surrounded by tissue that can nourish it.
6. Finishing. Entry points are closed or left to heal naturally; the donor site is dressed.

Why doesn't all the fat survive?

Transplanted fat has no blood supply at first. For the first days it survives by absorbing nutrients from surrounding tissue, until new tiny vessels grow in. Fat cells too far from nourishing tissue may not survive and are gradually reabsorbed. This is why grafting uses small droplets spread across many layers, and why a portion of grafted volume is lost over the first months. How much remains differs from person to person. It is assessed around three months, and a touch-up is sometimes planned. See fat grafting recovery and fat survival.

Anesthesia and procedure time

The procedure typically takes one to one and a half hours, including harvest, processing and injection. It is performed as a day procedure under local anesthesia, often with light sedation.

How long does recovery take?

Risks and how they are minimised

Risks include bruising, swelling, uneven results, lumps or visible irregularities (more noticeable under thin skin), over- or under-correction, reabsorption requiring a touch-up, small oil cysts, infection, and donor-site bruising or contour change. Very rarely, injection into a blood vessel can cause serious complications, including vision problems. Individual results vary.

At Will Be, risk is reduced by gentle harvest, careful processing into fine micro fat, blunt cannulas, slow injection in tiny amounts, deep and even placement, and modest total volume. Follow-up with the same surgeon allows any irregularity to be assessed early.

Combining with other procedures

Fat grafting is often combined with lower blepharoplasty or fat repositioning when bulging and hollowing coexist, or with grafting to the cheeks and temples when facial volume loss extends beyond the eyes. It can also help after revision of previous lower eyelid surgery, where too much fat was removed and the lid now looks hollow. Combined plans are recommended only when each element clearly serves your anatomy.

Preparing and caring for the area

Before the procedure, share a full list of your medicines, keep your weight stable, stop smoking, and pause medicines and supplements that increase bruising as advised. Afterwards, avoid pressing on or massaging the under-eye area, sleep with your head raised, avoid saunas and strenuous exercise for about two weeks, and wear any compression advised for the donor site.

Staying in Korea as an international patient

Plan about 5–7 days in Seoul for consultation, the procedure, an early check and a final review. Because fat survival is judged over months, follow-up photos from home around the three-month mark help your surgeon decide whether any refinement is worthwhile. If a second session is advised, it can often be planned to coincide with a later visit to Korea. In the meantime, keep your weight stable, avoid smoking and protect the area from strong sun, since all three influence how the graft settles.