Dark Circles and Tear Troughs: Causes and Treatments

What causes dark circles?

Dark circles describe any darkening beneath the eyes, but that darkness can come from very different sources. Some people have extra pigment in the skin, often brownish and present from a young age. Others have very thin lower-lid skin through which the purplish tone of the underlying muscle and small blood vessels shows. And for many, what looks like a dark circle is actually a shadow, cast by a groove called the tear trough or by a bag of fat just above it.

The distinction matters because a treatment that helps one type may do nothing for another. Skin boosters will not fill a hollow, and filler will not change pigment. Most people have a mix, and identifying the dominant cause is the foundation of a sensible plan. It also protects you from spending time and money on treatments that were never going to reach the true source of the darkness, which is a frustration many patients describe before their first consultation.

The anatomy of the tear trough

The tear trough is the groove that runs from the inner corner of the eye downward and outward, marking the junction between the lower eyelid and the cheek. Beneath it, the skin is attached quite firmly to the bone of the orbital rim by a ligament. Above the groove sits the lower eyelid with its fat, held back by the orbital septum. Below it sits the cheek, with its own fat pads.

In youth, the cheek is full and the transition is smooth. With age, and in some people from early adulthood, cheek volume diminishes and descends, while the lid fat may bulge forward. The fixed ligament holds the skin down between them, and the groove deepens. Overhead light then casts a shadow into it. Meanwhile, the lower-lid skin itself is among the thinnest on the body, and the orbicularis oculi muscle beneath it is rich in blood vessels, which gives thin skin its bluish or purplish hue.

How dark circles are assessed

Dr. Kim Jun-young, representative surgeon, uses a few simple observations to separate the causes. When the skin is gently stretched, pigment remains visible while vascular color may lighten. When light is directed from below instead of above, a shadow from a hollow disappears, while pigment does not. Looking upward brings under-eye fat forward and shows whether bags contribute.

He also assesses skin thickness, tear-trough depth and length, cheek volume and lower-lid tone. He will ask how long the darkness has been present, whether it runs in your family, and whether it changes with sleep, allergies or the seasons. The result is a clear picture of what proportion of the darkness is structural and what proportion lies in the skin. Clear photographs taken in natural daylight, without makeup, are a useful starting point if you are beginning from abroad.

Treatment options for dark circles at Will Be

Skin boosters for thin skin

For thin, crepey lower-lid skin, treatments such as Rejuran or the collagen stimulator Juvelook may gradually improve skin thickness and texture over a course of sessions, softening the visibility of vessels beneath.

Filler

For a mild tear trough, a small amount of dermal filler placed deeply can reduce the shadow. The area is delicate: too much or too superficial a placement can cause puffiness or a bluish tint.

Under-eye fat grafting

When hollowing is more marked, under-eye fat grafting uses your own purified fat. Beyond volume, grafted fat may slightly thicken the tissue over the muscle.

Fat repositioning or lower blepharoplasty

When bags sit above the groove, under-eye fat repositioning moves the bulging fat into the trough, correcting both in one step. If skin is loose, lower blepharoplasty may be more appropriate.

How to choose between filler, fat grafting and fat repositioning

If the main problem is a shallow groove and you prefer minimal downtime, filler can be a reasonable choice, provided it is placed conservatively. If the hollow is deeper or you would rather use your own tissue, fat grafting offers natural softness, with the understanding that some of the fat will be absorbed. If bags and a groove exist together, repositioning the fat usually addresses the cause more directly than adding volume below a bulge.

Our comparisons of filler and fat grafting and fat repositioning and fat grafting explain these differences side by side. Dr. Kim will help you weigh them against your anatomy and schedule.

When the cause is pigment

Pigmented dark circles, common in people with medium to deeper skin tones and often hereditary, sit within the skin itself. Structural treatments cannot remove pigment, and it is important to be honest about that. Sun protection, gentle skin care and treating any allergy or habitual rubbing that worsens pigmentation all help. Dr. Kim will tell you if pigment is the main contributor, so that you do not undergo a procedure that cannot change it.

In many patients, however, pigment is only part of the picture. Reducing the shadow from a hollow often makes remaining pigment far less noticeable, because the darkness is no longer deepened by shade.

What realistic improvement looks like

For most patients, successful treatment means lighter, brighter under-eye areas in everyday light, less need for heavy concealer and fewer comments about looking tired. Complete elimination of all darkness is rarely realistic, especially where pigment or very thin skin is involved.

Skin boosters show gradual change over weeks. Filler shows immediately, with mild swelling for a few days. After fat grafting or fat repositioning, swelling and bruising typically settle over one to two weeks, with the contour refining over several months. Risks include lumps, irregularity, puffiness, partial absorption of fat, asymmetry and bruising. Individual results vary.