Under-Eye Hollows and Dark Circles: Is Adding Volume Enough?
Under-eye hollows can make you look tired even after enough sleep. Filler may seem an obvious answer, but this area has very thin skin and complex anatomy. Understanding why it is hollow matters more than deciding what or how much to inject. Separating the causes of hollowing and dark circles helps us combine volume restoration with skin support for a natural result.
Why do under-eye hollows develop?
Lower-eyelid skin is among the thinnest on the face. Age-related loss of dermal collagen and HA makes it thinner still. At the same time, supporting ligaments loosen and cheek fat descends, accentuating the boundary between the lower eyelid and cheek: the tear trough.
A 2023 review notes that tear-trough hollowing often coexists with malar mounds, eye bags, and dark circles. It emphasizes restoring midface volume as well as the under-eye area to improve both local results and the overall face. That is why we also assess the front of the cheek.
Are dark circles and under-eye hollows the same?
No. A systematic review groups dark circles into pigmentary, structural, vascular, and mixed causes. Hollowing is a structural cause: a shadow makes the area look dark. Different causes respond to different treatments, so identifying them comes first.
Common patterns and approaches are listed below.
| Type | What you see | A simple clue | Common approaches |
|---|---|---|---|
| Structural hollowing | A depression with shadowing | Looks darker under overhead light | Volume restoration and skin boosters |
| Pigmentary | Brown or dark-brown discoloration | Color remains when the skin is stretched | Pigment laser and sun protection |
| Vascular | Blue or red vessels show through | Color fades with pressure | Improve skin thickness and address vessels |
| Protruding fat | Bulging under-eye fat | More apparent when looking upward | Surgical consultation according to severity |
The review concluded that filler and fat transfer help volume-related dark circles, while surgery is more effective for substantial excess skin.
Will filler alone solve a hollow?
Filling can help a clear depression. A systematic review of under-eye filler reported high satisfaction and effects lasting 8–12 months. Thin skin, however, makes bruising, swelling, bluish discoloration known as the Tyndall effect, and unevenness possible.
Problems may also appear later. An analysis of 52 delayed under-eye filler complications found swelling in 42.3% and lumps in 25.0%, with an average onset of 16.8 months. This is why we use small, evenly distributed amounts rather than trying to fill the entire hollow at once. When patients ask whether filler can solve everything, these limitations inform our conservative approach.
What role do skin boosters play?
When thin skin contributes to darkness, improving skin thickness and firmness may matter more than adding volume. HILO WAVE places a high-/low-molecular-weight HA complex just beneath the skin to replenish hydration and encourage collagen. As an HA-based product, it can be dissolved with an enzyme if nodules form. It may suit people concerned about nodules, a foreign-body sensation, or recovery time. For pain-sensitive patients or those with an event coming up soon, we select a cannula approach with minimal downtime. The manufacturer advises against use around the eyes, including the glabella, because intravascular injection can cause serious harm such as blindness. Your doctor therefore assesses thickness and vessel position, selects appropriate areas and amounts, and avoids areas close to the eyes.
Thin, lined under-eye skin: how does Re2O support skin structure?
We consider Re2O when under-eye skin is thin and lined. It introduces purified human-derived extracellular matrix into the dermis to reinforce the structure supporting collagen and elastin. It can suit people with many fine lines, rapid loss of firmness, or reluctance to repeat filler. Changes become clearer at 2–4 weeks; the usual starting course is three sessions 4 weeks apart. Thin areas such as the under-eyes require reduced depth and volume.
How does Dong-An Joongsim Clinic treat under-eye hollows?
At Dong-An Joongsim Clinic, your doctor personally handles your consultation and treatment. They examine the area and identify whether hollowing, pigment, vessels, or protruding fat is the main concern.
Dr. Chang-Hwan Cho was recognized as a HILO WAVE Top Ranker for high treatment volume in the shortest period, and the clinic received a 2026 HILO WAVE USER TOP5 AWARD. To reduce nodules caused by product accumulation, we distribute small amounts evenly across multiple points from the outset. Re2O can be uncomfortable when delivered by needle, so we may split the plan with HILO WAVE to make treatment easier to tolerate. One patient who received both said they were pleased to look naturally younger overall. Dr. Chang-Hwan Cho has lectured at the Korean Aesthetic Surgery and Laser Society on choosing collagen stimulators by area, including the under-eyes. He explained aging of the under-eyes and midface to physicians in his D&PS column, “Aging of the Midface”.
What should you know beforehand?
We do not recommend injections first for markedly protruding fat or substantial excess skin; surgery may be more appropriate. Nor do we recommend filling pigmentary dark circles, because volume will not lighten pigment. Skin boosters improve gradually over several sessions and results vary. Mild redness or swelling may last 1–3 days.
Under-eye hollows: common questions
What should I check when choosing an under-eye clinic in Apgujeong, Gangnam, Seoul?
Look for a doctor who personally examines the area and explains the type of dark circles. At Dong-An Joongsim Clinic, your doctor consults and treats you directly. The clinic received a HILO WAVE USER TOP5 AWARD.
How many skin-booster sessions are needed?
Re2O usually starts with three sessions 4 weeks apart. HILO WAVE is commonly repeated at around 3 months, with the course adjusted to skin condition.
Can filler and skin boosters be planned together?
Yes. Allow at least 1 month between filler and HILO WAVE in the same area.
Will I have bruising or swelling?
The area has many vessels, so both are possible but usually settle within days. Avoid rubbing the area and using saunas for about a week.
What determines the cost?
Cost depends on the product, amount, session count, and whether other areas are included. Your doctor explains the cost after assessment.
References
- Woodward J et al., “Infraorbital Hollow Rejuvenation: Considerations, Complications, and the Contributions of Midface Volumization”, Aesthetic Surgery Journal Open Forum, 2023. https://doi.org/10.1093/asjof/ojad016
- Michelle L et al., “Treatments of Periorbital Hyperpigmentation: A Systematic Review”, Dermatologic Surgery, 2021. https://doi.org/10.1097/DSS.0000000000002484
- Trinh LN et al., “Dermal Fillers for Tear Trough Rejuvenation: A Systematic Review”, Facial Plastic Surgery, 2022. https://doi.org/10.1055/s-0041-1731348
- Trinh LN et al., “Delayed Complications following Dermal Filler for Tear Trough Augmentation: A Systematic Review”, Facial Plastic Surgery, 2022. https://doi.org/10.1055/s-0041-1736390