Sunken eyes result from volume loss beneath the skin around your eye sockets, and fixing them depends on what’s causing the hollowing. For some people, better hydration and sleep are enough. For others, topical products can thicken the skin and reduce shadows. And for pronounced hollowing, injectable fillers or surgical fat repositioning offer longer-lasting correction.
Why Eyes Look Sunken
The under-eye area has some of the thinnest skin on your body, stretched over a pocket of fat that cushions the eyeball inside the socket. When that fat shrinks, when the bone beneath it changes shape, or when the skin thins out, you get a hollow, shadowed look called a tear trough deformity.
Aging is the most common driver. Over time, the fat pads beneath your eyes atrophy, the muscles around them weaken, and the bones of the eye socket gradually remodel and expand. These changes are subtle year to year but cumulative. Genetics plays a large role in the timeline: some people develop noticeable hollowing in their 20s, while others don’t until their 50s.
Dehydration, sleep deprivation, and significant weight loss can also make eyes appear sunken, though these causes are usually temporary. Less commonly, sunken eyes result from a medical condition called enophthalmos, where the eyeball itself sits deeper in the socket due to a fracture, sinus disease, or other structural problem. If the hollowing is noticeably worse in one eye, or appeared suddenly after an injury, that’s worth a medical evaluation. A difference of more than 2mm between eyes is a clinical threshold for diagnosing enophthalmos.
Start With Hydration and Sleep
Before investing in products or procedures, rule out the simplest causes. Dehydration reduces fluid volume throughout the body, and it shows up early in the thin skin around your eyes. Drinking adequate water won’t reverse age-related fat loss, but if your hollowing looks worse on some days than others, fluctuating hydration is likely a factor. The same goes for sleep: chronic short sleep makes under-eye skin look thinner and more translucent, deepening shadows.
If your sunken eyes improve noticeably after a weekend of solid sleep and consistent water intake, lifestyle changes may be all you need. If they don’t budge, the cause is structural, and you’ll want to look at topical or procedural options.
Topical Products That Help
No cream will rebuild lost orbital fat, but several ingredients can measurably thicken the skin around your eyes, which reduces the shadowed, hollowed appearance. The key is consistency over weeks or months.
Retinol is the strongest evidence-backed option for building skin thickness. It stimulates collagen production and thickens the epidermis. Concentrations around 0.5 to 1% are effective for the under-eye area, though you’ll want to start lower and build up since this skin is sensitive. Prescription-strength retinoids work faster but cause more irritation.
Hyaluronic acid serums improve moisture retention and elasticity in the periorbital area. Newer nano-formulations (with very small molecule sizes) have shown statistically significant improvements in wrinkle depth and skin hydration. These won’t add volume underneath the skin, but plumper, better-hydrated skin looks less hollow.
Niacinamide strengthens the skin’s barrier by increasing both its lipid and protein layers, reducing water loss and making skin look less translucent. It pairs well with retinol and is gentle enough for daily use around the eyes.
Alpha hydroxy acids like glycolic acid can increase epidermal thickness by about 25% after six months of regular use, while also boosting collagen and elastin production. Use low concentrations around the eyes (5 to 10%) and avoid getting product in your eyes.
Growth factor serums have shown impressive results in clinical trials: one study found a 37% increase in collagen density and a 30% increase in skin thickness after just 60 days of twice-daily application. These products tend to be expensive, but the data is compelling for under-eye skin specifically.
Tear Trough Fillers
For moderate to significant hollowing, hyaluronic acid fillers injected into the tear trough are the most popular non-surgical fix. A provider injects a small amount of gel beneath the skin to replace lost volume, filling in the shadow and smoothing the transition between your lower lid and cheek. The procedure takes about 15 to 30 minutes.
Results last longer than most people expect. While the commonly cited range is 8 to 12 months, recent research using 3D imaging found measurable volume augmentation lasting an average of 14.4 months, with significant visible results persisting up to 18 months. Some patients see benefits beyond 24 months. Cost typically runs $600 to $1,500 per syringe, with most people needing one to two syringes for a total of $1,000 to $2,000.
Recovery is minimal. Most people return to normal activities the same day. Mild swelling, redness, or bruising usually resolves within a week.
Risks to Know About
The tear trough is one of the higher-risk areas for filler injection because of the large blood vessels running through it. Complications range from mild (bruising, slight unevenness) to serious. If filler is placed too superficially, it can create a bluish tint under the skin called the Tyndall effect, which is visible through the thin under-eye skin and can persist until the filler is dissolved.
The most severe risk is vascular occlusion, where filler blocks a blood vessel. Warning signs include sudden blanching or discoloration of the skin, hematoma formation, and intense pain. In rare cases, vascular occlusion can cause skin tissue death or vision loss. This is why choosing an experienced, well-trained injector matters more here than in almost any other area of the face. Ask about their specific experience with tear trough injections, not just fillers in general.
Surgical Options for Lasting Results
When fillers aren’t enough, or when you want a permanent solution, surgery can address sunken eyes by physically adding or redistributing fat around the eye socket.
Fat repositioning works well for people who have both under-eye bags and hollowing. Instead of removing the puffy fat pads that cause bags, a surgeon shifts them downward into the hollow tear trough, smoothing out the bulge and filling in the shadow in one step. The incision is typically made inside the lower eyelid, so there’s no external scar. Results are permanent: once the fat heals in its new position, it stays, though your face continues to age naturally over time. The best candidates have visible bags along with deep tear troughs and good skin elasticity.
Fat grafting is the better option for people with pure volume loss and no excess fat to redistribute. Fat is harvested from another part of your body (usually the abdomen, thighs, or flanks) through gentle liposuction, processed, and then injected into the hollows around the eyes. Because the grafted tissue is your own, it integrates naturally and lasts for years. Fat grafting also carries regenerative benefits: the stem cells and growth factors naturally present in fat tissue can improve skin texture and tone in the treated area over time. This approach is particularly useful for people who’ve had previous surgeries that removed too much under-eye fat.
Both procedures require more downtime than fillers, typically one to two weeks of noticeable swelling and bruising, and carry the standard risks of any surgery including infection and asymmetry. But for people tired of repeating filler treatments every year or two, the permanence is a significant advantage.
Choosing the Right Approach
Your best option depends on how severe the hollowing is and what’s causing it. Mild, variable hollowing that comes and goes responds well to hydration, sleep, and topical products that build skin thickness over time. Moderate hollowing with a visible shadow that bothers you daily is the sweet spot for tear trough fillers, which offer a dramatic improvement with minimal downtime and commitment. Deep, structural hollowing, especially when combined with bags or prior surgical overcorrection, is best addressed surgically for a result that doesn’t require ongoing maintenance.
Many people start with topical products and lifestyle changes, move to fillers when those aren’t enough, and eventually consider surgery if they want a permanent fix. There’s no single right answer, and the approaches aren’t mutually exclusive: even after fillers or surgery, retinol and hyaluronic acid serums continue to improve the quality of the overlying skin.