Dark circles under your eyes usually come down to one of three things: visible blood vessels showing through thin skin, excess pigment in the skin itself, or shadows cast by lost volume beneath the eye. Most people have some combination of all three, and the balance shifts as you age. Understanding which type you’re dealing with is the first step toward actually improving them.
The Three Types of Dark Circles
Not all dark circles have the same cause, and the color is your biggest clue.
- Vascular (blue, purple, or pink): These result from blood vessels becoming visible through the skin beneath your eyes. The skin in this area is among the thinnest on your body, and in people with fair or thin skin, the blood pooling underneath shows through easily. Poor circulation around the eye area makes this worse.
- Pigmented (brown or black): These come from your skin producing excess melanin around the eyes. This can be genetic, especially common in deeper skin tones, or triggered by sun exposure and chronic rubbing or irritation. Dermatologists call this idiopathic hyperchromia of the orbital ring.
- Structural or shadow-based: These appear when volume loss beneath the eye creates a groove running from the inner corner of your eye toward your cheek. As fat pads in the upper cheek descend with gravity and the tissue holding orbital fat weakens, a depression forms that casts a shadow. This shadow looks like a dark circle regardless of your skin color or vascularity.
A Simple Test to Find Your Type
You can get a rough idea at home. Gently pinch and lift the skin just below your lower lash line. If the dark color lifts with the skin, pigmentation is the likely culprit. If the color disappears when you pull the skin away from the underlying tissue, you’re probably seeing blood vessels, thinned skin, or shadows from the bone structure underneath. This isn’t a perfect diagnostic tool, but it helps you understand what you’re working with before spending money on products that target the wrong problem.
Why They Get Worse With Age
The under-eye area changes more dramatically with age than most parts of your face. Research on facial skin thickness shows that while skin on the forehead, cheeks, and chin tends to get thicker in older adults, the skin beneath the eyes actually thins. That means blood vessels become progressively more visible over time, even if you never had noticeable dark circles in your twenties.
Simultaneously, the fat pads that sit beneath the eye and along the upper cheek lose volume and shift downward. This creates or deepens the tear trough, that curved depression running from your inner eye toward your cheekbone. The resulting shadow effect can make even well-rested people look exhausted. In some cases, the weakened tissue that holds orbital fat in place allows it to bulge forward, creating puffiness directly above the hollow. The contrast between a puffy bag and a sunken trough makes both look worse.
Lifestyle Factors That Make Them Worse
Sleep deprivation is the classic trigger, and it’s real. When you’re tired, blood vessels dilate, and the increased blood flow beneath that ultra-thin skin becomes more visible. Fluid also redistributes when you lie flat for hours, pooling around the eyes and adding puffiness that accentuates shadows.
High sodium intake plays a direct role in morning puffiness. Sodium regulates the movement of water in and out of your cells. When you eat too much salt, water accumulates in your tissues, and the loose, thin skin around the eyes swells more noticeably than anywhere else on your face. Cutting back on salty foods, particularly in the evening, can visibly reduce morning puffiness within days.
Allergies are another common driver. Seasonal or environmental allergies cause itching, rubbing, and inflammation around the eyes. The rubbing itself stimulates melanin production over time, while the allergic inflammation increases blood flow to the area. If your dark circles are worse during allergy season, that connection is worth addressing directly.
What Actually Works for Treatment
Effective treatment depends entirely on which type of dark circle you have. There’s no single product that fixes all three.
For vascular dark circles (the blue or purple kind), topical products containing caffeine or vitamin C offer modest improvement. Caffeine constricts blood vessels and reduces fluid buildup. Eye creams typically use concentrations around 3%, and caffeine reaches peak absorption in the skin about 100 minutes after application. The effect is temporary, so daily use is necessary. Vitamin C also helps by strengthening the tiny blood vessels beneath the skin.
For pigmented dark circles, ingredients that reduce melanin production are the primary approach. Current dermatological guidelines recommend azelaic acid, vitamin C, and compounds like arbutin or thiamidol for pigment-related darkness. Consistent sunscreen use around the eyes is equally important, since UV exposure drives melanin production in the area. Chemical peels performed by a dermatologist can also help by removing the outer layers of pigmented skin over multiple sessions.
For structural dark circles caused by volume loss, topical products have almost no effect. The shadow is a physical contour issue, not a skin issue. Dermal fillers injected into the tear trough can restore lost volume and reduce the shadowed appearance. In retrospective studies, about 82% of patients who received hyaluronic acid filler in the tear trough saw measurable improvement in the depth of their hollowing. However, fillers in this area carry specific risks. The most common complication is a blue-gray discoloration called the Tyndall effect, where the filler material becomes visible through the thin skin. Light-skinned patients with thin skin are most susceptible, and this discoloration can worsen over time as the filler shifts position. Choosing an experienced injector who places the filler deep, beneath the muscle and close to the bone, with conservative volumes significantly reduces these risks.
Why Concealer Works Better Than You Think
Cosmetic camouflage is listed as a recommended approach across every type of dark circle in current clinical guidelines, and for good reason. Color-correcting concealers (peach or orange tones for deeper skin, pink or salmon for lighter skin) neutralize the discoloration before you apply foundation. For many people, this delivers a more immediate and reliable improvement than any topical treatment or procedure. It’s not a fix for the underlying cause, but if your goal is simply looking less tired today, it’s the most effective option available.
Genetics Often Set the Baseline
If your parents have prominent dark circles, you likely will too. Genetic factors determine your baseline skin thickness, how much melanin your body deposits around the eyes, your bone structure and orbital depth, and how your fat pads are distributed. Some people are simply predisposed to more visible vascularity or deeper tear troughs. This doesn’t mean improvement is impossible, but it sets realistic expectations. You can address the factors that make dark circles worse (sleep, sodium, sun exposure, allergies) without expecting to eliminate something that’s fundamentally structural or inherited.