How to get rid of dark circles — and what skincare can actually do.

Dark circles are one of the most common skincare concerns — and one of the most misunderstood. The reason most treatments underdeliver is that people apply products targeting the wrong cause. Dark circles are not a single condition. They are a category of appearance changes under the eye, each with a different origin and a different response to treatment.

The four types

Vascular. The skin under the eye is among the thinnest on the face — sometimes as little as 0.5mm. Capillaries sit close to the surface, and blood pooling or slow microcirculation creates a blue, purple, or pink cast. Rubbing the eyes, fatigue, allergies, and alcohol all dilate the capillaries. This is the type most people are describing when they say dark circles get worse after a bad night's sleep.

Pigmented. Excess melanin deposits in the under-eye area create brown or greyish discolouration. This type is more common in people with medium to deeper skin tones, people with chronic sun exposure to the delicate under-eye skin, and people with post-inflammatory hyperpigmentation from eczema or contact dermatitis. It is also associated with certain ethnicities where melanin distribution extends naturally into the periorbital area.

Structural. The tear trough — the groove between the lower eyelid and the cheek — can appear darker not because of pigment or blood, but because of shadow. As facial volume is lost with age, or in people with deeper tear trough anatomy, the hollow creates a shadow that reads as darkness. This type does not respond to skincare at all.

Mixed. Most people have a combination: some vascular component, some pigmentation, and some structural change. The mix determines what works and what does not.

What skincare can address

Vascular type: Caffeine constricts blood vessels and reduces the appearance of vascular dark circles temporarily. It is the most commonly used under-eye ingredient with plausible mechanism, though its effects are modest and short-lived — it does not address the underlying circulatory pattern. Vitamin K has been studied for its potential to improve vascular pooling with limited but positive evidence. Retinoids support collagen synthesis and thicken the skin over time, making the underlying vessels less visible — this is a long-term approach (three to six months minimum) and requires careful introduction given the sensitivity of the under-eye area.

Pigmented type: This responds best to targeted depigmentation ingredients. Vitamin C (L-ascorbic acid or stabilised derivatives) inhibits tyrosinase and brightens existing pigmentation. Niacinamide at 5% reduces melanin transfer and is well tolerated on delicate periorbital skin. Azelaic acid is another mild option with melanin-suppressing activity. All of these work on a timeline of months, not days, and require consistent sun protection — UV exposure directly worsens pigmented dark circles.

Structural type: Skincare cannot create volume or alter bone structure. This type responds to hyaluronic acid filler placed in the tear trough by a qualified aesthetic practitioner, or to specific cosmetic techniques that create optical lift. A thorough eye cream does not substitute for this.

Ingredients worth using

Caffeine (0.5–3%): vasoconstriction, reduces puffiness and the temporary appearance of vascular circles. Morning application most useful.

Vitamin C (5–15% or stabilised derivative): tyrosinase inhibition, collagen support, brightening for pigmented type. pH and formulation stability matter — L-ascorbic acid is effective but requires pH below 3.5 and opaque packaging.

Retinol or retinoids (low concentration, 0.025–0.05%): skin thickening over time for vascular type, cell turnover for pigmented type. The under-eye area is more sensitive than the rest of the face — use lower concentrations and introduce gradually.

Niacinamide (4–5%): anti-inflammatory, melanin transfer inhibition. Useful for pigmented type and generally well-tolerated.

Peptides — palmitoyl pentapeptide (Matrixyl) and GHK-Cu have supporting evidence for periorbital use; mechanisms include collagen stimulation and skin thickening.

Hyaluronic acid: does not treat dark circles directly, but well-hydrated, plumped skin reflects light more evenly and reduces the appearance of under-eye hollowing. Short-term benefit; not a substitute for structural correction.

What skincare cannot do

Skincare does not address structural dark circles. It cannot create volume, lift a tear trough, or restructure the orbital anatomy. Creams marketed as "lifting" or "filling" have no mechanism that achieves this.

Skincare also has limited effect on deeply embedded genetic pigmentation. In skin where the under-eye pigmentation is constitutional — part of the baseline melanin distribution for that person's skin type — topical treatment will produce marginal improvement at best.

Sun protection is the single most effective preventive measure. UV exposure drives and worsens all three addressable types: it stimulates melanogenesis (pigmented), degrades collagen making vessels more visible (vascular), and accelerates the volume loss that creates structural shadows. A broad-spectrum mineral SPF worn every morning around and under the eye is the non-negotiable baseline.

Lifestyle factors that matter

Sleep deprivation increases fluid retention and dilates blood vessels — both of which worsen vascular dark circles. This effect is genuine and not a myth. High dietary sodium increases periorbital oedema and the appearance of puffiness and shadowing. Allergies (hayfever, contact dermatitis) cause chronic rubbing and histamine-mediated capillary dilation — addressing the allergy often produces more improvement than any eye cream.

Realistic expectations

Under-eye skincare works. But the expectation needs to match the cause. A good vitamin C serum used consistently for three months may significantly reduce pigmented dark circles in someone with moderate sun-induced pigmentation. The same serum applied to structural tear trough shadowing will accomplish very little.

The most useful first step is identifying which type you have. Gently press the under-eye skin and pull it taut — if the darkness reduces, it is likely vascular or structural; if it persists under tension, it is more likely pigmented. The answer to that question determines what is worth trying.