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Section ConditionsDocument Under eyeRevision 2026.08Reviewed 2026-08-01
Condition protocol

Under the eye: what a routine can and cannot do

Dark circles, puffiness and hollowing under the eye: the four distinct causes, which respond to skincare and which do not.

Section Conditions Revision 2026.08Reviewed 2026-08-01 Published by Northbank Media
Short answer

Dark circles have four distinct causes and only two respond to topical products. Pigmentation responds slowly to sunscreen and to azelaic acid or a retinoid. Visible vessels through thin skin respond poorly to anything topical. Hollowing is structural and responds to nothing you can apply. Puffiness is fluid and responds to sleep position, salt and alcohol rather than to eye cream. Identify which you have before buying anything.

The area under the eye generates more product spending per square centimetre than anywhere else on the body and delivers the least. That is not because the products are all bad. It is because four different problems present as a dark ring and only two of them are the kind of problem a cream can address.

Identifying which you have takes about a minute in front of a mirror and saves a great deal of money.

Section 01The four causes

CauseHow to identify itResponds to topicalWhat actually helps
PigmentationBrown tone, unchanged when you stretch the skinSlowly, partiallySunscreen, azelaic acid, retinoid, time
VascularBlue or purple tone, more visible when tiredPoorlySleep, and procedural options if it matters
HollowingA shadow that changes with the angle of lightNoStructural, nothing topical addresses it
PuffinessSwelling worse on waking, improves through the dayNoSleep position, salt, alcohol, allergy control
Protocol

The one minute self assessment

Total 00:30
  1. 01

    Look in a mirror in even, front on light00:10

    Not overhead. Overhead lighting produces a shadow under the orbital rim in almost everyone and is why bathroom mirrors are so unflattering.

  2. 02

    Gently stretch the skin sideways00:10

    If the darkness stays, it is pigment in the skin. If it lightens, it is vascular or shadow.

  3. 03

    Tilt your head under a light source00:10

    If the darkness moves or changes with the angle, it is a shadow cast by hollowing rather than a colour in the skin.

  4. 04

    Compare morning to eveningTwo days

    Swelling that is worst on waking and better by midday is fluid. Darkness that is constant is not.

Section 02Pigmentation, the one that responds

Periorbital pigmentation is common, has a strong hereditary component, is more prominent in some skin tones, and is worsened by sun exposure and by rubbing. It is the only one of the four that responds meaningfully to a topical routine, and it responds slowly.

Protocol

Pigmentation protocol

Total 32 weeks
  1. 01

    Sunscreen on the area dailyDaily

    The most effective intervention available and the one people skip because sunscreen near the eye can sting. A mineral formulation or a dedicated stick applied on the orbital bone is the practical answer.

  2. 02

    Stop rubbing your eyesBehavioural

    Chronic rubbing, often from untreated hay fever or dry eye, causes pigmentation directly. If you rub your eyes daily, treating the reason is worth more than any product.

  3. 03

    Add azelaic acid or a low strength retinoid, carefully01 night/week

    On the orbital bone, not the eyelid. Start at one night a week and expect to stay there. Irritation in this area produces its own pigmentation, which is a real and counterproductive risk.

  4. 04

    Assess at week thirty twoWeek 32

    Pigmentation is the slowest thing in this publication to respond. Anything judged before six months has been judged too early.

Stop

Do not apply exfoliating acids, high strength retinoids or benzoyl peroxide close to the eye. The skin there is thin, the product migrates during the night, and irritation of the eyelid is genuinely unpleasant and can itself produce lasting pigmentation.

Section 03Vascular and hollowing, the two that do not

Blue or purple discolouration is blood in the vessels of the deeper tissue showing through thin overlying skin. Nothing you apply topically will make skin thicker to a degree that hides it. Caffeine containing eye products produce a brief vasoconstriction that some people notice and which lasts a short time. That is a cosmetic effect rather than a treatment.

Hollowing is a structural change: loss of volume in the tear trough with age, or an inherited anatomy. It produces a shadow, and shadows do not respond to creams. This is the point at which the discussion becomes a procedural one, and the questions to ask before pursuing that are in what to ask before any cosmetic procedure.

If

The darkness lightens when you stretch the skin and is blue or purple

Then

Vascular. Sleep, hydration and reduced alcohol help marginally. Topical products do very little. Accept it, or investigate procedural options with a properly qualified clinician.

If

The darkness moves with the light angle

Then

Shadow from hollowing. Structural. No topical addresses it and buying one is spending on the wrong problem.

If

Swelling on waking that resolves by midday

Then

Fluid. Sleep with your head slightly elevated, reduce salt and alcohol in the evening, and consider whether untreated allergy is contributing.

If

Sudden onset swelling of one eye, or with pain or visual change

Then

Not a cosmetic issue. Seek medical assessment.

If

Brown discolouration that does not change with stretching or light

Then

Pigmentation. The protocol above applies and it takes six months.

Section 04Does eye cream do anything

An eye cream is a moisturiser formulated for a thinner, more reactive area, usually with fewer active ingredients and a lower fragrance load. That is a legitimate product category. What it is not is a treatment for any of the four causes above, except insofar as any moisturiser temporarily improves the appearance of fine lines by hydrating the surface.

Assessment criteria eye products
  1. Fragrance freeThe area is thin, permeable and next to the eye. Fragrance here is a poor trade in every case.
  2. A texture that will not migrateLight products migrate into the eye overnight. A slightly heavier texture applied to the orbital bone stays where it is put.
  3. No claim to remove dark circlesNo topical does this for vascular or structural causes. A product making the claim without qualifying it is telling you something about the seller.
  4. Not a duplicate of your face moisturiser at four times the priceCompare the ingredient lists. If they are close, use the face moisturiser and spend the difference on sunscreen.
  5. Suitable for use under sunscreenBecause sunscreen in this area is the intervention with the most evidence behind it.

Section 05The unglamorous variables

  1. Sleep. Both the duration and, for puffiness, the position. Sleeping flat encourages overnight fluid accumulation; a slightly elevated head reduces it.
  2. Alcohol. Produces both fluid retention and vasodilation, which is why the morning after looks the way it does.
  3. Salt in the evening. Contributes to overnight fluid retention in some people.
  4. Allergy. Untreated hay fever or perennial rhinitis produces both congestion related discolouration and chronic rubbing. Treating it addresses a cause rather than a symptom.
  5. Sun exposure. The area is often missed entirely by sunscreen application, and UV drives pigmentation.

None of those are products, which is why they are rarely discussed alongside eye creams. They are also, between them, more effective than anything in the category. Related reading: the sunscreen protocol, azelaic acid, and the plateau decision tree.

No commercial links on this page

This article contains no affiliate links, no sponsored placement and no link to any commercial product, brand, retailer or clinic. Nobody paid for it, nobody previewed it and nobody can have a protocol changed. Our editorial standards set out the two disclosed archive exceptions, neither of which is this page.

Nothing here is medical advice. Speak to a pharmacist, a GP or a dermatologist about your own circumstances.

Sources

Institution level references. We link to bodies that publish their methods and their guidance, never to retailers.

  1. NHS: sunscreen and sun safetyUV protection, which is the main modifiable factor in periorbital pigmentation.https://www.nhs.uk/conditions/sunscreen-and-sun-safety/
  2. NHS: hay feverAllergy management, which addresses eye rubbing as a cause of pigmentation.https://www.nhs.uk/conditions/hay-fever/
  3. British Association of Dermatologists patient information leafletsPigmentation disorders and facial skin care.https://www.bad.org.uk/patient-information-leaflets/
  4. PubMedThe indexed literature on periorbital hyperpigmentation and its causes.https://pubmed.ncbi.nlm.nih.gov/

Frequently asked questions

Do eye creams work?

As moisturisers for a thin, reactive area, yes. As treatments for dark circles, mostly no, because two of the four common causes do not respond to anything topical.

Does caffeine in an eye product help?

It produces a brief vasoconstriction that some people notice for a few hours. It is a temporary cosmetic effect rather than a treatment for the underlying cause.

Can I use my retinoid under my eyes?

On the orbital bone, at low frequency, if you tolerate it. Not on the eyelid. Irritation in this area can itself cause pigmentation, which defeats the purpose.

Why do my dark circles get worse when I am tired?

Vascular discolouration becomes more apparent with poor sleep, dehydration and alcohol. If your circles fluctuate with sleep, that tells you the cause is vascular rather than pigmentary.

Is there anything that fixes hollowing?

Not topically. It is a structural loss of volume. Procedural options exist and should be discussed with a properly qualified clinician, with the questions from the escalation section asked first.

Should I use sunscreen under my eyes?

Yes, on the orbital bone. It is the single most effective intervention for the pigmentary component. Use a mineral formulation or a stick if standard sunscreen stings.

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