Why I Don't Offer Tear Trough Filler: The Four Causes of Under-Eye Shadows

She sits down, tilts her chin up towards the window, and points at the area under her eyes.

"I look exhausted all the time. People keep asking if I'm alright. I've read about tear trough filler and I think that's what I need."

I have this conversation most weeks, and I nearly always end it by saying no.

I do not offer tear trough filler at the clinic. That is a deliberate decision rather than a gap in what I can do, and I want to be careful about how I explain it, because the internet is full of people being absolutist about this in both directions.

Tear trough filler is not a bad treatment. In the right patient, injected by the right hands, it produces genuinely good results. My position is narrower and more honest than that: the satisfaction rate does not justify it in my hands and in my patient group.

To explain why, I have to start somewhere else entirely. Because the real problem with under-eye shadows is not which treatment you choose. It is that almost everybody is treating four completely different problems as though they were one.

In this article

• Under-eye shadows are four different problems
• The mirror test that tells you which one you have
• What tear trough filler actually treats
• Why I do not offer it
• In fairness to filler: what the evidence says for it
• What I do instead, by type
• The evidence for polynucleotides under the eyes
• What no treatment will fix
• If you already have filler you are unhappy with
• Frequently asked questions
• References

Under-Eye Shadows Are Four Different Problems

In the dermatology literature this is called periorbital hyperpigmentation, and it has a well-established classification with four categories. They look superficially similar in the mirror and they are caused by entirely different things.

Type	What you see	What is actually happening
Pigmented	A genuine brown hue under the eye	Excess melanin in the skin itself. Often genetic or familial, sometimes left behind by eczema, allergic rubbing or sun exposure
Vascular	A blue, purple or pink tone, sometimes with puffiness	Skin thin enough that the blood vessels and muscle underneath show through. Worse in the morning, after salt, and around your period
Structural	A shadow rather than a colour, changing with the light	Anatomy. A hollow at the tear trough, fat pads pushing forward, cheek descent, or simply the shape of the bone underneath
Mixed	Some combination of the above	Two or three mechanisms at once, in varying proportions. This is the most common presentation of the four

Hold onto that last row, because it is the reason so much under-eye treatment disappoints. The majority of people are mixed type. Any treatment that addresses one mechanism will, at best, partly improve a face that has two or three things going on.

The Mirror Test That Tells You Which One You Have

You can do a version of this yourself, right now, and it is the single most useful thing in this article.

Stand in front of a mirror in decent, even light. Place a fingertip just below the shadow, on the upper cheek, and gently stretch the skin downwards and outwards. Do not pull hard. Watch what happens to the darkness.

When you stretch the skin	Most likely type
The shadow largely disappears	Structural. You are looking at a shadow cast by contour, not a colour in the skin
The brown colour stays exactly as it was	Pigmented. The colour is in the skin, so moving the skin moves the colour with it
It deepens or turns more violet	Vascular. Stretching thin skin over vessels tends to make them more visible, not less

If you are not sure which of the three happened, that is not a failure of the test. It is very probably your answer, and the answer is mixed.

In clinic I add to this. Light from different angles separates shadow from pigment quickly, because a shadow moves when the light moves and a pigment does not. Looking at the area with the head tilted back changes a structural hollow and leaves a pigmented patch alone. And a history matters enormously: shadows you have had since you were nine are a different problem from shadows that arrived at forty-six.

This is the part I would most like people to take away. Before you spend anything at all, know which of the four you are dealing with, because the four have almost nothing in common except where they sit on your face.

What Tear Trough Filler Actually Treats

Hyaluronic acid filler placed in the tear trough does one thing well. It fills a hollow. That makes it a treatment for the structural type, and within the structural type, for the specific subset whose problem is a genuine volume deficit rather than fat pads pushing forward or skin that has simply become lax.

It does not lighten pigment. It does not thicken thin skin. It cannot reduce a fat pad, and placing filler beneath a bulge tends to make the whole area look heavier rather than smoother.

So of the four types above, filler is the right answer for part of one of them.

Why I Do Not Offer It

Four reasons, in the order they matter to me.

1. Most people asking for it do not have the problem it treats

Mixed type is the most common presentation. When I examine someone who has come in asking for tear trough filler, more often than not there is pigment, or thin vascular skin, or early fat pad prominence in the picture as well as a hollow. Filling the hollow addresses one component and leaves the rest, which is precisely how you end up with a patient who is technically improved and subjectively unimpressed.

2. Even the literature in favour of it describes a narrow ideal candidate

This is the argument that persuaded me, and it comes from a 2025 paper written in defence of tear trough fillers rather than against them. Its authors set out who the good candidate is: minimal to moderate volume loss, good skin elasticity, and no history of malar oedema or festoons. Poor candidates include those with significant orbicularis muscle hypertrophy, hyperpigmented skin, oedema, festoons or skin laxity.

Read that list of exclusions against the average forty-eight-year-old woman who books a consultation about her under eyes, and the ideal candidate turns out to be a genuinely small proportion of the people who want the treatment.

3. The complication profile in this specific area is not trivial

A 2026 review comparing hyaluronic acid fillers and polynucleotides for the under-eye area collected the reported rates. They are worth seeing written down.

Reported in under-eye HA filler	Rate	What it means
Tyndall effect	31.3%	A bluish-grey cast where product sits too superficially. Ironically, a treatment for shadows creating a new discolouration
Contour irregularities	30.5%	Lumps, ridges and unevenness in an area where the skin is too thin to conceal them
Malar oedema	11%	Persistent puffiness over the cheekbone, which can be stubborn and long-lasting
Vascular occlusion	Rare	Blockage of a blood vessel, which around the eye carries a risk of visual loss. Uncommon, and serious enough that it belongs on any honest list

Roughly one in three for the first two. These are not catastrophes and most are correctable, but they are common enough that they are an expected part of offering the treatment rather than bad luck. I am not comfortable with those numbers for an elective treatment of a cosmetic concern in an area this unforgiving.

4. It lasts far longer than patients are told, so mistakes are not temporary

This is the part almost nobody is told at consent, and it is the reason I feel strongly enough to write a post about it.

The standard reassurance is that filler lasts six to twelve months, so if you dislike it you can simply wait. In the under-eye area, that appears not to be true.

A 2025 retrospective study of 155 patients treated over sixteen years found meaningful results still present at eighteen months, with clinical persistence beyond twenty-four. The authors said explicitly that this challenges the commonly reported six to twelve month figure. In the same study, delayed complications, meaning swelling, lumps, discolouration and migration, appeared on average around sixteen to seventeen months after treatment.

Read those two findings together. The product is still there long after you were told it would be gone, and the problems tend to arrive at roughly the point you stopped expecting them.

Filler can of course be dissolved, and that is a genuine safety net. But "we can dissolve it" is a different conversation from "it will wear off by itself", and patients consenting to under-eye filler deserve the accurate version.

In Fairness to Filler: What the Evidence Says For It

I would be doing exactly what I criticise if I only presented one side, so here is the other.

The efficacy data for hyaluronic acid in the infraorbital area is genuinely strong. Reported responder rates on global aesthetic improvement scales run from 87% to 98% between three and twelve months, with tear trough trials specifically reporting around 86% to 90% at six months and high patient satisfaction. In real-world data, more than 70% of patients rated themselves improved or much improved at three months.

That same 2026 review concluded that hyaluronic acid remains superior for structural correction and for genuine tear trough deformity, and that polynucleotides should be seen as complementary rather than as a replacement.

I agree with that. Which is why my position is not that the treatment is bad.

It is that the ideal candidate is narrower than the marketing suggests, the complication rate in this particular area is higher than most people are told, the product persists longer than most people are told, and in my patient group the number who would genuinely do well from it is small enough that I would rather not offer it at all than offer it to the wrong person.

If you have been assessed by an experienced injector who has examined you properly, explained the complication rates honestly, and thinks you are a good candidate, that is a perfectly reasonable treatment to have. It just will not be with me, and I would rather tell you that plainly than take your deposit and hope.

What I Do Instead, By Type

This is where the four-way diagnosis earns its keep, because each type has a different answer and some of those answers are not treatments at all.

Type	What I would suggest	Realistic expectation
Pigmented	Prescription skincare, carefully chosen for this area, plus daily SPF and treating any underlying eczema or rubbing	Good, but slow. Months rather than weeks, and it needs maintaining
Vascular	Thicken and improve the skin itself with polynucleotides or skin boosters, plus managing the things that worsen it	Modest and genuine. You are making the window less transparent, not removing what is behind it
Structural, mild hollow	Skin quality work, and sometimes support restored higher in the midface rather than in the tear trough itself	Partial. I will tell you if I think the honest answer is filler with someone else
Structural, fat pads	An oculoplastic surgical opinion. Lower lid blepharoplasty is the treatment that addresses this	No injectable fixes this, and injecting around it usually makes it look worse
Mixed	Sequence rather than combine. Treat the dominant component first, reassess, then decide whether anything more is needed	Often better than expected, because most people have never treated the dominant component at all

You will notice that two rows send you somewhere other than my treatment room, and one of them sends you to a surgeon. That is not modesty. It is that the alternative is taking money for a treatment I know will not do what you want.

A note on lasers

The literature does describe laser treatments for both pigmented and vascular under-eye shadows. I do not offer lasers, so if a proper assessment suggests that is your best route, I will tell you and you should see someone who does. I would rather be the person who says that than the person who offers you the second-best thing I happen to own.

The Evidence for Polynucleotides Under the Eyes

Since polynucleotides are what I reach for most often here, they deserve their own honest appraisal rather than an assertion.

Polynucleotides are chains of DNA fragments, usually derived from salmon, which act on the skin as a regenerative signal rather than as a filler. They add no volume. What they appear to do is improve the quality, thickness and elasticity of the skin itself, which is exactly the right target for thin, crinkly, vascular under-eye skin.

The evidence, fairly stated:

What has been shown	The detail
Comparable to non-crosslinked HA in a split-face trial	A randomised double-blind study of 27 patients found similar improvement on visual and global aesthetic scores, with greater gains in measured elasticity, hydration and surface roughness
Moderate improvement across a larger pooled group	A systematic review of 219 treated patients found statistically significant but moderate improvements in wrinkles, texture and elasticity
A favourable safety profile	Mild, temporary injection site effects. No serious or delayed complications reported through six months of follow-up in the reviewed studies
The honest limitation	The word that recurs in the literature is moderate. This is skin quality improvement, not transformation, and it will not fill a genuine hollow

I would rather offer a moderate improvement with a mild side effect profile than a dramatic one with a one in three chance of a visible problem in an area where problems are very hard to hide.

That is a preference, not a fact, and a reasonable doctor could weigh it differently. It is simply how I weigh it.

What No Treatment Will Fix

Some under-eye shadows are not a medical problem and are not going anywhere, and knowing which is which will save you a great deal of money.

Deep-set eyes and prominent orbital bone. If the shadow is cast by the shape of your skull, no injectable changes your skull. Some people have looked slightly tired since childhood and always will.

Genetic pigmentation. Familial periorbital pigmentation, common in some ethnic groups, can be softened but rarely eliminated. Anyone promising otherwise is overselling.

Sleep, on its own. Poor sleep makes existing shadows more obvious, mostly through fluid and pallor. It is very rarely the cause. Women routinely blame themselves for something anatomical.

Anything, if the cause is thyroid, iron deficiency or allergy. Persistent puffiness, itching and rubbing all have medical causes worth excluding. As a GP I would rather check the boring explanations before anybody injects anything.

If You Already Have Filler You Are Unhappy With

This comes up often enough to need saying.

Under-eye filler you dislike can be dissolved with hyaluronidase, and knowing that is genuinely reassuring. Two practical points. First, given the persistence data above, waiting for it to disappear on its own may take considerably longer than you were led to expect. Second, dissolving the under-eye area well is a skilled job in its own right, so it is worth going to someone experienced in doing it rather than simply someone willing.

If you are not sure whether what is bothering you is filler, swelling or the original problem never having been addressed, that is a reasonable thing to come and have looked at.

Frequently Asked Questions

Do you offer tear trough filler?

No. It is a deliberate decision rather than a limitation. I think the ideal candidate is narrower than the marketing suggests, the complication rate in this area is higher than most patients are told, and the product persists longer than most patients are told. In my patient group, the proportion who would genuinely do well from it is small enough that I would rather not offer it than offer it to the wrong person.

Is tear trough filler dangerous?

Serious complications are rare but real, and around the eye they include vascular occlusion with a risk of visual loss. The more common issues are less dramatic and more likely: reported rates include Tyndall effect at around 31%, contour irregularities at around 30% and malar oedema at around 11%.

How long does under-eye filler actually last?

Longer than the six to twelve months usually quoted. A 2025 retrospective study of 155 patients found meaningful results at eighteen months and clinical persistence beyond twenty-four, and delayed complications appearing on average at around sixteen to seventeen months.

What is the Tyndall effect?

A bluish-grey discolouration that appears when filler sits too superficially and scatters light. It is a particular problem under the eyes because the skin there is the thinnest on the body, and it means a treatment intended to correct shadows can create a new discolouration of its own.

How do I know if my dark circles are pigment or shadow?

Gently stretch the skin below the shadow in good light. If the darkness largely disappears, it is likely structural shadow. If a brown colour stays exactly as it was, it is likely pigment. If it deepens or turns violet, it is likely vascular. If you cannot tell, you are probably mixed type, which is the most common of the four.

Will polynucleotides get rid of my dark circles?

They will not eliminate them. What they can do is improve the quality, thickness and elasticity of the skin, which helps most where thin skin is letting the vessels underneath show through. The literature describes the improvement as moderate, and so do I.

Can eye creams do anything at all?

For the pigmented type, prescription-strength topicals can genuinely help over months. For structural shadows, no cream changes anatomy. Most over-the-counter eye creams are hydrating the skin, which makes it look temporarily smoother and does nothing to the cause.

Does lack of sleep cause dark circles?

It makes existing shadows more visible through fluid retention and pallor, but it is rarely the underlying cause. If your shadows persist after a good week of sleep, sleep is not your problem.

What treats under-eye bags rather than shadows?

True bags caused by fat pads pushing forward are a surgical problem, usually addressed by lower lid blepharoplasty. No injectable treatment reduces a fat pad, and injecting filler beneath one tends to make the area look heavier.

Under-Eye Consultations in Hale, Altrincham and Cheshire

If your under eyes have bothered you for years and nothing you have bought has touched them, the most useful thing I can offer is not a treatment. It is a proper look at which of the four things is actually happening, and an honest answer about what will and will not change it.

Every consultation is carried out personally by me, Dr Caroline Warden, NHS GP and aesthetic doctor. Sometimes the outcome is a treatment plan. Sometimes it is a referral to a surgeon, a recommendation for something I do not offer, or a blood test. All three of those are better outcomes than the wrong injectable.

The clinic is in Hale Village, minutes from Altrincham, and we see patients from Bowdon, Hale Barns, Wilmslow, Knutsford, Sale, Timperley, Stockport, Didsbury, Manchester and across Cheshire.

You are welcome to book a consultation, or to look at the full range of treatments first.

References

1. Sarkar R, Ranjan R, Garg S, Garg VK, Sonthalia S, Bansal S. Periorbital Hyperpigmentation: A Comprehensive Review. Journal of Clinical and Aesthetic Dermatology. 2016;9(1):49 to 55.
2. Hafeez K, Khan RS. Hyaluronic Acid Fillers Versus Polynucleotides for Under-Eye Rejuvenation. Journal of Clinical Medicine. 2026;15(13):4971.
3. Puyana C, Montes JR. Long-Term Effects of Tear Trough Hyaluronic Acid Filler: A Retrospective Study. Journal of Clinical and Aesthetic Dermatology. 2025;18(11):44 to 47.
4. Torabi SJ, Massry G, Azizzadeh B. Are Tear Trough Fillers Really that Bad? Facial Plastic Surgery & Aesthetic Medicine. 2025;27(1):1 to 2.

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Written and medically reviewed by Dr Caroline Warden, MBChB, NHS GP and aesthetic doctor at Dr Caroline Warden Skin & Aesthetic Clinic, Hale, Altrincham. GMC number 6157708. Last reviewed: September 2026.

This article is general information and is not a substitute for individual assessment. Complication rates quoted are those reported in the published literature and vary between studies, practitioners and patients.