TL;DR
Dark under-eye circles and hollowing are among the most common aesthetic concerns, affecting patients across all ages and skin types. Tear trough filler has emerged as one of the most...
Dark under-eye circles and hollowing are among the most common aesthetic concerns, affecting patients across all ages and skin types. Tear trough filler has emerged as one of the most popular — and potentially most risky — non-surgical treatments for this area. This comprehensive guide explores the anatomy, technique, product selection, risks, and alternatives that every patient should understand before considering this treatment.
Understanding Tear Trough Anatomy
The tear trough (nasojugal groove) is the depression that runs from the inner corner of the eye diagonally downward and outward along the junction between the lower eyelid and the cheek. This groove deepens with age due to a combination of factors: loss of fat volume in the suborbicularis oculi fat (SOOF) pad, thinning of the overlying skin (which is already the thinnest skin on the body at approximately 0.5mm), descent of the midface fat pads, and bone resorption in the maxilla (upper jaw).
The resulting hollow creates a shadow that appears as a dark circle, even in patients with no pigmentation issue. The darkness is largely an optical illusion — the concavity creates shadow, and the thin skin allows underlying blood vessels and the dark orbicularis oculi muscle to show through.
Who Is a Good Candidate for Tear Trough Filler?
Careful patient selection is arguably the most important factor in achieving good tear trough filler outcomes. The ideal candidate has genuine volume loss or hollowing in the tear trough area (as opposed to pigmentation-only dark circles), reasonable skin thickness (very thin skin increases the risk of visible filler, Tyndall effect, and lumpiness), no significant lower eyelid laxity or excess skin (these patients may need surgical blepharoplasty instead), realistic expectations about what filler can achieve, and no history of significant lower eyelid oedema (chronic puffiness).
Patients who are poor candidates include those with significant under-eye bags (festoons or malar oedema), which can worsen with filler. Those with very thin, translucent skin where filler will be visible are also less suitable. Patients with primarily pigmentation-based dark circles may not see much improvement, and those with significant lower eyelid laxity requiring surgical intervention should explore other options.
Treatment Options Compared
| Treatment | Mechanism | Duration | UK Cost | Risk Level |
|---|---|---|---|---|
| HA Filler (tear trough) | Volume replacement | 9-18 months | £300-£600 | Moderate-high |
| Polynucleotides | Skin quality improvement | 6-12 months | £250-£400 | Low |
| PRP/PRF | Growth factor stimulation | 6-12 months | £300-£500 | Low |
| Midface filler | Indirect lift and support | 12-18 months | £350-£600 | Low-moderate |
| Lower blepharoplasty | Surgical fat repositioning | Permanent | £3,000-£6,000 | Surgical risks |
| Topical treatments | Pigment/texture improvement | Ongoing use | £30-£100/month | Very low |
The Tear Trough Filler Procedure: What to Expect
A tear trough filler treatment at a reputable clinic follows a meticulous protocol. The consultation involves detailed assessment of the tear trough, midface, and overall facial proportions. Photographs are taken, and the practitioner will evaluate skin quality, laxity, and the nature of the dark circles (shadow vs pigmentation vs vascular). The practitioner will also perform a “snap test” to assess lower eyelid laxity.
The procedure itself typically takes 20-30 minutes. Most practitioners use a cannula technique (a blunt-tipped instrument inserted through a single entry point) rather than needle in this area, as the cannula significantly reduces the risk of bruising and vascular injury. Only very small volumes of filler are required — typically 0.3-0.5ml per side, far less than is used in other facial areas.
The product is placed deep, on or just above the periosteum (bone surface), to minimise visibility and reduce the risk of Tyndall effect. Placement must be precise and conservative — over-filling this area is one of the most common complications and can create a puffy, “pillow face” appearance that is very difficult to correct. Visit our treatments page for information about our under-eye rejuvenation options.
Expert Insight
“The tear trough is the area where I see the most complications from inexperienced injectors. The anatomy is unforgiving — there is virtually no margin for error in terms of product placement, volume, and product choice. I always advise patients to seek out the most experienced practitioner they can find for this area, even if it means travelling or paying more. This is emphatically not the treatment to choose based on a discount or convenience. A poorly done tear trough treatment can leave you looking worse for months.”
Risks and Complications
Tear trough filler carries a higher complication rate than many other filler areas due to the thin skin, proximity to the eye, and complex vascular anatomy. Potential complications include the Tyndall effect (a bluish discolouration visible through thin skin, caused by light reflecting off superficially placed filler), malar oedema (persistent swelling of the cheek area, which can be very difficult to resolve), lumpiness or irregularity, bruising and swelling, vascular occlusion (extremely rare but potentially serious — blockage of blood vessels that can theoretically affect vision), and migration of filler to adjacent areas.
The risk of complications is significantly reduced by choosing an experienced practitioner with specific tear trough expertise, by using appropriate products (low G-prime, cohesive HA fillers designed for this area), by conservative volume (the “less is more” principle is paramount here), and by cannula technique where appropriate.
Product Selection: Why It Matters
Not all dermal fillers are suitable for the tear trough. The ideal product for this area should have low G-prime (soft, pliable), be non-hygroscopic (does not attract excessive water, which would cause swelling), have good cohesivity (stays where placed), and be easily reversible with hyaluronidase.
Products frequently used for tear troughs in the UK include Teosyal Redensity 2 (specifically designed for the tear trough), Restylane Eyelight (formulated for the periorbital area), and Belotero Balance (low viscosity, integrates well in thin skin). Products designed for volume (Juvederm Voluma, Restylane Lyft) are generally too firm and hygroscopic for this area and carry a higher risk of visibility and oedema.
Alternatives to Filler: When Filler Is Not the Answer
Polynucleotides
For patients with skin quality issues rather than volume loss, polynucleotide therapy offers an excellent alternative. Products like Newest (specifically designed for the periorbital area) improve skin thickness, elasticity, and quality without adding volume. This makes them particularly suitable for patients with very thin skin who might have visible filler, or for those whose dark circles are primarily due to skin translucency rather than hollowing.
Midface Volume Restoration
In many cases, tear trough hollowing is actually a consequence of midface volume loss rather than a primary issue. Restoring volume to the cheeks and midface can indirectly improve the tear trough by providing support and reducing the depth of the groove — without the risks of injecting directly into the under-eye area. Our experienced practitioners can assess whether this approach might be more appropriate.
Topical Approaches
For patients with primarily pigmentation-based dark circles, topical treatments including vitamin C, niacinamide, retinol, and caffeine-containing eye creams can provide improvement. While results are modest compared to injectable treatments, the risk is minimal and the cost is lower.
Frequently Asked Questions
How long does tear trough filler last?
Tear trough filler typically lasts 9-18 months, though longevity varies significantly between individuals. The under-eye area is relatively static (minimal muscle movement), which tends to extend filler duration compared to more mobile areas. However, some patients find that filler persists much longer than expected in this area — sometimes years — which can be a consideration if you are unhappy with the result. Always start with a conservative amount; you can add more later if needed.
Is tear trough filler painful?
Most patients describe tear trough filler as mildly uncomfortable rather than painful. The area is typically numbed with topical anaesthetic cream applied 20-30 minutes before treatment. If a cannula technique is used, the single entry point is numbed with a small injection of local anaesthetic. The sensation is usually described as “pressure” rather than pain. The discomfort is brief and well-tolerated by the vast majority of patients.
Can tear trough filler be dissolved if I am unhappy?
Yes — hyaluronic acid filler can be dissolved with an enzyme called hyaluronidase. This is injected into the area and breaks down the filler, typically within 24-48 hours. This reversibility is one of the key advantages of HA fillers over other products. However, dissolution is not always straightforward in the tear trough — the enzyme can also affect the body’s own natural hyaluronic acid, temporarily worsening the hollow before it recovers. Contact our clinic for advice on correction procedures.
What is the Tyndall effect and how can it be avoided?
The Tyndall effect is a bluish discolouration that occurs when light passes through superficially placed, translucent hyaluronic acid filler. It is particularly common in the tear trough due to the extremely thin skin. It is avoided by deep placement (on the periosteum), using appropriate low-viscosity products, injecting conservative volumes, and choosing an experienced practitioner who understands the layered anatomy of this area. If Tyndall effect occurs, it can usually be resolved by dissolving the filler with hyaluronidase.
How much does tear trough filler cost in the UK?
Tear trough filler in the UK typically costs £300-£600 for both sides. The cost reflects the technical difficulty of the area and the specialised products required. Be cautious of significantly lower prices, which may indicate an inexperienced practitioner or inappropriate product choice. Given the complexity and risks of this area, this is a treatment where investing in expertise is particularly important. Book an assessment with our experienced team.
Medical Disclaimer: This article is provided for informational purposes only and does not constitute medical advice. Tear trough filler is an advanced aesthetic procedure with specific risks including Tyndall effect, malar oedema, and (rarely) vascular occlusion. It should only be performed by experienced, qualified practitioners with specific training in periorbital injection. Individual suitability varies and must be assessed in person.
This content is provided for informational purposes only and does not constitute medical advice. Individual results may vary. Always consult with a qualified medical professional before undergoing any treatment. All treatments carry potential risks and side effects which will be fully discussed during your consultation.
Medical Disclaimer: This content is provided for informational purposes only and does not constitute medical advice. Individual results may vary. Always consult with a qualified medical professional before undergoing any treatment. All treatments carry potential risks and side effects which will be fully discussed during your consultation.