Medical disclaimer: This article is for informational purposes only, does not constitute medical advice, and has not been reviewed by a licensed medical professional. Results vary by individual. Always consult a qualified healthcare provider before making any healthcare decisions.
Quick answer: Tear trough filler fills the hollow under the eyes with hyaluronic acid, smoothing the shadowed groove between the lower lid and cheek. Results are visible immediately, settle over 1 to 2 weeks as swelling resolves, and typically last 9 to 18 months. A systematic review and meta-analysis covering 2,556 patients found a 91% satisfaction rate — one of the highest of any filler treatment.
What does tear trough filler before and after actually show? It shows the hollow groove running from the inner corner of the eye toward the cheek filled back in. Before treatment, that groove casts a shadow that reads as a dark circle no matter how much sleep or concealer you throw at it. After treatment, the transition from lower lid to cheek is continuous and smooth, and the shadow — along with the tired look it creates — disappears.
This guide draws on three peer-reviewed studies (a retrospective outcomes study, a systematic review and meta-analysis, and a prospective safety study), FDA guidance on dermal fillers, and 2026 US pricing data from aesthetic practices.
Why tear trough hollowing happens
The tear trough is a natural groove under the eye, and in youth the fat pads in the lower eyelid keep it shallow enough that skin runs smooth from lid to cheek. As those fat pads thin and drop with age, the groove deepens into a visible hollow — some people see it emerge as early as their 20s, purely from genetics rather than aging.
That hollow is what creates the shadow, not pigment. A sunken surface doesn't catch light the same way flat skin does, so the area reads dark even on a full night's sleep. This is the detail most patients miss: they treat it like a dark-circle problem when it's actually a volume problem, and no amount of eye cream fixes a shape.
That's also why concealer and sleep stop working here — they can't fill a hollow, only camouflage it temporarily. Hyaluronic acid filler placed under the eye restores the lost volume directly, lifting the skin back to the contour it had before the fat pads thinned.
This is explored further in our under eye filler before and after guide.
What does tear trough filler before and after look like?
The goal isn't to erase the tear trough — it's a normal contour on every face. The goal is to restore it to where it sat before volume loss deepened it into a shadow. Here's the timeline patients actually see, broken down by stage:
Day of treatment: The hollow fills as soon as the filler is placed. The transition from lower lid to cheek reads smoother immediately. Bruising and mild swelling are common in the first day or two — neither reflects the final result, so resist judging the outcome from a mirror the same afternoon.
1 to 2 weeks out: Swelling clears and the filler settles into its final position. This is the result that matters. The under-eye area looks brighter, the shadow that read as a dark circle recedes, and the face looks rested without looking altered.
What patients notice most: Other people clock the change without being able to name it — "you look rested" is the comment injectors hear more than any other. That's the tell of a well-placed tear trough result: it reads as restoration, not addition.
What filler won't do: It won't tighten loose lower-eyelid skin, won't fade dark circles caused by pigment rather than shadow, and won't reduce puffy under-eye fat pads — in some cases it can make prominent bags look more pronounced. Those three concerns need a different treatment entirely.
What results are realistic — and what are not
| Concern | Tear Trough Filler Helps | Tear Trough Filler Does Not Help |
|---|---|---|
| Under-eye hollowing | Yes — fills the hollow directly | |
| Dark circles from shadows | Yes — reduces shadow by lifting the hollow | |
| Dark circles from pigmentation | No — pigment does not respond to filler | |
| Under-eye puffiness (fat bags) | No — may make bags look worse | |
| Fine lines on eyelid skin | Indirectly, by lifting the tissue | Not a direct fix for lines |
| Sagging lower eyelid skin | No — needs surgery | |
| Sunken cheek adding to hollow | Yes, if mid-face filler is added |
Good candidate screening matters here more than with most fillers. An injector who skips this step gets poor results. If you have puffy bags under your eyes, an oculoplastic surgeon may be a better fit than an injector.
The Makeover Tear Trough Candidacy Framework
Not everyone is a good fit for tear trough filler. Use this table to check if your concern is likely to respond well.
| Assessment Factor | Good Candidate | Poor Candidate |
|---|---|---|
| Cause of dark circles | Shadow from hollow | Pigment or visible blood vessels |
| Under-eye fat pads | Flat or minimal | Puffy or prominent bags |
| Skin thickness | Medium to thick | Very thin skin |
| Skin firmness | Firm, minimal loose skin | Loose or crepey lower eyelid |
| Age | Any — volume loss is the issue | Not age-based, anatomy-based |
| Anatomy | Hollow visible at rest | Fat bags more prominent than the hollow |
How to use this: Count your Good Candidate matches. Four or more means you're a strong candidate for filler alone. Two or fewer means the conversation with your injector should include surgical options, not just syringe volume.
Where you land on this table is exactly what a pre-treatment preview should confirm before you commit — more on that below.
How long does tear trough filler last?
Tear trough filler outlasts most other filler treatments because the under-eye area moves so little day to day — less muscle movement means the hyaluronic acid breaks down more slowly than it would in the lips or cheeks.
A Journal of Clinical and Aesthetic Dermatology retrospective study found strong results at 18 months. Outcomes at 6, 12, and 18 months were largely the same.
A PubMed systematic review and meta-analysis looked at 2,556 patients across 31 studies. It found a 91% patient satisfaction rate. Average treatment duration was 10.8 months. Most patients need one top-up per year. The American Society of Plastic Surgeons' annual statistics provide broader context on filler use trends.
Key factors that affect how long results last:
- Metabolism: Fast metabolisers break down filler sooner. Active patients may need earlier top-ups.
- Volume placed: A slightly higher fill (within safe limits) extends the effect.
- Product choice: Thicker HA products like Restylane Lyft last longer under the eye.
- Lifestyle: Sun exposure, smoking, and poor skin health speed up filler breakdown.
What are the risks of tear trough filler?
The under-eye area carries the highest risk of any filler treatment zone — not a reason to avoid it, but a reason to choose your injector with more scrutiny than you'd apply to lips or cheeks. Read the FDA's guidance on dermal fillers before your consultation.
A PMC prospective safety study tracked side effects in tear trough patients:
- Bruising: 75% of patients — resolves in 5 to 10 days
- Swelling: 26% of patients — resolves within 1 week
- Lumpiness: 33% — clears with massage or dissolving
- Tyndall effect (blue-gray skin tone): 4% — caused by filler placed too close to the surface; treated with hyaluronidase
The most serious risk is vascular occlusion — filler blocking a blood vessel. It's rare, but it can damage tissue fast if it goes unnoticed, which is why an injector who keeps hyaluronidase on hand at every single appointment (not just "somewhere in the office") is a non-negotiable.
What to look for in your injector:
- Uses a cannula (blunt tip) rather than a sharp needle alone
- Keeps hyaluronidase at every session
- Reviews your anatomy and flags any risks before treatment
- Never skips numbing cream or rushes the consult
This treatment requires a trained medical provider with specific periorbital injection experience. The eye area has dense blood vessels and a small margin for error.
How much does tear trough filler cost in 2026?
Per Healthline's cost overview, one syringe of hyaluronic acid filler costs $684 to $1,500. Most tear trough cases use 0.5 to 1 syringe per side. RealSelf's tear trough ratings show verified patient reviews and worth-it scores from real cases.
| Cost Factor | Typical Range (US, 2026) |
|---|---|
| Cost per syringe (HA filler) | $684 – $1,500 |
| Volume needed per treatment | 0.5 – 1 syringe each side |
| Total treatment cost | $800 – $2,500 |
| Maintenance (annual) | $600 – $1,200 |
Less filler is used here than in the cheeks or lips, but the skill required is disproportionately high — pricing reflects the injector's experience as much as the product volume.
Don't pick an injector on price alone. Correcting a vascular occlusion or Tyndall effect costs far more, in money and downtime, than whatever a discount session saved you.
Image: Free photo via Pexels
How to preview your tear trough filler result before treatment
Tear trough filler gives one of the clearest, most predictable results of any non-surgical treatment — which makes it a strange treatment for patients to still be going in blind. Most consultations rely on a mirror, a verbal description, and stock before-and-after photos of someone else's face. That gap between what a patient imagines and what filler can realistically deliver is where most post-treatment disappointment comes from, and it's entirely preventable.
Makeover builds this kind of preview software for med spas: a patient's own photo, run through the practice's tool, becomes a photorealistic simulation of their own tear trough result in under 10 seconds. No stock comparisons, no guesswork about how it'll look on their specific anatomy. Practices that use it during consultation get patients into the chair already aligned on the outcome, which shortens the conversation and cuts down on "this isn't what I expected" follow-ups.
If your candidacy table above landed on "poor candidate," a preview is also the fastest way to see that on your own face before booking anything — sometimes the honest answer is a referral to a surgeon, not a syringe.
See how Makeover builds AI preview software for med spas →
Choosing the right injector
Only a trained medical provider should perform tear trough filler. In the US, this means a physician, nurse practitioner, or registered nurse with proven periorbital injection experience. Use the American Board of Cosmetic Surgery's Find a Surgeon directory to check board certification before you book.
Questions to ask before booking:
- How many tear trough cases do you do each month?
- Do you use a cannula, a needle, or both — and why?
- Do you have hyaluronidase on-site?
- Can I see before-and-after photos of cases like mine?
- What is your plan if I get bruising, lumps, or discolouration?
Combining with other treatments:
Many patients get better results when tear trough filler is paired with mid-face filler. Cheek volume lifts the tissue from below and supports the under-eye result. Our jawline filler before and after guide covers this structural approach in detail.
A good injector looks at your full mid-face, not just the hollow under your eye.
Ready to see your under-eye transformation?
Before you book, ask your injector how they'll show you the result, not just describe it. If you run a med spa or injectables practice and want to give patients that certainty before they ever sit in the chair, share your details with Makeover and our team will scope a custom preview tool for your practice.