Under-Eye and Tear Trough Filler: What the Four FDA Approvals Actually Show

Reviewed for medical accuracy against our Medical Review Board  ·  Last updated 31 August 2026

Four hyaluronic acid fillers hold an FDA approval for the infraorbital hollow, the shadowed groove under the eye that is also called the tear trough. Query the FDA's own approval database for the word infraorbital and you get exactly four results, which is why this page says four rather than "several".

All four approvals were granted for patients over the age of 21. All four trials compared the filler against no treatment at all. None of them compared one filler against another, and that single fact turns out to govern everything you can and cannot conclude from their published success rates.

The short version. Every one of the four works, in the sense that each beat doing nothing by a wide and statistically significant margin. But the four success rates published by the four manufacturers are measured on four different rulers, so ranking them by those numbers is meaningless, and depending on which number you pick the ranking reverses. The detail below is read from the FDA approval documents, which run to 157 pages between them.

The four approved options, and the exact wording of each approval

An approval is specific. It names the product, the region and the population, and the wording is what the manufacturer is permitted to claim. Here is each one as the FDA states it.

ProductFDA approvalApproved Manufacturer
Juvéderm Volbella XCP110033/S05328 May 2021Allergan
Restylane EyelightP040024/S1358 May 2023Galderma
Belotero Balance (+)P090016/S05027 September 2023Merz
RHA Redensity EyeP170002/S05012 May 2026Teoxane

The newest of them is worth noting on its own. RHA Redensity Eye was approved in May 2026, and its indication is written in unusually specific anatomical terms: injection into the sub-dermis and supraperiosteum, which is to say both just under the skin and down on the bone. Most consumer articles about under-eye filler predate it entirely.

Why you cannot rank these four by their success rates

Each manufacturer measured improvement with a scale it developed itself.

ProductScale used in the pivotal trial
Volbella XCAIHS, the Allergan Infraorbital Hollows Scale
Belotero Balance (+)MIHAS, the Merz Infraorbital Hollowing Assessment Scale
RHA Redensity EyeTIOHS, the Teoxane Infra-orbital Hollows Scale
Restylane EyelightGalderma's own hollowing scale, with GAIS alongside it

A "responder" means a patient who improved by at least one grade on that particular scale. Since the four scales are different instruments, a responder is a different achievement in each trial. That is not a theoretical objection, and the trials themselves prove it. Look at what happened in the arms that received nothing at all.

ProductTreatedNo treatment DifferenceMeasured at
Restylane Eyelight87.4%17.7%69.7%Month 3
Volbella XC83.1%15.6%67.5%Month 3
Belotero Balance (+)80.6%1.9%78.7%Week 8
RHA Redensity Eye79.0%9.8%69.3%Week 12

The untreated groups scored 1.9%, 9.8%, 15.6% and 17.7%. Nobody in those groups received any filler, so their hollows did not improve. What differed was how readily each scale recorded an improvement. On Merz's scale, one untreated patient in fifty-three was scored as improved. On Galderma's, closer to one in six.

Which is why the ranking inverts. By raw success rate the order is Restylane 87.4, Volbella 83.1, Belotero 80.6, RHA 79.0. By how far each beat its own control, the order is Belotero 78.7, Restylane 69.7, RHA 69.3, Volbella 67.5. Belotero is last on the first measure and first on the second. Both sets of numbers come from the same four FDA documents. Any article that ranks these products by the headline percentage has picked one arbitrary ruler and called it a verdict.

The honest conclusion from all four trials together is narrower than a ranking, and more useful: each of the four produced a large, statistically significant improvement over doing nothing, and no published evidence exists that any one of them outperforms another in this area, because the study that would show it has never been run.

Needle or cannula, and what two trials found

Clinics often present a blunt cannula as the better choice under the eye, on the reasoning that it pushes past vessels rather than piercing them. Two of these four trials recorded results by instrument, and neither supports the idea that a cannula gives a better cosmetic result.

Belotero's trial reported the Week 8 responder rate separately for each. Injections given with a needle scored 87.4% against 73.7% for a cannula. Separately, Volbella's approval document states that injections with a needle had a lower rate of injection site reactions than injections with a cannula.

Read that carefully, because the limit matters. The two Belotero confidence intervals overlap a long way, 75.0 to 94.1 for the needle against 59.4 to 84.3 for the cannula, on roughly fifty patients each. That means the trial does not demonstrate that needles work better. What it does do is remove the evidence base from the opposite claim. If a clinic tells you a cannula will give you a better result here, the approval documents do not support that, and you are entitled to ask what does.

Choice of instrument is a clinical judgement about your anatomy, and a practitioner who has a considered reason for either is telling you something useful. One who presents a cannula as categorically superior for the tear trough is repeating marketing.

How long it lasts

Only one of the four published a twelve-month figure this precisely. In the Volbella trial, 73.4% of patients, 69 out of 94, were still counted as responders at the twelve-month visit, against 83.1% at three months. Patient-reported scores moved in the same direction: the FACE-Q lower eyelid score rose from 54.4 at baseline to 72.6 at Month 3.

That is a real durability signal and also a realistic one. Roughly nine in ten of the improvement present at three months was still being recorded at twelve, but not all of it, and a twelve-month figure is not a promise of twelve months for you. Under-eye skin is thin and mobile, and this is the area where filler is most often reported as visible or lumpy later on. Our guide to what filler recovery actually looks like covers the first two weeks in detail.

What under-eye and tear trough filler costs

No manufacturer publishes a patient price for any of the four, and we do not publish figures we cannot source. What can be said accurately is how the area is priced and what changes the number.

Under-eye filler is sold by the syringe, not by the unit, which is the first thing to get straight if you are coming from Botox pricing. A syringe is typically 1 ml and the infraorbital hollow rarely takes a full one per side, so the practical question at a consultation is not the price per syringe but how much of a syringe your hollows need and whether you are charged for what is used or for the whole thing. Ask which, because both models are common and they produce very different bills for the same treatment.

Three things move the price more than the brand does:

Those patterns come from the verified prices on our city pages, where we publish what each clinic actually states, including when it states nothing.

The risk that makes this area different

This is the part that belongs above any discussion of price. All four approval documents carry the same warning, in near-identical language: injection into a blood vessel can cause vascular occlusion, and the documented consequences include vision impairment and blindness, as well as skin necrosis and, in reported cases, stroke.

The infraorbital region is close to vessels that connect to the ocular circulation, which is why this warning appears on every one of the four and why it is not boilerplate. These are rare events. They are also the reason the question of who is holding the syringe matters more here than almost anywhere on the face, and the reason we publish a state-by-state guide to checking an injector's licence.

The ordinary side effects are far more common and much less alarming. Belotero's trial recorded injection site swelling as the most frequent treatment-related event, in 9 of 144 patients. Tenderness, bruising, visible lumps and redness were the most commonly reported in the others. Our filler complications guide covers what is routine, what is not, and what warrants an urgent call.

What to ask before you book

  1. Which of the four are you using, and why that one? All four are approved for this area. A specific reason is a good sign; "it's the best one" is not, because no trial has compared them.
  2. Is it approved for under the eye, or are you using something off-label here? Many fillers are used in this area without an infraorbital approval. That is legal and sometimes appropriate, but you should know which situation you are in.
  3. How much product do you expect to use, and am I charged for that or for the full syringe?
  4. Needle or cannula, and what is your reason? Either answer can be right. The reason is the informative part.
  5. What is your plan if this migrates or stays lumpy? All four are hyaluronic acid, which means hyaluronidase can dissolve them. That is a genuine advantage of this whole category and worth confirming they carry it.

If your concern under the eye is a dark shadow rather than a hollow, or crinkling rather than volume loss, filler may not be the right tool at all, and Botox under the eyes covers why most injectors decline that request.

Frequently asked questions

Is tear trough filler the same as under-eye filler?
Yes. The tear trough is the groove that runs down and outwards from the inner corner of the eye, and the FDA calls the region the infraorbital hollow. All three terms describe the same area, and the four approved products are approved for it under the infraorbital wording.
Which under-eye filler is best?
No published evidence identifies one. Volbella XC, Restylane Eyelight, Belotero Balance (+) and RHA Redensity Eye each beat no treatment by a wide margin in their own trials, but every trial used the manufacturer’s own measurement scale and none compared one filler against another. The apparent ranking even reverses depending on whether you read the raw success rate or the improvement over each trial’s own control group.
How long does under-eye filler last?
The best documented figure comes from the Volbella trial, where 73.4% of patients were still counted as responders at twelve months, against 83.1% at three months. Individual results vary, and the under-eye area is thin and mobile, so a trial average is a guide rather than a forecast.
Is a cannula safer than a needle under the eye?
The approval documents do not show that a cannula produces a better cosmetic result. Belotero’s trial reported 87.4% success with a needle against 73.7% with a cannula, though those confidence intervals overlap enough that the difference is not established. Volbella’s documents report fewer injection site reactions with a needle. Instrument choice is a clinical judgement, and a practitioner should be able to give you their reason.
Can under-eye filler be dissolved?
Yes. All four approved products are hyaluronic acid, so hyaluronidase can break them down. That is a meaningful advantage over fillers that are not hyaluronic acid, such as Radiesse, which cannot be dissolved. Confirm your clinic keeps hyaluronidase on site.
What is the most serious risk?
Injection into a blood vessel. All four approval documents warn that vascular occlusion in this region can cause vision impairment and blindness, along with skin necrosis. Such events are rare, but the infraorbital area sits near vessels connected to the eye, which is why the warning appears on every one of the four.

Sources

Every figure on this page was read from the documents below rather than from a clinic or a manufacturer's marketing. They open in a new tab so you can check any claim here against its source.

Lucas Pradella, founder of BestBotoxClinics.com

Written by

Lucas Pradella

Founder & Lead Researcher, BestBotoxClinics.com

Lucas founded BestBotoxClinics.com to bring clarity to the aesthetics industry, bringing 13+ years of experience in digital research and analysing online data for signals of quality and trust. He is not a physician, his work is research, data analysis and verifying provider credentials.

Medical accuracy: BestBotoxClinics.com maintains a Medical Review Board of licensed clinicians. This article is educational and is not medical advice.