In short
- 🔑 Filler adds volume; it does not change position. If your problem was the distance between your nose and your lip, no amount of filler was ever going to solve it.
- 🚨 And there is an effect that makes the feeling worse: in a lip that is already long, adding volume adds weight. The lip looks fuller and sits just as low — sometimes with the feeling of drooping more.
- It is a frequent profile with a name of its own in the consulting room, not a rarity.
- The first step is not to operate: it is to see the real lip. Measuring a lip with recent filler in it distorts the indication, because the shape being measured is not yours.
- Hyaluronic acid can be dissolved with an enzyme that breaks it down. And the advisable thing is to do it before surgery, leaving at least a week, so that assessment and measurement are done on the real lip.
- ⚠️ And a critical distinction: not all fillers are dissolvable. If what you have is a permanent material, this is another conversation, and a considerably more serious one.
- On the safety of filler there is good data: in the meta-analysis of randomised trials, serious adverse effects were 1.1%, although adverse effects in general were common (50%).
- 🔑 The practical conclusion: this is not about swapping one thing for another, it is about having been treating the wrong problem.
It is a profile that turns up more and more in the consulting room and that almost nobody writes about: someone who has spent years having filler in their lips, who has volume to spare and who is still not happy — because the lip is sitting exactly as low as it was on day one.
It is not the fault of whoever injected it. It is that filler never shortened anything, and could not have done.
Why filler did not solve it
It is worth understanding properly, because it removes blame and puts the decision in order.
An upper lip has two independent dimensions: the distance between the base of the nose and the border of the red lip, and the volume of the red lip.
Filler acts on the second. It is injected into the vermilion or into its border, and it swells it. The skin above — the stretch that had lengthened — is not touched at any point.
🔑 In other words: if what bothered you was that your mouth sits low in your face, filler was never going to raise it. And every session reinforced the same feeling: more lip, same position.
And there is an added effect. In a long lip, the extra volume weighs. That can accentuate the impression of droop rather than compensate for it. It is why some people describe how “the more I had put in, the worse it looked to me”.
First of all: see the real lip
Here is the mistake to avoid, and it is not the patient’s: assessing a lip lift on a lip with recent filler in it.
The measurements that decide the indication — how long the philtrum is, how much vermilion shows, how much tooth appears at rest — are all altered when there is product inside. The lip looks fuller and the border is displaced, so the face being measured is not the face that will be left once the filler is reabsorbed.
⚠️ And that matters a great deal in a surgery where overshooting cannot be reversed. If how much skin to remove is calculated on an artificially full lip, the sum can come out wrong.
And the criterion of the house is specific: the advisable thing is to dissolve the filler before surgery, at least a week beforehand. That margin is what allows the lip to return to its own shape and what is measured to be yours and not the product’s.
🔑 The order, therefore, is: dissolve first, then see the real lip, then measure, then decide. Skipping the first step turns the whole plan into an estimate made on a borrowed lip.
Dissolving the filler: what it involves
Hyaluronic acid has a peculiarity that sets it apart from almost any other injectable material: there is an enzyme capable of breaking it down, so the effect can be reversed.
What is worth knowing:
- It is neither instant nor always complete, and in lips carrying years of accumulated product it may take more than one session.
- It is a medical procedure, with its own assessment and its own risks, not a simple undoing.
- And it lets the real lip be seen, which is what this is about.
⚠️ This page describes the procedure in clinical terms and does not offer it. The indication, the product and the regimen are for a professional to determine in consultation.
✅ And the dissolving is done here, at the clinic itself. There is no need to look for it elsewhere or to coordinate two centres: it is dissolved, at least a week is allowed to pass and, on that now-real lip, the assessment, the measurement and the decision are made.
🚨 If what you have is not hyaluronic acid
This is the part that changes the conversation, and it always has to be asked about.
Not all fillers are absorbable. There are materials that do not break down — the ones advertised as “permanent” or “long-lasting” — and for which no enzyme is any use: they can only be removed surgically, and not always completely, because they tend to integrate with the tissue.
Signs that it may not be hyaluronic acid:
- It was injected many years ago and it is still there.
- It was advertised as “permanent”, “definitive” or “for ever”.
- You can feel hard lumps, irregular areas or migration of the material.
- You do not know what was injected and you no longer have the name of the product.
🔑 If you recognise yourself in any of those four, the conversation does not start with the lip lift. It starts with finding out what you have inside you. Everything ICPM has published on permanent materials, their long-term complications and their removal is in the removal of biopolymers.
But it is not a dead end
The material being permanent does not close the door on a lip lift. It changes the order and lengthens the timescales:
- Partial removal of the material, or a cheiloplasty if what is called for is acting on the lip itself. It is surgery, not an injection, and not everything is always removed: permanent material tends to integrate with the tissue.
- Six months of waiting. The tissue has to settle and the swelling go down before the measurements mean anything.
- Then the lip lift can be scheduled.
⚠️ These are long timescales and it is best to hear them at the outset, not halfway through: more than half a year passes between removal and the definitive surgery. The difference between cheiloplasty and the lip lift — which are not the same thing and are often confused — is covered in cheiloplasty and lip lift.
What surgery can recover and what it cannot
What surgery does do: it shortens the distance between the nose and the lip, unfurls the red border and brings back the tooth visible at rest. In the systematic review covering 1,754 patients, the philtrum went from 14.0-14.5 mm to 10.8-12.0 mm and vermilion height from 5.0-6.0 to 7.0-9.0 mm.
🔑 And there is a consequence that surprises this particular profile: as the red border unfurls, the lip shows more without anything having been added. Quite a few people who arrive asking for volume discover, after surgery, that they no longer need it — because the lip they already had now shows.
What surgery does not do:
- It does not return a deformed lip to its original shape. If years of product have altered the structure, the lip lift corrects the position, not the shape of the tissue.
- It does not erase the vertical lines, which are covered in upper lip lines and the barcode.
- It does not remove material. It is surgery on skin, not an extraction.
⚠️ And a warning about expectations: arriving at surgery after years of dissatisfaction with another treatment is a factor to bear in mind. The scale of this operation is two or three millimetres, and anyone expecting it to resolve years of accumulated frustration may end up disappointed again. It is covered in results and duration.
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Frequently asked questions
How long do I have to wait since my last filler?
The advisable thing is to dissolve it, at least a week before surgery. The reason is simple: measuring a lip with recent filler in it is no use, because what is being measured is the product and not the lip.
Do I have to have it all dissolved?
Not necessarily: it depends on how much is left, where it is and whether it distorts the measurements. It is a clinical decision, not a rule.
Will I be able to have filler again after surgery?
It is a possibility, and sometimes that is the logical sequence: surgery first for the position and, if volume is missing afterwards, a small amount of filler. The other way round works less well. It is covered in lip lift or hyaluronic acid.
I have spent a lot of money on fillers — was it all pointless?
Not exactly: the filler did what filler does — give volume. What happened is that it was not the treatment for your problem, and that is a question of indication. It is also why this site insists so much on separating the two problems before treating either.
Is it harder to operate on a lip that has had a lot of filler?
It is a different situation from a lip that has never been treated, and the critical point lies in the assessment rather than in the technique: the measurements have to be taken on the real tissue.
✅ But years of filler do not change the surgical criterion or rule anybody out: the operation is the same. The only thing that changes is the step before it — dissolving, and waiting for the lip to become yours again.
And what if I do not know what was injected?
It is more common than it sounds and it is reason enough not to operate yet. The first step is to identify the material, and if there is any suspicion that it may be permanent, the route is set out in removal of biopolymers.
Sources
- Komisarek O, Banasiak Ł, Olichwer V, Burduk P. The Bullhorn and Beyond: Evidence-Based Review and Clinical Recommendations for Lip Lift Techniques. Journal of Cosmetic Dermatology, 2026. PMID 41731334. — PRISMA 2020 systematic review of 7 studies and 1,754 patients; subnasal techniques reduced philtrum length from 14.0-14.5 mm to 10.8-12.0 mm and increased vermilion height from 5.0-6.0 mm to 7.0-9.0 mm; patient selection remains unstandardised.
- Edward Wen Y, Perez Rivera LR, Wyatt HP, Lee WY, Oh C, Boyd CJ, Karp NS. Efficacy and Safety of Hyaluronic Acid Lip Fillers: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Aesthetic Surgery Journal, 2026. PMID 41186199. — Meta-analysis of 16 randomised controlled trials; improvement in lip volume in 60%, in aesthetic appearance in 82% and satisfaction of 68%; adverse effects in 50% and serious adverse effects in 1.1%; the most frequent were swelling, induration, bruising and discomfort; the conclusion was that efficacy and satisfaction are moderate to high, with serious reactions rare and adverse effects common.
- Sun F, Liu Y, Zhang T. Aging of the Human Lip: Current Knowledge and Clinical Implications. Journal of Cosmetic Dermatology, 2025. PMID 40735924. — The lip differs from facial skin in barrier function, melanin content, absorption capacity, physiological activity and fat distribution, with ageing features of its own.
Book your consultation
If you have had filler for years and are not quite happy, the useful consultation does not start by asking which treatment to have, but what you have in place and what your lip really looks like. From there it can be measured and decided — and sometimes the conclusion is that what was needed was not more of the same.
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Last reviewed: 6 September 2026. This content is for information only and does not replace an individual assessment by a healthcare professional.
