Corner Lip Lift for Downturned Mouth Corners

Of all the complaints that bring patients to Dr. Farhad Rafizadeh’s Morristown office, one of the most frustrating to live with has nothing to do with volume, wrinkles, or sagging skin in the usual sense. It is the resting expression. The mouth settles into a downward tilt, and strangers begin asking what is wrong. This exact concern comes up repeatedly on his RealSelf Q&A page, usually in some version of the following:

It is a good question with an unusually specific answer, because the corner lip lift is one of the few facial procedures where the entire decision turns on a single variable: the scar.

Dr. Rafizadeh’s Direct Answer

Four sentences, and they contain the whole framework. The operation works. Part of the scar hides beautifully. Part of it does not hide at all. And the decision therefore rests less on the anatomy of the mouth than on the biology of the individual patient’s skin. Each of those deserves unpacking.

What Is a Corner Lip Lift?

A corner lip lift — also called a grin lift, a corner-of-the-mouth lift, or an oral commissure lift — removes a small wedge of skin immediately above each corner of the mouth. Closing that wedge rotates the corner upward and flattens the downward tilt, so the mouth at rest reads as neutral rather than as displeased.

It is important to separate it from the operation most people mean when they say “lip lift.” The subnasal or bullhorn lip lift removes skin underneath the nose to shorten a long philtrum and reveal more upper tooth. That procedure changes the height of the upper lip. A corner lift changes the angle of the mouth. They solve different complaints, they leave scars in entirely different places, and the fact that they share a name causes a great deal of confusion at consultation.

Why Do the Corners of the Mouth Turn Down?

There are three separate mechanisms, and most patients over fifty have some combination of all three. Distinguishing them is what determines whether surgery is the right tool.

Muscle. The depressor anguli oris, a triangular muscle running from the jawline up to the corner of the mouth, does exactly what its name says: it pulls the corner down. In some people it is simply dominant, and always has been. The patient who says “I’ve always looked like this, even in childhood photos” is usually describing a muscular pattern rather than an aging one.

Descent. With age, the soft tissue of the midface and jawline drifts downward, and the corner of the mouth is carried with it. This is the version that produces marionette grooves running from the corner toward the jaw, and it is the version that will not respond well to treating the corner in isolation.

Skin and volume. Sun exposure, smoking, and simple time thin the skin and deflate the fat pads that used to support the corner. Loss of support lets the corner fold and settle, which deepens the groove beside it and casts a shadow that reads as a frown even when the muscle is behaving.

Where the Scar Goes — and Why the Lateral Extension Is the Real Question

This is the part of the conversation that decides everything, and it is where Dr. Rafizadeh’s answer is most precise.

The favorable portion of the incision sits at the vermilion border — the junction where the red of the lip meets ordinary facial skin. That line is already a visible transition in color and texture, and a well-placed scar disappears into it remarkably well. If the entire excision could be kept there, the corner lip lift would be a nearly scarless operation.

It cannot. To rotate the corner upward, the excision has to extend a short distance past the corner of the mouth, laterally onto plain cheek skin. There is no border there. No color change, no anatomic line, nothing to hide in. That extension is the scar patients see in photographs of poor results, and it is the reason a thoughtful surgeon spends more consultation time on healing history than on the procedure itself.

The surgeon who told the patient above that her commissures were “too long” was making a legitimate observation, if an incomplete one. A wider mouth requires a longer excision to change the angle meaningfully, and a longer excision means proportionally more incision sitting out on unprotected cheek skin. That is a real geometric constraint. It is a caution, though, not a verdict — which is precisely why Dr. Rafizadeh reframes the question around healing rather than around measurement.

“An Excellent Healer”: How Candidates Actually Get Screened

The same incision, placed identically by the same surgeon, can vanish in one patient and remain a pale visible line in another. That variability is not technique. It is biology, and it is largely knowable in advance if the right questions get asked.

• Scar history. Previous surgical scars, C-sections, appendectomies, even significant childhood injuries — how did they mature? Flat and pale, or raised, wide, and persistently pink?
• Keloid or hypertrophic tendency. A personal or family history of keloid formation is close to a disqualifier for an incision that cannot be hidden.
• Skin type and tone. Thicker, more sebaceous skin and darker Fitzpatrick types carry a higher risk of hypertrophic scarring and of post-inflammatory pigment change at the incision.
• Smoking and nicotine. Nicotine constricts the small vessels that supply a healing wound edge. In perioral surgery this matters more than patients expect.
• Sun behavior. A fresh facial scar exposed to sun in the first several months will hyperpigment, and that pigment can be slow to resolve.

A patient with a clean healing history and a genuine functional complaint is a reasonable candidate even with longer commissures. A patient who has thickened every scar she has ever had should hear a straightforward no, regardless of how good a candidate the mouth itself may look.

What the Published Evidence Actually Shows

Mouth-corner lifting has been studied, though not as rigorously as patients would hope. A 2022 systematic review in the Aesthetic Surgery Journal screened 968 studies and included 11, covering 962 patients — 426 treated with invasive techniques and 536 with noninvasive ones. It is the best synthesis currently available, and its findings are worth stating plainly because they cut in both directions.

The favorable finding: surgical techniques produced a better lifting effect than nonsurgical ones. The unfavorable findings arrived in the same sentence. The authors concluded that objective evidence remains weak, that many published techniques do not produce a significant elevation of the corner at all, and — their word — that a scar is “inevitable.”

The complication data is reassuring on safety and honest on aesthetics. No severe adverse events were reported in either group. Minor events such as swelling and bruising occurred in 14.3 percent of patients overall. Among surgical patients, an obvious or disturbing scar was reported in 3.8 percent.

Can Botox or Filler Fix Downturned Corners Instead?

For a great many patients, yes — at least well enough to be the right first step, and certainly well enough to find out what a lifted corner looks like on your own face before committing to a scar.

Botulinum toxin to the depressor anguli oris. Small, precisely placed doses weaken the muscle that pulls the corner down, letting the elevator muscles act unopposed. A published series of 36 patients with congenital downturned corners used two to four units per injection site, with a total not exceeding eight units per side, and documented significant improvement at one month with the effect maintained for six to nine months and no reported complications. The same systematic review described toxin to the depressor anguli oris as a scarless but temporary alternative to surgical lifting. The technical caveat is placement: the depressor anguli oris sits close to the depressor labii inferioris, and product that migrates into the wrong muscle produces an asymmetric smile until it wears off. This is an injection that rewards anatomic precision and punishes casual technique.

Hyaluronic acid filler. Filler placed to support the corner and efface the groove beside it improves the shadow that reads as a frown, but patients should calibrate expectations. The systematic review found that the filler studies it reviewed described no objective elevation of the corner. A more recent 50-patient study using ultrasound mapping of the labial artery did measure a real change — the oral commissure lifted by roughly one millimeter, with the corner angle reduced by about nine percent at one week. That is a genuine result, and it is also a millimeter. Filler at the corner is best understood as support and softening rather than as lifting.

When the Corner Is a Symptom, Not the Problem

The most common planning error in this area is treating a corner that has been dragged down by something larger.

If the cheek and jowl have descended, the corner of the mouth has descended with them. Lifting the corner in isolation in that setting produces a change that looks locally correct and globally odd — a lifted corner sitting in a face that has not been addressed — and the descent continues to pull against it. The literature on corner-of-the-mouth rejuvenation has long framed commissure downturn as the feature most likely to remain after an otherwise excellent facelift, which is a way of saying these two problems are related but not identical.

The sequence that works is diagnostic. Where has the tissue actually gone? If the answer is downward and lateral across the whole lower face, the support comes first and the corner is reassessed afterward — and it frequently needs less than it appeared to. If the answer is that the face is well supported and the corner alone turns down, a corner lift addresses the problem directly and does so with a small operation.

Questions Worth Asking Any Surgeon About a Corner Lip Lift

• How far lateral to my commissure will the incision extend, in millimeters?
• Based on my healing history and skin type, what do you expect that lateral portion to look like at one year?
• Would you treat my depressor anguli oris with toxin first, so I can see the change before committing to an incision?
• Is my corner descending on its own, or is it coming down with my cheek and jowl?
• What is your plan if the scar thickens — and at what point would you intervene?

A surgeon who answers the second and fourth questions specifically, using your face rather than generalities, is doing the part of this operation that matters most. The cutting is straightforward. The selection is not.

People Also Ask

Common Questions About Corner Lip Lifts and Downturned Mouth Corners in New Jersey

How can I fix downturned corners of my mouth?

There are three routes, and they are not interchangeable. Botulinum toxin into the depressor anguli oris relaxes the muscle that pulls the corner down and produces a measurable lift lasting roughly six to nine months. Hyaluronic acid filler supports the corner and softens the groove beside it, though the published filler studies did not demonstrate objective elevation of the corner itself. Surgical excision of skin at the corner is the only option that changes the resting position permanently, and it is the only one that leaves a scar. The right choice depends on how much of your downturn is muscle, how much is lost support, and how much is excess skin.

Where does the corner lip lift incision go?

Yes — skin is removed, so a scar is unavoidable. The favorable portion hides at the junction between the red vermilion and the surrounding skin, where the natural color change camouflages it well. The difficulty is that the excision must extend a short distance past the corner of the mouth onto ordinary cheek skin, where there is no border to hide in. In the 2022 systematic review of mouth-corner lifting, an obvious or disturbing scar was reported in 3.8 percent of surgical patients.

Is a corner lip lift permanent?

The skin that is removed does not come back, so the correction does not wear off the way an injectable does. What continues is aging: the midface keeps descending, the depressor muscles keep pulling, and volume around the corner keeps thinning. A corner lifted at fifty is not immune to looking heavier at sixty-five. Patients who also address the underlying descent tend to hold the result considerably longer than those who treat the corner alone.

Can Botox help downturned corners of the mouth?

It can, and for most patients it is the sensible first step. Small doses into the depressor anguli oris weaken the muscle that pulls the corner downward. In a published series of 36 patients with congenital downturned corners, two to four units per site with a total of no more than eight units per side produced significant improvement at one month, with the effect holding six to nine months and no complications reported. The caution is placement, since the depressor anguli oris sits near the depressor labii inferioris and product reaching the wrong muscle causes a temporarily uneven smile.

Does lip filler lift the corners of the mouth?

Less than most patients expect. The 2022 systematic review found that the filler studies it examined described no objective elevation of the corner. A more recent 50-patient study using ultrasound mapping of the labial artery did measure a real change, reporting the oral commissure lifted by about one millimeter with the corner angle reduced by roughly nine percent at one week. That is a genuine finding and it is also a millimeter, which is why filler at the corner is better described as support and softening of the groove than as a lift.

How long does it take to recover from a corner lip lift?

The procedure is done under local anesthesia and takes under an hour. Sutures come out at roughly five to seven days, and most patients are presentable for work within a week to ten days with some residual pink at the incision. The scar itself is on a much slower clock: it typically firms and reddens over the first six to twelve weeks before beginning to fade, and an honest assessment of how visible it will be is not possible until somewhere between six and twelve months.

What are the signs of a botched lip lift?

The recognizable problems are a scar that stays raised, white or wide rather than settling flat; a corner lifted asymmetrically so one side sits higher; an overcorrected result that reads as a permanent smirk; and, in a subnasal lip lift specifically, excessive tooth show or a nostril distorted by too aggressive an excision. Most of these trace back to planning and patient selection rather than to bad luck, which is why the scar conversation belongs before surgery and not after.

What is the best treatment to lift the corners of your mouth?

There is no single best treatment, because the corners come down for different reasons. If a dominant depressor anguli oris is doing the pulling, botulinum toxin into that muscle is the most direct answer and requires no incision. If the corner has lost support and folded, filler softens the shadow beside it without lifting much. If loose skin at the corner is the problem and the rest of the face is well supported, surgical excision is the only option that changes the resting position permanently. And if the whole lower face has descended, the descent is treated first and the corner reassessed afterward.

Can my oral commissures be too long for a corner lip lift?

That is the objection patients most often hear, and it is a reasonable one. A wider mouth with long commissures needs a longer excision to change the angle, which pushes more of the incision out onto cheek skin where nothing hides it. It is a caution rather than an absolute disqualification. In Dr. Rafizadeh’s view the deciding factor is not the length itself but how that particular person's skin heals, because the same incision that disappears in one patient stays visible in another.

Should I have a corner lip lift or a facelift for downturned mouth corners?

It depends on whether the corner is the problem or the symptom. A corner that has turned down while the rest of the face is still well supported is a local problem, and a corner lift addresses it directly. A corner that has been dragged down by descent of the cheek and jowl is a symptom of that descent, and lifting the corner alone tends to give a change that looks isolated and does not hold. In that second group, treating the underlying support and then reassessing the corner is the sequence that works.

Sources & References

1. van der Sluis N, Gülbitti HA, van Dongen JA, van der Lei B. “Lifting the Mouth Corner: A Systematic Review of Techniques, Clinical Outcomes, and Patient Satisfaction.” Aesthetic Surgery Journal. 2022;42(8):833–841. PubMed
2. Perkins SW. “The Corner of the Mouth Lift and Management of the Oral Commissure Grooves.” Facial Plastic Surgery Clinics of North America. 2007;15(4):471–476. PubMed
3. Qian W, Zhang YK, Lv W, et al. “Application of Local Injection of Botulinum Toxin A in Cosmetic Patients with Congenital Drooping Mouth Corner.” Aesthetic Plastic Surgery. 2016;40(6):926–930. PubMed
4. Kim JS. “9-Point Injection Technique for Lip Augmentation and Lip Corner Lifting Using Sonographic Imaging of the Labial Artery Pathway.” Aesthetic Surgery Journal. 2024;44(10):1080–1090. PubMed
5. Yamin F, McAuliffe PB, Vasilakis V. “Aesthetic Surgical Enhancement of the Upper Lip: A Comprehensive Literature Review.” Aesthetic Plastic Surgery. 2021;45(1):173–180. PubMed
6. American Society of Plastic Surgeons. “Dermal Fillers.” plasticsurgery.org
7. Dr. Farhad Rafizadeh, MD FACS. Patient question on corner lip lift candidacy and commissure length. RealSelf Q&A

Related Reading From Dr. Rafizadeh’s Blog

Patients considering lip and perioral surgery in Northern New Jersey may also find these useful:

• Lip Lift Surgery in New Jersey: What It Does and Who It Suits
• Lip Lift Scars: Preventing Cross-Hatching and Handling Revision
• Lip Filler Migration and Why a Lip Lift May Be the Answer
• Upper Lip Lines: Botox, Filler, or Resurfacing?
• Nasolabial Folds: Filler, Fat Transfer, or Facelift?

The Bottom Line

A corner lip lift does what it claims to do. It is a small, well-tolerated operation performed under local anesthesia, and for the right patient it changes a resting expression that has been misread by strangers for years. The published evidence supports that surgical lifting outperforms injectable lifting for this specific problem.

The evidence is equally clear that a scar is inevitable, that part of it will sit on skin with nothing to hide it, and that roughly one surgical patient in twenty-six ends up describing that scar as obvious or disturbing. Longer commissures raise that exposure. They do not by themselves settle the question — how you heal does, and that is knowable in advance.

If your mouth corners have turned down and you want an honest read on whether an incision is the right answer for your skin, Dr. Rafizadeh will examine the mechanism behind the downturn, review your healing history candidly, and tell you plainly whether to start with toxin, address the underlying descent, or proceed to a corner lift. Consultations are available in Morristown for patients across Summit, Chatham, Madison, Short Hills, and Northern New Jersey.