Not everyone who wants a fuller-looking lip is ready for filler. Some people just want a little more upper lip to show when they smile, without the volume, the cost, or the commitment that comes with a syringe of hyaluronic acid. That is where the Botox lip flip comes in.
It is one of the smallest neurotoxin treatments we do, usually just a handful of units, and it produces a subtle change rather than a dramatic one. Done well, no one can tell you had anything done—your top lip simply looks a touch more relaxed and present.
Here is exactly how the lip flip works, what it can and cannot do, and how it compares to traditional lip filler.
Quick summary: A Botox lip flip uses about 4–6 units of neurotoxin placed in the muscle around the upper lip (the orbicularis oris). Relaxing that muscle lets the lip edge roll slightly outward, showing a bit more pink and softening a gummy smile. It is subtle, lasts only about 2–3 months, and does not add real volume. If you want noticeable fullness, lip filler is the better tool; the lip flip is for a natural, understated lift.
What is a Botox lip flip?
A Botox lip flip is a quick injection of a few units of botulinum toxin into the muscle ringing your upper lip. By relaxing that muscle, the lip rolls or “flips” slightly outward, revealing a little more of the pink part. The effect is a fuller-looking top lip without adding any actual filler.
It takes just a few minutes, uses very little product, and is one of the more affordable neurotoxin treatments because of how few units are involved. Most people walk in on a lunch break and walk out without anyone noticing they had anything done.
How does the lip flip work?
The trick is the orbicularis oris, the circular muscle that surrounds your mouth and helps you purse your lips. When a small amount of neurotoxin relaxes the upper portion of that muscle, it stops pulling the lip border inward and downward.
With that downward tug eased, the upper lip naturally curls outward and shows more of its surface. You are not gaining tissue—you are simply revealing lip that was already there but tucked under. Think of it as un-rolling a lip rather than inflating one.
- Target muscle: the orbicularis oris around the upper lip.
- Effect: the lip edge rolls outward, showing more pink.
- Bonus: it can soften a gummy smile by reducing how high the lip lifts.
- No volume added: it changes position, not size.
How many units does a lip flip take?
Most lip flips use about 4–6 units of neurotoxin total, split between a few small injection points along the upper lip. That is a tiny dose compared with the 20 or more units used for frown lines, which is part of why the treatment is so affordable.
Your injector may adjust the number based on how strong your lip muscle is and how much movement you want to keep. Too many units can make it hard to sip from a straw or pronounce certain sounds, so a conservative, experienced hand matters here.
How long does a lip flip last?
A lip flip typically lasts about 2–3 months, which is shorter than neurotoxin results in other areas. The lip muscle is small, constantly in motion from talking, eating, and drinking, so it metabolizes the product faster.
Because it fades sooner, many people schedule touch-ups a few times a year. If you want a refresher on how neurotoxin longevity works across the face, our guide on how long Botox lasts explains the factors at play.
Who is a good candidate for a lip flip?
The best candidates have a thin or disappearing upper lip that they want to soften slightly, or a gummy smile they would like to tone down. It is also a good entry point for people curious about lip enhancement who are not ready for filler.
- You have a thin upper lip that flattens or rolls under when you smile.
- You show a lot of gum when you smile and want to reduce that.
- You want a subtle change, not obvious fullness.
- You want to test the waters before committing to filler.
A lip flip is not ideal if you want real, measurable volume or a defined border—those goals call for filler instead.
Lip flip vs lip filler: what is the difference?
The simplest way to think about it: a lip flip changes how your lip sits, while filler changes how much lip you have. They solve different problems, and some patients even combine them for a balanced result.
If your real goal is fuller lips with shape and structure, take a look at our lip filler options, which use hyaluronic acid to build measurable volume that lasts much longer.
What to expect during a lip flip
A lip flip is one of the quickest treatments in the office. After a short chat about your goals, your injector cleans the area and places a few tiny injections along the upper lip border. The whole thing takes just a few minutes, and most people are surprised by how fast it is over.
You can apply a topical numbing cream first if you are sensitive, but the needle is very fine and the injections are shallow, so many patients skip it. There is no real downtime—you can head back to work or run errands right after.
Lip flip aftercare and what to avoid
Aftercare is minimal, but a few simple steps help the product settle exactly where it was placed and keep your results clean.
- Stay upright for about four hours after treatment.
- Avoid rubbing, pressing, or massaging your lips that day.
- Skip strenuous exercise and heavy alcohol for the rest of the day.
- Be gentle with straws and hot drinks for a day or two while the area settles.
- Expect a brief adjustment period where pursing or whistling feels slightly different.
Because the lip muscle controls a lot of fine movements, a small number of people notice it is briefly harder to pronounce certain sounds or sip through a straw. Using a conservative dose keeps this minimal, and any effect resolves as the product wears off.
How soon will you see lip flip results?
Most people start to notice the effect within about 3–5 days, with the full result by roughly two weeks—the same general timeline as neurotoxin elsewhere. Because the change is subtle, it can be easy to miss until you catch yourself smiling in a photo and notice a little more lip showing.
If you do not see much change after two weeks, your injector can assess whether a small touch-up is warranted. Some lips have stronger muscles than others and may need a slightly different dose to flip the way you want.
Combining a lip flip with other treatments
The lip flip plays well with others. Many patients pair it with filler for a balanced result—filler builds the volume and shape, while the flip adds a subtle outward roll on top. Your injector may stagger the appointments so each settles properly before adding the next layer.
It also fits naturally into a broader neurotoxin session. If you are already in for frown lines or crow’s feet, adding a lip flip takes only a moment and a few extra units. Bundling areas into one visit saves trips and keeps your overall look cohesive.
FAQ
How much does a Botox lip flip cost?
Because it uses only about 4–6 units, a lip flip is one of the more affordable neurotoxin treatments. Exact cost depends on your provider’s per-unit pricing. Ask during your consultation for a unit-based quote before treatment.
Does a lip flip hurt?
Most people describe it as a few quick pinches. The injections are shallow and the needle is very fine. A topical numbing cream can be applied first if you are sensitive, but many patients skip it because the treatment is so fast.
Will a lip flip make my lips bigger?
Not in the way filler does. A lip flip does not add volume—it relaxes the muscle so your existing upper lip rolls outward and shows more pink. The result looks like a slightly fuller lip, but you are revealing tissue, not adding it.
How soon will I see results from a lip flip?
Most people notice the effect within about 3–5 days, with the full result by around two weeks. Because the change is subtle, it can sneak up on you—you may simply notice more lip showing when you smile.
Can I get a lip flip and lip filler together?
Yes. Many patients combine them. Filler builds volume and shape, while the lip flip adds a subtle outward roll on top. Your injector will sequence them appropriately and may stagger the appointments for the best result.
Are there any side effects of a lip flip?
Temporary effects can include mild trouble pursing the lips, sipping through a straw, or pronouncing certain sounds, usually for a week or two. Using a conservative dose with an experienced injector keeps these minimal. Bruising at injection points is uncommon but possible.
Medically reviewed by clinical staff at OC Weight Loss and Medspa. Last updated May 2026.
Try a lip flip in Mission Viejo
A lip flip is one of the easiest ways to refresh your smile without committing to filler. Our injectors will assess your lip movement, recommend the right number of units, and keep the result natural. Book a consultation to see if it suits you.
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