If you scrunch your nose when you smile or laugh, you have likely noticed small diagonal creases along the sides of the nose. Those are bunny lines. On some faces they barely flicker, on others they etch in like shorthand every time emotions show up. When those lines start to stick around between expressions, a light touch of botulinum toxin can soften them without flattening your smile.
I have treated bunny lines for more than a decade, and the best outcomes come from restraint, precise placement, and honest conversation about what Botox can and cannot do. This area is a deceptively small target with big influence on how animated and friendly a face appears. One or two misplaced units can tilt a smile or drop the upper lip. Done well, the change is subtle, the nose looks smoother in photos, and you keep your natural expression.
What bunny lines are, and why they appear
Bunny lines are oblique wrinkles that appear on the upper sides of the nose, usually angling from the nasal bridge toward the inner corner of the eyes. They form when the nasalis muscle contracts. You see them during nose scrunching, squinting, laughing, and sometimes as a compensatory expression in people who have had botox for frown lines or botox for crow's feet. When the orbicularis oculi around the eye has been relaxed with botox crow's feet injections, the face may recruit the nasalis more strongly to express, which can deepen bunny lines over time.
Like all dynamic wrinkles, they start as movement lines. With age, sun exposure, and repetitive motion, the skin’s collagen and elastin thin. What was once a fleeting crease becomes a faint line at rest, then a static groove. Genetics and habits matter. People with allergies who rub or scrunch the nose frequently often notice earlier bunny lines. So do those with very expressive faces who smile with their eyes and nose together.
When Botox makes sense, and when it does not
Botulinum toxin is a muscle relaxer. It is the gold standard for movement-driven lines, hence its success with botox for forehead lines, botox for frown lines, and botox for wrinkles across the crow’s feet. Bunny lines are the same category, provided the lines are mostly dynamic. If I can have you relax your face and the marks fade, botox injections are a good match.
If the lines remain clearly visible at rest, especially if they are deep and feel like little scars in the skin, botox alone may not satisfy you. In those cases we will often combine minimal botox with skin-directed treatments. Laser resurfacing, microneedling with radiofrequency, or a gentle collagen-stimulating plan can smooth etched-in lines. Very rarely, a tiny strand of soft hyaluronic acid filler is used for a scar-like notch, but that requires a conservative hand because the nose area is unforgiving and highly vascular.
How botox works in this area
Botulinum toxin type A blocks the release of acetylcholine at the nerve ending, which in effect quiets the muscle. You still feel normal, but the targeted muscle contracts less intensely. Think of it as turning the volume down, not muting the channel. With bunny lines, the nasalis is the main target. Small, superficial doses placed along the mid to upper sidewall of the nose reduce the scrunching motion that folds the skin.
The effect is not instant. Most people notice a change by day three to five, with full effect at 10 to 14 days. The result lasts about three to four months for the average patient. Some hold on to results for five to six months, especially after several cycles. A few burn through it in two to three months, often due to fast metabolism, intense expression patterns, or high workout frequency.
Anatomy drives dosing and placement
Precision matters on the nose. The nasalis has two key portions. The transverse part compresses the nasal bridge and sidewalls, creating the classic diagonal creases. The alar part flares the nostrils. For cosmetic purposes we almost always treat the transverse fibers, not the alar segment, to avoid changing nasal breathing or nostril flare.
Typical dosing with onabotulinumtoxinA, often known as Botox Cosmetic, is low: 2 to 5 units per side. Many patients do beautifully with 2 units per side for their first session. Heavier scrunchers may need 3 to 4 units per side. Rarely do I exceed 5 units on either side, because diffusion raises the risk of softening the upper lip elevator muscles, which can make the smile look stiff or reduce tooth show. For other brands, dose conversions vary: abobotulinumtoxinA (Dysport) often uses roughly 2.5 to 3 units for each unit of Botox, while incobotulinumtoxinA (Xeomin) and prabotulinumtoxinA-xvfs (Jeuveau) are typically dosed similarly to Botox in most facial areas. These are clinical norms, not hard rules, and experienced injectors titrate to the person in the chair.
I mark with you smiling and scrunching. The injection points usually land in a short line along each side of the nose, at a superficial depth with tiny aliquots. The needle angle is shallow, and the product is placed just into the muscle plane, not deep against bone. If you have asymmetrical movement, we dose asymmetrically so the finish looks balanced.
What your appointment looks like
I prefer short, calm visits rather than marathon sessions for first-timers. You do not need numbing cream. The actual injecting takes two or three minutes. Expect more discussion than pokes.
- Review movement patterns, medical history, and prior botox cosmetic injections. Cleanse the skin, then map where the lines form with expression. Use ice or vibration for comfort. Deliver tiny botox facial wrinkle injections with a 32 to 34 gauge needle, typically two to three micro-deposits per side. Apply gentle pressure for 10 to 20 seconds to minimize pinpoint bleeding. No rubbing or massage. Review aftercare: stay upright, avoid pressing the area, skip strenuous workouts and hot environments for the remainder of the day. Book a follow-up touchpoint at two weeks to review results and tune the plan if needed.
Most people describe the sensation as a sharp pinch that fades quickly. If you tolerate ear piercing, you will handle this. If needles make you nervous, simple grounding techniques help, and we can work at your pace.
Pain, downtime, and recovery time
There is no real downtime with bunny lines botox. You can return to work right away. Common sense precautions help keep the product where you want it. Stay upright for four hours, avoid heavy sweating or hot yoga that evening, delay facials or aggressive skin treatments for 24 to 48 hours, and do not rub the nose bridge or sidewalls. Makeup can go on after a few hours if the skin is intact and calm. Bruising, if it happens, is usually a tiny dot you can cover with concealer.
Results timeline and what to expect
The earliest changes show at three to five days. The full effect appears by the two-week mark. For photo comparisons, day 14 is the best snapshot for botox before and after results. You should see fewer diagonal creases when you smile and scrunch, and the skin at rest should look smoother. Your smile should still look like yours.
Longevity varies. The average is three to four months. Early in your botox treatment journey, you may metabolize it a bit faster. After two or three cycles, some patients space visits to every four or five months. If you also have botox for glabellar lines or botox for forehead wrinkles, stacking all areas on the same day often makes maintenance easier and may reduce compensatory scrunching.
If you are someone whose nose engages strongly when you grin, you may find that treating the crow’s feet and the bunny lines together provides the most natural look. If one zone is still very active, it can overpower the other and look odd on camera.
Safety profile and side effects to weigh
Botox is one of the most studied medications in aesthetic medicine. When done by a qualified injector, botox wrinkle treatment for the nose is safe and predictable. That said, every procedure has trade-offs. In this region, the biggest misstep is overtreatment. Too much toxin or poor placement can soften the levator labii superioris alaeque nasi, a thin muscle that helps lift the upper lip. If that muscle is affected, your smile can look stiff for several weeks, or you might notice less upper tooth show. It resolves as the product wears off, but it is inconvenient if you are planning photos or an event.
Other potential issues include mild headache, tenderness at injection sites for a day, small bruises, or a subtle feeling of heaviness when you try to scrunch. True allergic reactions are rare. Infection is very rare with proper antisepsis. Eyelid droop, a fear many people have after reading about botox side effects, is not a realistic risk when only the nose area is injected correctly. That complication is associated with product migrating near the levator palpebrae superioris in the upper orbit, not the nasal sidewall.
From a medical standpoint, you should postpone botox injection treatment if you have an active skin infection in the area. We avoid treatment in pregnancy and breast-feeding due to limited safety data. People with certain neuromuscular disorders, such as myasthenia gravis, should not receive botulinum toxin.
Who is a strong candidate
- You see diagonal nose lines mostly when you smile, laugh, or squint, and they soften when the face is at rest. You like your expressions and want a subtle smoothing, not a frozen look. You can accommodate maintenance every three to five months, at least for the first year. You are not pregnant, breast-feeding, or dealing with a neuromuscular disorder, and there is no infection near the injection sites. You understand that etched, static lines may need combined therapies beyond botox skin smoothing treatment.
Costs, units, and planning a budget
Pricing varies by city, injector experience, and brand. Many clinics charge by the unit. In the United States, a unit of Botox Cosmetic commonly runs 10 to 20 dollars, sometimes higher in major metro areas. Bunny lines often require 4 to 10 total units. That puts the typical book botox near me cost between 40 and 200 dollars for this area. Some practices bundle areas, so if you are also getting botox for crow’s feet, botox forehead injections, or botox frown line injections, ask how they structure pricing.
If you prefer Jeuveau or Xeomin, the per-unit price is often similar. Dysport uses a different unit scale, so the number of units looks bigger, even though the effect and price can be comparable. What matters is the injector’s comfort with the product and your past responses. If you have a history of strong results with one formulation, stick with what works.
Avoiding common pitfalls
There are two avoidable mistakes I see. The first is chasing bunny lines without addressing nearby muscles. If your crow’s feet are very active and your bunny lines are a compensation pattern, treating the nose alone can make your expression look incomplete. A small cluster of botox anti wrinkle injections at the lateral canthus, or a gentle botox brow lift, may harmonize the upper face.
The second is overtreating static creases with toxin. If the skin is creased at rest, repeated botox cosmetic facial injections will not rebuild collagen. They will protect against further folding, which is useful, but they will not fill a groove. Skin-directed therapies have to share the plan. I have had great results with a conservative fractional laser pass, a series of microneedling sessions, or topical retinoids plus sun protection as a base layer. Patients who pair those with botox skin rejuvenation tend to like their results more over the long haul.
A quick word on pain, needles, and bruising
Most patients rate discomfort as 1 or 2 out of 10. The nose is sensitive, but the dose is tiny and the needle is very fine. Ice helps. Holding your breath increases pain perception, so breathe normally and keep your tongue pressed gently to the roof of your mouth, a small trick that distracts your nervous system. Bruises are the size of a pinhead if they occur at all and usually clear within a week. Plan major headshots or weddings at least two weeks after any botox cosmetic procedure so you are past the adjustment window.
How often botox injections are needed
Plan on every three to four months at first. If you metabolize quickly, you may return at 10 to 12 weeks. If your goal is botox wrinkle prevention as much as wrinkle correction, milder doses at steady intervals tend to look more natural than heavy doses stretched far apart. Over time, many patients find they can extend the interval to four or five months in this small area. Lifestyle affects this. Endurance athletes and people who hit high-heat saunas several times a week often need a slightly tighter schedule.
Integrating bunny lines treatment with a broader plan
Faces move as systems, not as islands. If you already receive botox face injections elsewhere, make sure your injector reviews your whole pattern. Examples:
- Strong frowners sometimes recruit the nose when the glabella is relaxed with botox cosmetic facial injections. A micro-dose to the nasalis can tidy that up. If you have a botox lip flip treatment and then add bunny lines injections, be extra cautious with dose placement near the lip elevators so the two do not stack into a smile that feels flat. Patients using botox masseter treatment for jawline botox or botox for teeth grinding often look slimmer in the lower face. Balancing upper-face expression, including the nose, keeps proportions natural.
These are small adjustments, but they separate work that looks quietly refreshed from work that draws the eye.
Edge cases I see in practice
Allergic rhinitis patients are frequent visitors. Constant nose rubbing and scrunching exaggerate bunny lines. For them, pairing light botox wrinkle relaxing injections with an allergy control plan gives the best results. You cannot out-inject a habit that repeats 50 times a day.
Photographers and TV presenters have a particular request: keep the smile lines soft but do not kill the micro-expressions. Here the dose lives at the lowest end, 1 to 2 units per side, and sometimes I split the second unit at a two-week check if needed. The camera is less forgiving than the mirror. We build the final effect with two light passes.
I have also seen the overcorrection case when a patient arrives after a heavy-handed session elsewhere. The upper lip looks less mobile, and the smile loses a bit of warmth. The fix there is time, not more product. We wait, sometimes do a conservative botox eye wrinkle treatment to bring balance back to the crow’s feet if they are overly strong, and revisit nose dosing at a future visit with a gentler map.
Is botox safe for bunny lines
For the typical healthy adult, yes, this is a safe, minimally invasive wrinkle treatment with a high satisfaction rate when performed by a licensed, experienced injector. The medication has decades of use in cosmetic dermatology and in medical fields, from botox migraine treatment to botox hyperhidrosis treatment. Side effects are generally mild and temporary. The main safety variable is technique. The nose has small but important muscles in tight quarters. Choose someone who treats this area often, uses conservative dosing, and invites you back for a two-week review.
How to choose your injector
Look for training in facial anatomy and a portfolio that shows natural, expressive results. Ask how many times they have treated bunny lines this month, not just botox for anti aging in general. A professional who discusses risks, demonstrates where they plan to inject, and explains why they prefer a certain brand or number of units is more likely to deliver a tailored outcome. If an office pushes a fixed “bunny lines package” without examining your expression, be cautious. Good work is individualized, whether you need botox cosmetic skin treatment around the eyes, botox neck treatment for platysmal bands, or a simple two-point plan on the nose.
What if I already have other injectables or treatments
Botox plays well with others. If you recently had filler elsewhere in the face, such as the cheeks or lips, bunny lines treatment can still proceed, because we are working in a distinct plane and region. If you have active skin treatments planned for the nose or cheeks, space them thoughtfully. A light chemical peel can happen a week later. Energy devices like lasers or radiofrequency should be timed a week or two apart, depending on intensity. Tell your provider about everything you do, including skincare acids and retinoids, so the plan avoids unnecessary irritation or overlap.
A practical day-of checklist
- Come with clean skin, no heavy skincare on the nose that morning. Skip aspirin, fish oil, and alcohol for 24 hours if you are bruise-prone and your doctor agrees with pausing them. Bring reference photos of how your bunny lines look when you smile naturally. Schedule your workout for before your visit, not after. Book a two-week check to fine-tune, especially if this is your first botox facial treatment in this area.
Final thoughts from the chair
Bunny lines are small, but they are part of how you express joy. The goal is never to erase them completely. It is to take the sharp edge off so they do not steal attention or deepen prematurely. With two to five units per side, carefully placed, you can expect smoother photos, less creasing in the mirror, and the same spirited grin that makes you recognizable to friends.
Treating the nose is not about trends or stacking every possible botox aesthetic treatment. It is about understanding how your face moves and nudging one piece so the whole expression reads clean and kind. If you respect the anatomy, use conservative dosing, and pair botox wrinkle reduction with smart skin care, bunny lines become easy to manage. The effect is quiet, which is exactly the point.