Botulinum toxin · Bunny lines
Bunny lines botulinum toxin
Bunny lines are the small diagonal lines that appear on the sides of the nose when you laugh or scrunch it. The nasal muscle contracts and the skin folds.

Botulinum toxin relaxes that muscle and the lines soften. It is a small area and the dose is low. People who already treat their frown lines tend to notice these afterwards, because they become the only line left.
A 15-minute session, €120. Done on its own or in the same session as the frown lines.
What changes with bunny lines treatment
A low dose of botulinum toxin in the small muscle on each side of the nose. The diagonal lines that appear when you laugh or scrunch your nose soften. Small area, small dose.
Is it for you?
People who see the lines when they laugh, and often people who already treat their frown lines and forehead, because the nose lines become the only ones left.
What happens in the session
Two injection points, one on each side of the nose, marked carefully away from the upper lip. No anaesthetic. Fifteen minutes, then back to your day.
What you'll see, and when
First signs at 3 days, complete by day 14. It lasts 3 to 4 months.
After the treatment
Nothing to recover from. Avoid rubbing the area for the first hours. A small bruise at an injection point can happen and passes in days.
Why it looks natural
In an area this small, the injection points matter more than the dose. Placed well, one on each side of the nose and marked carefully away from the upper lip, the smile and the shape of the nose stay exactly as they were. The dose is low because the muscle is small; more would only spread where it should not.
Honest answers
Will it show? First signs at 3 days, complete by day 14. A small bruise at an injection point can happen and passes in days.
Does it hurt? Two quick injections with no anaesthetic. Brief pinpricks, then back to your day.
What if I don't like it? The toxin cannot be dissolved; it wears off on its own in 3 to 4 months. The low dose is deliberate, for exactly this reason.
How we do it at Cosmo Clinic
The points matter more than the dose here: placed well, the smile and the shape of the nose stay exactly as they were. It is often done in the same session as the frown lines, so the two areas read as one. €120. The assessment consultation is free.
Options and prices
| Treatment | Price |
|---|---|
| Botulinum toxin — special area (gummy smile, bunny lines, nose tip, chin) | 120 € |
| Botulinum toxin — 1 area (frown lines or crow's feet) | 150 € |
| Botulinum toxin — forehead | 189 € |
| Botulinum toxin — 2 areas | 249 € |
| Botulinum toxin — 3 areas | 320 € |
| Botulinum toxin — masseter | 305 € |
| Botulinum toxin — hyperhidrosis (underarms/hands) | 450 € |
| Lip flip | 99 € |
The plan and the final figure are confirmed at the assessment consultation, at no cost.
At a glance
What to expect
Results
- The lines on the sides of the nose softened when you laugh.
- A smoother mid-face.
- First signs at 3 days, full result at 14.
- Lasts 3 to 4 months.
Key features
- Two injection points, 15 minutes.
- Same-day return.
- Pairs with the frown lines in the same session.
- €120, price per treatment.
Frequently asked questions
Short answers to the questions we hear every day. Everything else belongs in the consultation.
What are bunny lines?
The diagonal lines on the sides of the nose, near the eyes, that appear when you laugh or wrinkle your nose. The name comes from a rabbit twitching its nose.
What are the risks?
A small bruise at an injection point, gone in days. A badly placed dose can affect the upper lip for a few weeks; the points are marked carefully, away from the lip.
How long does it last?
Between 3 and 4 months.
Can I combine it with other treatments?
Yes, especially the frown lines: the two areas work together and treating them together gives a more coherent result.
Does it hurt?
Two quick injections. We do not use anaesthetic.
When do I see the result?
You see it start at 3 days; the day-14 result is the complete one.
Will it change my nose when I smile?
It only stops the sides from wrinkling. The shape of the nose and the smile stay the same.
Who tends to notice bunny lines?
People who already treat the frown lines and forehead: with the rest smooth, the nose lines become the ones you see. And people who laugh with their nose.
Similar treatments
Botulinum toxin · ChinChin botulinum toxin
Smooths the orange-peel texture of the chin when you talk or smile.
Botulinum toxin · Crow's feetBotulinum toxin for crow's feet
Softens the lines beside the eyes without taking the smile.
Botulinum toxin · ForeheadForehead botulinum toxin
Softens the horizontal forehead lines. Visible in 3 to 14 days.
Related articles
To read before you decide, in your own time.
Botulinum toxin
Botulinum toxinHow long does botulinum toxin last? Three to six months, depending on you
It is the question everyone asks before a first treatment. The answer has numbers by area, a day-by-day calendar, and three or four things that make the effect last longer or shorter in your case.
Botulinum toxin
Botulinum toxinBotulinum toxin aftercare: the first 24 hours
Almost every question comes after the treatment. Can you go to the gym? Lie down? Have a glass of wine at dinner? Wash your face? The answers, with the reason behind each one.
Clinical guide
Clinical guideBotulinum toxin: what can go wrong, and what cannot
Anyone considering botulinum toxin deserves numbers, not alarm and not reassurance. The common effects and how long they last, the rare complications and how they happen, who should not have it, and what changes with who injects.
Book a consultation
Start with a conversation.
Leave your name and number. We call or reply on WhatsApp, in English or Portuguese.
- Assessment consultation free of charge
- Prices published for every treatment
- No commitment