Botulinum toxin
An injection of botulinum toxin temporarily blocks a chemical messenger released at nerve endings. It is used for expression lines and a square jaw, where it makes the muscles move less, and for underarm sweating, where it reduces the signal to the sweat glands.
Depth: muscle This is a model, so layer thickness is not to scale.
How it works
01What it uses
Botulinum toxin
A protein that temporarily stops nerve endings from releasing acetylcholine, the chemical messenger that signals muscles and sweat glands.
02Which layer
Muscle (for sweating, sweat glands in the dermis)
For lines and a square jaw, it goes into the muscles of expression and the chewing muscles. For underarm sweating, it goes into the dermis, where the sweat glands are.
03How it works
Less movement, for a while
When a muscle moves less, the expression lines above it soften, and a chewing muscle can shrink over several weeks. Underarms sweat less. As the nerves recover, the effect fades.
Concerns and how it works
If this sounds like you
- The lines around my eyes get deep when I smile
- Frown lines stay between my brows
- My jaw muscles stand out
Expression lines on the forehead, between the brows, and around the eyes come from moving the same muscles again and again. Botulinum toxin temporarily blocks the signal from nerve endings to those muscles, so they move less. Changes start to show after 3–7 days, and the effect usually fades after 3–4 months, when it can be repeated.
Treatment details
Sessions, downtime, and side effects
- Usual sessions
- 1 session; effects usually last 3–4 months
- Interval
- When the effect wears off
- Treatment time
- About 10 min
- Numbing
- Ice or numbing cream
- Downtime
- Needle marks for a few hours; about 1 week if a bruise forms
What it is for
Lines on the forehead, between the brows, and around the eyes; a square jaw; underarm sweating. How much your skin changes, and how quickly, varies from person to person.
Side effects
Bruising, swelling, headache, and, rarely, a drooping eyelid or asymmetry can occur. Changes begin to show after 3–7 days and vary from person to person.
Is it right for you
When it suits you,and when it may not
- Good for: You have expression lines on your forehead, between your brows, or around your eyes
- Good for: Your jaw muscles make your jawline look square
- Good for: Heavy underarm sweating bothers you
- Good for: You understand that it needs to be repeated every 3–4 months
- May not suit: Pregnancy or breastfeeding
- May not suit: A neuromuscular condition that weakens the muscles, such as myasthenia gravis
- May not suit: Inflammation or infection in the treatment area
- May not suit: A past allergic reaction to the same ingredient
Before and after
From before your visit back to daily life
- BeforeExamination, plan, and price
- Day of treatmentAbout 10 min · ice or numbing cream · do not lie down for 4 hours
- After 1 dayOK again: saunas and hot baths; strenuous exercise
- Around 7 daysUsually healed by now (varies by person)
Before treatment
- Tell us if you take medicines or supplements that thin the blood. Do not stop a prescribed medicine on your own.
- If you have had an injection in the past 3–4 months, tell us the date and area.
- Changes start to show after 3–7 days, and a bruise, if one forms, lasts about 1 week. If you have an important event, we plan the date around it.
- Come with makeup removed from the treatment area.
After treatment
- Stay upright for 4 hours, and do not rub the treated area.
- Avoid strenuous exercise and saunas on the day of treatment.
- If an eyelid droops or the two sides look different, contact us.
- After a jaw treatment, chewing hard foods may feel a little weaker for a few weeks.
Price
The final price, VAT included
This is a self-pay fee. There are no discounts or promotional prices, and we go over each item and its price again before treatment.
- One area: forehead, frown lines, or crow’s feet (Korean-made product)₩33,000
- The same one area (imported product)₩88,000
- Square jaw, both sides (Korean-made product)₩66,000
- Underarm sweating, both sides (Korean-made product)₩220,000
Self-pay · final price, VAT included · as of Nov 2, 2026
SuppliesNone
MedicationIncluded: botulinum toxin product
The price depends on the product (Korean-made or imported) and the area. You can check the product name on our Fees page and at your consultation.
Common questions
What people often ask about botulinum toxin
How much pain should I expect?
A fine needle is used at a few points, and how much it stings differs for each person. We ease it with ice or numbing cream, and the treatment takes about 10 minutes.
How long will it take me to recover?
Needle marks usually fade within a few hours. A bruise, if one forms, lasts about 1 week, and a brief headache can occur.
How many sessions will I need?
One injection, and the effect usually lasts 3–4 months. When it fades, you can have it again. Injections that are too frequent or too large are known to sometimes cause resistance, in which the effect weakens, so we space treatments out and use only the amount needed.
Can I combine it with other treatments?
For a square jaw, it can be added to the Danjeong Line program. Whether to have it on the same day as lifting or filler depends on the areas and the order.
Keep exploring
Other treatments in the same layer
Skin conditions in a nearby layer (covered by National Health Insurance): hair loss. Being in a nearby layer does not make this a treatment for that condition.