Dermatology ClinicBotox for Square Jaw in Busan, Korea Relax a bulky masseter muscle for a softer, slimmer lower face, with no surgery
Square-jaw Botox at JRYN Seomyeon starts from ₩15,000 with Korean toxin. Your doctor checks how much of your jaw width is muscle before planning the dose.
Does Botox really slim a square jaw?
Yes, when the width comes from a large masseter (chewing) muscle. Botox injected into the masseter relaxes it, and over the following weeks the muscle becomes smaller, so the angle of the jaw looks softer and the lower face narrower. It does not change bone or remove fat, so a wide jaw caused by bone shape or jowls responds less.
At JRYN Seomyeon, square-jaw Botox is ₩15,000 (Korean, Newlux), ₩35,000 (Coretox), ₩90,000 (Dysport) or ₩139,000 (Allergan 50U). Your doctor confirms the product and dose before treatment.
Botox for Square Jaw at a glance
| What it treats | Wide or square jaw from enlarged masseter muscles; jaw clenching and muscle tension may also ease |
|---|---|
| How it works | Botulinum toxin relaxes the masseter, which gradually reduces muscle bulk |
| Downtime | Minimal. Small injection marks usually fade within hours. |
| When you see results | Chewing feels slightly weaker within days; visible slimming builds over about 2–6 weeks |
| How long it lasts | Often several months. Repeat treatments can help maintain the slimmer shape. |
| Price at JRYN | ₩15,000 Korean · ₩35,000 Coretox · ₩90,000 Dysport · ₩139,000 Allergan 50U |
| Often combined with | Chin filler, Jawline filler, Skin Botox |
| Good for short trips? | Yes. Treatment is quick and results develop after you fly home. |
Is your wide jaw muscle, fat or bone ?
Botox only shrinks muscle. Your doctor checks the cause first, because each one needs a different approach.
| Cause of width | How it feels | Usual approach |
|---|---|---|
| Large masseter muscle | Hard bulge at the jaw angle when you clench | Square-jaw Botox |
| Soft tissue or jowls | Soft fullness along the jawline | Jawline lifting or fat-dissolving injections |
| Short or receding chin | Face looks wide because the chin is small | Chin filler to balance proportions |
| Bone structure | Width stays when the muscle is relaxed | Injections help little; discuss realistic goals with your doctor |
Who it suits
- Your jaw angle bulges when you clench your teeth
- You want a slimmer, softer lower face without surgery
- You clench or grind your teeth (your doctor will assess this)
- You want a quick treatment with little downtime
- You are happy with gradual change over weeks
Your doctor may suggest another option if…
- Your jaw width comes mainly from bone or fat
- You have marked sagging or jowls (lifting may suit better)
- You are pregnant or breastfeeding
- You have a neuromuscular condition. Tell your doctor.
- You have an infection at the injection site
Your Botox for Square Jaw visit , step by step
The injections take only a few minutes. Avoid massaging the jaw, saunas and hard exercise for the rest of the day.
1:1 doctor consultation
In English. Your doctor feels the masseter while you clench and checks face shape.
Product & dose
You choose the toxin brand; your doctor sets the units per side and confirms the price.
Injection
A few small injections into each masseter with a fine needle.
Gradual slimming
The muscle relaxes and shrinks over the following weeks.
Square-jaw Botox prices at JRYN
The most affordable option for jaw slimming.
Ask about this optionImported toxin, for those who prefer the original brand.
Ask about this optionListed clinic prices in Korean won. Your doctor confirms the dose, product and final total, including VAT, before treatment.
Reviewed by a JRYN doctor
Dr. Yoon Jung-wook
Managing Director, JRYN Clinic Seomyeon · Injectables & facial contouring
- Full Member, Korean Society of Aesthetic Plastic Surgery
- Full Member, Korean Society for Aesthetic Plastic Surgery & Laser Medicine
- Full Member, Korean Society of Obesity & Body Contouring
- Former Neurosurgery Resident, Dong-A University Hospital
This page is general information about Botox for Square Jaw and does not replace an in-person consultation. Results vary between people; suitability, dose and expected results are decided by a doctor after examining you.
Botox for Square Jaw FAQ
Still have questions? Message us on WhatsApp and we will answer in English.
How much is square-jaw Botox in Busan?
At JRYN Seomyeon, square-jaw Botox is ₩15,000 with Korean toxin (Newlux), ₩35,000 with Coretox, ₩90,000 with Dysport and ₩139,000 with Allergan 50U.
Your doctor confirms the product and dose before treatment, so you know the total first.
How long until I see my jaw slimmer?
Most people notice chewing feels weaker within a few days, and visible slimming builds over about 2 to 6 weeks as the muscle shrinks.
Book at least a month before an event if you want the full effect.
How long does jaw Botox last?
Results often last several months, depending on muscle strength, dose, product and how much you chew or clench.
Many people repeat it when the muscle starts to return. Regular treatment can help keep the jaw slimmer.
Will it change my smile or make chewing hard?
Your smile is controlled by different muscles, so it should not change when the dose is placed correctly. Chewing tough food can feel tired for a few weeks.
Your doctor places the injections to avoid nearby smile muscles.
Which brand should I choose?
All the listed brands relax the muscle; they differ in price, formulation and personal preference. Korean toxin is the lowest-cost choice, while Allergan is the original imported brand.
At JRYN the range runs from ₩15,000 to ₩139,000, and your doctor can explain the differences.
Can Botox help teeth grinding or clenching?
Relaxing the masseter can ease clenching and jaw tension in many people. It does not replace dental assessment for grinding.
Tell your doctor about any jaw pain or dental issues at consultation.
Can I have jaw Botox on a short trip?
Yes. The injection takes minutes, downtime is minimal and the slimming develops after you return home.
Message JRYN on WhatsApp with your dates to book.
Easy to find, easy to book.
Opening hours
| Mon · Tue · Fri | 10:30 – 20:00 |
| Wed · Thu | 10:30 – 19:00 |
| Saturday | 10:30 – 14:30 |
| Lunch (weekdays) | 13:00 – 14:30 |
| Sun & holidays | Closed |
Location
4F Samjung Tower, 672 Jungang-daero, Busanjin-gu, Busan
8 min walk from Seomyeon Station (Line 1 & 2) Exit 2, or 3 min from Seomyeon Mall Exit 16. In-building parking, first 30 minutes free.
Consult in English
Send your concern, photos and travel dates. We reply with suitable options and the price before you book.
