Jaw slimming · Myeongdong, Seoul
Masseter Botox in Myeongdong & Euljiro, Seoul
Slim a square jaw and ease teeth clenching with Botox in the masseter muscle — a classic Korean V-line treatment.
- Same price as locals
- English-speaking team
- Book on WhatsApp
- 中文 · 日本語
Quick answer
How does masseter Botox slim the face?
Botox injected into the masseter (chewing) muscle relaxes it, so over several weeks the muscle becomes less bulky and the lower face looks slimmer and softer.
It also helps with clenching and grinding. Slimming appears over 4–8 weeks and usually lasts about 4–6 months; repeated sessions can extend results.
Medically reviewed by Dr. Yoon Jong-woo, Medical Director, Umi Clinic · Updated October 2026 · Results vary; the doctor explains risks and side effects at consultation.
- Session
- About 10 minutes
- Downtime
- None
- Results
- Slimming over 4–8 weeks
- Lasts
- About 4–6 months
- Pricing
- Same price as locals
- Booking
- WhatsApp +82-10-5177-0188
FAQ
Masseter Botox questions
Will chewing feel different?
Chewing tough foods may feel slightly weaker for a few weeks; normal eating is not affected.
Is it suitable if my jaw is wide from bone?
Botox only slims muscle. The doctor checks whether your width is muscle, fat or bone and may suggest other options.
Can I combine it with HIFU?
Yes, many patients pair it with lifting such as Shurink or Ultherapy.
Same price for foreigners?
Yes.
Related at Umi Clinic
Often combined with Masseter Botox
💉 What Masseter Botox Is
Masseter Botox is a type of botulinum toxin injection into the
masseter muscles — the large chewing muscles at the back of the jaw.
The goal is to
relax these muscles, which can help with:
- Facial slimming (softening a wide jawline)
- Reducing jaw tension or clenching
- Improving bite discomfort from grinding
It’s a non-surgical option that targets muscle activity, not bone.
🧠 How It Works
The masseter muscles are what you use when you chew or clench your teeth.
When they are strong or overused, they can make the jawline look
square or bulky.
Botox temporarily reduces muscle activity, so:
- The muscles don’t work as hard
- They gradually shrink in size over time
- The lower face looks softer and less angular
👤 Who It’s Good For
You might consider masseter Botox if you:
✔ Have a
wide or square jaw you want to soften
✔ Clench or grind your teeth at night
✔ Want a
non-surgical face-slimming option
✔ Are looking for relief from jaw tension
It’s popular among people wanting a more oval or tapered lower face.
🔍 What Happens During Treatment
1. Consultation
A specialist assesses your jaw muscle size and discusses your goals.
2. Injection
Botox is injected into specific points on each masseter muscle.
3. Procedure Time
The whole process usually takes 10–20 minutes.
4. Comfort
Most people feel only light pinches — numbing cream is optional.
⏱ When Results Appear
- First effects: ~1–2 weeks
- Noticeable slimming: ~4–8 weeks
- Duration: ~3–5 months
Maintenance sessions are needed to sustain results.
🧘♀️ Aftercare Tips
✔ Avoid touching or massaging the area for several hours
✔ Keep upright (don’t lie down) for a few hours
✔ Avoid heavy exercise on the same day
✔ Follow any aftercare instructions you’re given
These steps help the Botox settle into the muscle properly.
⚠️ Possible Temporary Side Effects
Most are mild and short-lived:
🔹 Slight swelling
🔹 Tenderness
🔹 Minor bruising
🔹 Mild chewing weakness at first
These normally ease within a few days.
📈 What It Feels Like
- You may notice a softer bite or less jaw fullness.
- Chewing strength may feel slightly reduced for a short time — this is usually normal and temporary.
👍 Tips for Good Results
✨ Choose a clinician experienced with
facial proportions
✨ Discuss your ideal shape clearly
✨ Start with a
balanced dose (not too much at once)
✨ Plan follow-ups to maintain results
📋 Quick Summary
Masseter Botox in Seoul is a popular, non-surgical option to soften a wide jawline and reduce jaw tension. It works by relaxing the chewing muscles, takes only minutes, and has minimal downtime. Results build over weeks and typically last a few months with ongoing treatments.
