Masseter Botox V-Line Jaw Slimming in Myeongdong Seoul
Reduce jaw width and achieve the iconic Korean V-line without surgery. Masseter Botox precisely targets the masseter muscle for gradual, natural-looking jawline slimming. From ₩29,000 at RE:BERRY Myeongdong, steps from Myeongdong Station.
What Is Masseter Botox?
Masseter Botox is a non-surgical injectable treatment that reduces the size of the masseter (jaw) muscle through targeted botulinum toxin injections. By relaxing this powerful chewing muscle, the jawline narrows over 2-4 weeks, creating a slimmer, more V-shaped facial profile. At RE:BERRY Myeongdong, the treatment takes under 15 minutes and costs from ₩29,000 for 50 units.
The masseter muscle is the primary muscle responsible for jaw clenching and chewing. In many individuals — particularly those who habitually grind their teeth (bruxism), chew gum frequently, or have a genetic predisposition — the masseter becomes hypertrophied (enlarged), creating a wide, square-looking jawline. Masseter Botox addresses this by temporarily blocking nerve signals to the muscle, causing it to gradually reduce in size through disuse atrophy. Unlike surgical jaw reduction (mandibular angle reduction or V-line surgery), masseter Botox is completely non-invasive, requires zero downtime, and delivers natural-looking results that develop gradually over several weeks.
Masseter Botox Before & After
Actual patient results from RE:BERRY Myeongdong demonstrating jaw slimming and V-line contouring.
How Masseter Botox Works at RE:BERRY Myeongdong
A precise four-step protocol for safe, effective masseter reduction.
Consultation & Muscle Assessment
Your doctor evaluates the masseter muscle size by asking you to clench your jaw. Muscle thickness, facial asymmetry, and bite pattern are assessed to determine the optimal injection plan.
Injection Point Mapping
The doctor marks 3-5 injection points per side on the masseter muscle. Points are distributed to ensure even relaxation and natural-looking reduction without affecting adjacent muscles.
Precise Botulinum Toxin Injection
Using ultra-fine needles, 25-50 units of botulinum toxin are injected into each masseter muscle. The injections target the lower third of the muscle belly to avoid affecting the zygomatic branch.
Post-Treatment Instructions
No downtime required. Avoid lying flat for 4 hours and do not massage the jaw area for 24 hours. Results begin appearing in 2-4 weeks with maximum effect at 6-8 weeks.
What to Expect from Masseter Botox
- V-Line Without Surgery: Achieve jaw slimming equivalent to surgical contouring through a simple 10-minute injection.
- Dual Benefit: Masseter Botox simultaneously slims the jawline and relieves bruxism, TMJ pain, and tension headaches.
- Zero Downtime: Return to all activities immediately. Ideal for travelers visiting Myeongdong who want quick results.
- Natural-Looking Results: Gradual reduction over weeks mimics natural facial slimming. No one will suspect a procedure.
- Cumulative Effect: Each session produces longer-lasting results as the masseter progressively atrophies with repeated treatment.
- Proven Safety: Botulinum toxin has been used medically since the 1980s with an extensive safety record worldwide.
| Timeline | What to Expect |
|---|---|
| Day 1 | Tiny injection marks fade within hours. No visible change to jawline yet. Avoid rubbing the treated area. |
| Week 1 | Muscle relaxation begins. You may notice slightly reduced jaw clenching strength. No visible slimming yet. |
| Week 2-3 | Early jaw slimming becomes noticeable. The lower face starts appearing softer and less angular. |
| Week 4-6 | Significant jaw reduction visible. The V-line contour becomes clearly defined. |
| Month 2-3 | Peak masseter reduction achieved. Maximum muscle atrophy and jaw slimming effect. |
| Month 4-6 | Results maintained. Muscle activity slowly returns. Plan maintenance session to sustain V-line. |
Masseter Botox vs. Other Facial Slimming Options
| Feature | Masseter Botox | V-Line Surgery | Lipolysis Injection | Thread Lift |
|---|---|---|---|---|
| Target | Masseter Muscle | Mandibular Bone | Submental Fat | Skin & Soft Tissue |
| Mechanism | Muscle Relaxation & Atrophy | Bone Contouring | Fat Cell Dissolution | Mechanical Lift |
| Procedure Time | 10-15 minutes | 3-4 hours | 15-20 minutes | 30-60 minutes |
| Downtime | None | 4-8 weeks | 2-5 days swelling | 3-7 days |
| Pain Level | Minimal (1-2/10) | Significant | Moderate (4-6/10) | Moderate (3-5/10) |
| Results Onset | 2-4 weeks | Visible after swelling (3-6 months) | 4-6 weeks | Immediate |
| Duration | 4-6 months (longer with repeats) | Permanent | Permanent per session | 6-18 months |
| Price at RE:BERRY | From ₩29,000 | N/A (surgical) | From ₩1,150,000 (package) | N/A |
Masseter Botox Pricing at RE:BERRY Myeongdong
All prices exclude VAT. Non-covered medical service. April 2026 promotion pricing.
Masseter Botox 50U
- Premium botulinum toxin 50 units
- Doctor consultation and muscle assessment
- Multi-point injection for even reduction
- Aftercare instructions in 8 languages
Wrinkle Botox Add-On
- 1 area wrinkle treatment (forehead/frown/crow’s feet)
- Combine with masseter Botox for full-face rejuvenation
- Same session, no extra visit needed
Double Chin All-Kill Package
- Goop 10cc fat-dissolving injection
- Inmode Fit Full Face
- Berry Slim 10cc
- Add masseter Botox for ultimate V-line transformation
Meet Our Masseter Botox Specialists
Board-certified aesthetic physicians with extensive experience in injectable facial contouring at RE:BERRY Myeongdong.
Dr. Baek Seung-Jae
- Head Director, RE:BERRY Clinic Myeongdong
- Juvelook Certified Meister & Speaker
- Member, Korean Academy of Aesthetic Medicine
- Member, Korean Filler Education and Research Academy
Dr. Son Hoon-Sung
- Doctor, RE:BERRY Clinic Myeongdong
- Member, Korean Academy of Aesthetic Medicine
- Member, Korean Society for Laser Medicine and Surgery
- Specialist in injectable facial contouring
Medically reviewed by Dr. Baek Seung-Jae, Head Director, Myeongdong Branch, RE:BERRY
The Science Behind Masseter Botox
Evidence-based research supporting botulinum toxin for masseter hypertrophy reduction.
Understanding Masseter Hypertrophy
The masseter is one of the four muscles of mastication and one of the strongest muscles in the human body by weight. Masseter hypertrophy — enlargement of the muscle beyond normal proportions — affects an estimated 10-20% of the population and is more prevalent in East Asian demographics. Causes include habitual bruxism (teeth grinding), excessive gum chewing, TMJ disorders, and genetic predisposition. Clinically, bilateral masseter hypertrophy presents as a widened lower face with prominent mandibular angles.
Botulinum Toxin Mechanism in Masseter Reduction
Botulinum toxin type A (BoNT-A) blocks acetylcholine release at the neuromuscular junction, preventing muscle contraction. When injected into the masseter, it induces dose-dependent muscle relaxation followed by disuse atrophy. Ultrasonographic studies by Lee et al. (2019) demonstrated a mean reduction in masseter thickness of 31.4% at 12 weeks post-injection with 25 units per side. The reduction in muscle cross-sectional area directly correlates with visible jaw narrowing.
Long-Term Efficacy and Cumulative Effects
A systematic review by Fedorowicz et al. (2013) confirmed that repeated BoNT-A injections produce cumulative and progressively longer-lasting masseter reduction. After 3 or more treatment cycles, many patients report interval extensions from 4-6 months to 8-12 months between sessions. This is attributed to sustained muscle atrophy from repeated denervation cycles, effectively retraining the muscle to a smaller resting volume.
References: Carruthers A, Carruthers J. Dermatol Surg. 2004;30(2):S12-S17. doi:10.1111/j.1524-4725.2004.30002.x | Klein AW. J Am Acad Dermatol. 2004;51(1):S21-S28. doi:10.1016/j.jaad.2004.01.018
What Our Patients Say About Masseter Botox
“I have been getting masseter Botox at RE:BERRY for a year now. The difference from my first visit is remarkable — my face has gone from square to oval. Dr. Son is incredibly precise.”
“Came to Myeongdong for shopping and got masseter Botox on a whim. The price was unbelievable compared to my country. Results were visible within 3 weeks.”
“I also had chronic jaw clenching and headaches. The masseter Botox solved both the aesthetic and the medical issue. Double benefit.”
Frequently Asked Questions About Masseter Botox
Expert answers about masseter Botox treatment at RE:BERRY Myeongdong Seoul.
RE:BERRY Myeongdong offers masseter Botox 50U at ₩29,000 per side. All prices exclude VAT. This is our April 2026 promotion price.
They are the same treatment. Jaw Botox is the common name; masseter Botox is the anatomically precise term. Both refer to botulinum toxin injection into the masseter muscle for jawline slimming.
Standard dosing is 25-50 units per side. RE:BERRY’s package includes 50 units, suitable for moderate to significant masseter hypertrophy. Your doctor will assess and recommend the optimal dose.
Yes, gradually. The jawline narrows as the masseter muscle reduces in size over 2-6 weeks. The result is a slimmer, V-shaped lower face that looks naturally proportioned.
Minimally. Most patients rate the discomfort as 1-2 out of 10. Ultra-fine needles are used, and each injection takes less than a second. The entire procedure is done in 5-10 minutes.
Yes. You can eat immediately after the procedure. For the first 1-2 weeks, you may notice slightly reduced bite force with very hard or chewy foods, but normal eating is unaffected.
Muscle relaxation starts within 3-5 days. Visible jaw slimming begins at 2-3 weeks. Peak results appear at 6-8 weeks when maximum muscle atrophy is achieved.
Yes. Masseter Botox is one of the most effective treatments for bruxism (teeth grinding) and TMJ-related jaw tension. It reduces nighttime clenching force by 60-80%.
Initially every 4-6 months. With each session, results last progressively longer. After 3-4 treatments, many patients extend to 8-12 month intervals.
Absolutely. Popular combinations include masseter Botox with chin filler for lower face contouring, or with nose filler for overall facial harmony.
Yes. Botulinum toxin has over 30 years of global clinical use. When administered by trained physicians like Dr. Baek (license 143338) and Dr. Son (license 125783), the safety profile is excellent.
The masseter muscle gradually returns to its original size over several months. However, after multiple treatments, the muscle may remain partially reduced for an extended period.
This is a common misconception. When properly dosed and injected by an experienced physician, masseter Botox does not cause facial sagging. The treatment targets only the masseter muscle, not the skin or surrounding tissues.
Extremely popular. South Korea is the world leader in per-capita Botox usage, and masseter Botox is one of the most requested aesthetic procedures, especially among those seeking the Korean V-line look.
Yes. RE:BERRY Myeongdong is located 2 minutes from Myeongdong Station, the heart of Seoul’s tourist district. We offer 8-language support. Same-day treatment is available after consultation.
A 2-4 week follow-up is recommended to assess results and determine if a touch-up is needed. This can be done remotely via WhatsApp (+82-2-776-2822) with photos if you have returned home.
Contact RE:BERRY Myeongdong via WhatsApp at +82-2-776-2822 for appointments and inquiries in your language.
Masseter Botox targets muscle bulk, while liposuction removes fat. They address different causes of facial width. For most patients with a muscular jawline, Botox alone is sufficient. For fat-related fullness, the Double Chin All-Kill Package may be more appropriate.
No. When injected correctly into the masseter muscle body, Botox does not affect the muscles that control smiling (zygomaticus major/minor). Your smile will remain completely natural.
Yes. Masseter Botox is popular among men for both aesthetic jaw slimming and functional relief from bruxism or TMJ pain. Dosing may be adjusted for larger male masseter muscles.
RE:BERRY Myeongdong uses KFDA-approved botulinum toxin products. The specific brand is discussed during your consultation based on your treatment goals and medical history.
None. You can return to all activities immediately — eating, talking, applying makeup, and exercising. This makes it perfect for tourists who do not want any recovery time.
Different goals. Masseter Botox slims the jaw by reducing muscle mass. Ultherapy lifts and tightens skin. They can be combined for simultaneous slimming and lifting.
Yes. If the doctor determines you are a suitable candidate during consultation, treatment can be performed immediately. The entire visit typically takes 20-30 minutes.
Side effects are rare and typically mild: minor bruising at injection sites (resolves in 1-3 days), temporary jaw tightness, or mild headache. Serious complications are extremely rare when performed by experienced physicians.
Only Authentic, Brand-Certified Equipment
Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
Ready for a Slimmer, V-Line Jawline?
Book your masseter Botox consultation at RE:BERRY Myeongdong — 2 minutes from Myeongdong Station. Same-day treatment available.
Book Your Masseter Botox Consultation
Fill out the form and our multilingual team will confirm within 2 hours via your preferred contact method.
- ✓ Free consultation with Head Director
- ✓ 8-language support (EN, JA, ZH, TH, VI, MN, FA)
- ✓ 2 min from Myeongdong Station (Line 4)
- ✓ No downtime — resume sightseeing immediately
- ✓ Visa / Mastercard accepted
- ✓ Current promotion pricing available