
Masseter Botox in Myeongdong Seoul
RE:BERRY Myeongdong delivers precision masseter botox injections using Korean premium botulinum toxin to slim square jawlines into a natural V-line contour. Our Aesthetic Medicine Specialists perform 30,000+ treatments annually, mapping 3-5 injection points per side for even, symmetrical jawline reduction. Masseter botox in Myeongdong achieves visible slimming within 2-4 weeks at our 365-day clinic with 8-language support, just 2 minutes from Myeongdong Station Exit 8.
How Does Masseter Botox Work for Jawline Slimming in Myeongdong?
Masseter botox at RE:BERRY Myeongdong injects 25-50 units of Korean premium botulinum toxin into each masseter muscle, relaxing hypertrophic jaw muscles to achieve a slimmer V-line within 2-4 weeks, with peak results at 6-8 weeks and effects lasting 4-6 months.
Masseter botox in Myeongdong Seoul has become the most requested non-surgical facial contouring procedure among international visitors seeking the Korean V-line aesthetic. At RE:BERRY Myeongdong, masseter botox works by injecting botulinum toxin Type A directly into the masseter — the thick chewing muscle on each side of the jaw that creates a square or wide appearance when hypertrophied. Head Director Seung-Jae Baek uses a multi-point injection technique with 3-5 precisely mapped points per side to ensure even muscle relaxation without affecting chewing function. Over 2-4 weeks the masseter muscle gradually atrophies from reduced neural stimulation, producing a visibly slimmer and more tapered jawline. Masseter botox at RE:BERRY Myeongdong is frequently combined with jawline slimming treatments including chin filler for enhanced V-line definition, or with the Double Chin All-Kill Package for patients who want comprehensive lower face contouring. The procedure takes only 10-15 minutes, requires zero downtime, and is performed by Aesthetic Medicine Specialists who understand the precise anatomy needed to avoid complications like asymmetry or excessive weakness.
Masseter Botox Before and After at RE:BERRY Myeongdong
Actual patient results from RE:BERRY Myeongdong. Individual outcomes vary depending on masseter muscle size and dosage.
How Masseter Botox Treatment Works at RE:BERRY Myeongdong
A precise 4-step protocol for safe, symmetrical jawline slimming using Korean premium botulinum toxin.

Masseter Assessment & Injection Planning
Dr. Seung-Jae Baek palpates both masseter muscles while you clench your jaw to assess muscle thickness, symmetry, and bulk distribution. Asymmetry between left and right sides is measured — approximately 40% of patients have uneven masseter hypertrophy requiring different unit counts per side. The injection map is drawn directly on the skin with 3-5 points per side, positioned in the lower two-thirds of the masseter to avoid affecting the zygomatic arch muscles that control smiling. This masseter botox consultation takes 10-15 minutes and is available in 8 languages at RE:BERRY Myeongdong.

Precision Multi-Point Injection
Korean premium botulinum toxin is injected at 3-5 mapped points per masseter using a 30-gauge needle. The standard dosage is 25-50 units per side depending on muscle mass — larger masseter muscles in male patients may require up to 50 units per side for optimal slimming. Each injection takes 2-3 seconds. The multi-point technique distributes the toxin evenly throughout the muscle belly rather than concentrating it in a single spot, which prevents the uneven atrophy and lumpy appearance that can result from single-point injection. Total injection time for masseter botox at RE:BERRY Myeongdong is under 5 minutes. Patients seeking maximum jawline definition often add thread lifting for additional skin tightening.

Immediate Post-Injection Check
Gentle pressure is applied to each injection site for 10 seconds to prevent bruising. Ice packs are available but rarely needed. Dr. Baek checks bilateral symmetry by having you clench your jaw again and confirms even distribution. You will be advised not to massage or apply pressure to the jaw area for 4 hours, avoid lying flat for 2 hours, and skip intense exercise for 24 hours. These precautions prevent the botulinum toxin from migrating outside the masseter muscle to adjacent muscles.

Follow-Up & Maintenance Planning
A 2-week follow-up is recommended to assess initial response. At this point, 80% of patients notice reduced jaw tension when clenching. Visible slimming appears at weeks 3-4 and peaks at 6-8 weeks. If asymmetry is detected at follow-up, a complimentary touch-up of 5-10 units can be added to the weaker side. For sustained masseter botox results, RE:BERRY Myeongdong recommends repeat treatments every 4-6 months, with most patients needing fewer units in subsequent sessions as the muscle progressively atrophies over time. Many patients also explore Sofwave lifting or Onda lifting at subsequent visits for enhanced jawline definition.
What to Expect from Masseter Botox at RE:BERRY Myeongdong
- Non-Surgical V-Line Contouring: Achieve the Korean V-line jawline without surgery, bone shaving, or general anesthesia. Masseter botox slims the jaw naturally over 2-4 weeks as an alternative to surgical botox procedures in Korea.
- Zero Downtime: Return to shopping in Myeongdong immediately after treatment. No swelling, no bandages, no recovery period required.
- Teeth Grinding Relief: 85% of bruxism patients report reduced nighttime clenching and jaw pain within 1-2 weeks of masseter botox treatment.
- Cumulative Slimming Effect: Each repeated treatment produces longer-lasting results. After 3 consecutive sessions, 70% of patients maintain their V-line for 8-12 months.
- Reversible & Safe: Effects gradually wear off in 4-6 months if you choose not to maintain. No permanent structural changes to the jaw. Learn more about botox treatments at RE:BERRY Myeongdong.
| Timeline | What to Expect |
|---|---|
| Day 1-3 | No visible change. Minor soreness at injection sites resolves within 24 hours. Normal chewing unaffected. |
| Week 1-2 | Masseter muscle begins relaxing. Jaw feels less tight when clenching. Bruxism patients notice less grinding. |
| Week 3-4 | Visible narrowing of the lower jaw begins. Face appears softer from frontal and three-quarter angles. |
| Week 6-8 | Peak masseter botox results. Maximum V-line definition achieved. Jawline appears 15-25% narrower. |
| Month 3-4 | Results remain stable. Ideal time to consider combination treatments like chin filler for enhanced V-line. |
| Month 5-6 | Gradual return of muscle tone. Schedule maintenance masseter botox at RE:BERRY Myeongdong for sustained results. |
Masseter Botox vs Other Jawline Slimming Methods
| Feature | RE:BERRY Masseter Botox | Jaw Reduction Surgery | Face Liposuction | Thread Lift |
|---|---|---|---|---|
| Procedure Time | 10-15 minutes | 3-5 hours | 1-2 hours | 30-60 minutes |
| Anesthesia | None (topical optional) | General anesthesia | Local/sedation | Local anesthesia |
| Downtime | Zero | 2-4 weeks swelling | 1-2 weeks | 3-7 days |
| Results Onset | 2-4 weeks | 3-6 months (swelling) | 2-4 weeks | Immediate |
| Duration | 4-6 months | Permanent | 2-5 years | 12-18 months |
| Reversibility | Fully reversible | Irreversible | Partially reversible | Semi-permanent |
| Risk Level | Minimal | High (nerve damage) | Moderate | Low-moderate |
| Ideal For | Muscle-based jaw width | Bone structure | Fat deposits | Mild sagging |
Masseter Botox Pricing at RE:BERRY Myeongdong
All prices in KRW. Non-covered medical service. April 2026 promotion pricing.
Masseter Botox Consultation
- Masseter muscle assessment
- Multi-point injection mapping
- Korean premium botulinum toxin
- 2-week follow-up check
- 8-language consultation
Double Chin All-Kill Package
- Goop fat dissolving 10cc
- Inmode Fit full face
- Berry Slim 10cc
- Comprehensive jaw + chin slimming
- Ideal to combine with masseter botox
V-Line Forma + Shurink Package
- Inmode Forma full face
- Inmode FX 1 area
- Shurink 300 shots
- Enhanced jawline definition
Juvederm Lip Filler + Botox Combo
- Juvederm lip filler 1cc
- Korean Premium Mouth Corner Lip Botox
- Pairs well with masseter botox
Meet Your Doctor

Dr. Seung-Jae Baek
- Head Director, RE:BERRY Clinic Myeongdong
- Aesthetic Medicine Specialist
- Juvelook Meister Certified
- License No. 143338
Medically reviewed by Dr. Seung-Jae Baek, Head Director / Aesthetic Medicine Specialist, RE:BERRY
The Science Behind Masseter Botox for Jawline Slimming
Peer-reviewed evidence supporting botulinum toxin Type A for masseter muscle reduction and facial contouring.
Botulinum Toxin for Masseter Hypertrophy Reduction
Masseter botox works through selective chemodenervation of the masseter muscle. Botulinum toxin Type A blocks acetylcholine release at the neuromuscular junction, preventing the nerve signal that triggers muscle contraction. Without regular contraction stimulus, the masseter muscle undergoes disuse atrophy — a gradual reduction in muscle fiber volume that produces the visible jaw-slimming effect. Clinical studies demonstrate that a single injection of 25 units per side produces measurable reduction in masseter muscle thickness of 15-30% by 12 weeks, with corresponding facial width reduction of 4-8mm when measured by ultrasonography.
Kim NH et al. Reduction of masseter muscle volume with botulinum toxin type A injection: evaluation using computed tomography. Aesthetic Plast Surg. 2003;27(4):283-287. doi:10.1007/s00266-003-3065-4
Optimal Dosing and Injection Technique
Research on masseter botox injection protocols shows that multi-point injection (3-5 points per side) distributed across the masseter muscle belly produces more uniform atrophy and greater patient satisfaction compared to single-point or two-point techniques. The optimal dosage range is 25-50 units of onabotulinumtoxinA per side, with higher doses indicated for patients with significant masseter hypertrophy (muscle thickness greater than 13mm on ultrasound). Studies consistently show that repeat treatments at 4-6 month intervals produce cumulative thinning, with patients requiring 10-20% fewer units by the third session due to progressive muscle atrophy.
To EW et al. A prospective study of the effect of botulinum toxin A on the lower facial width measured by ultrasonography. Br J Clin Pharmacol. 2001;52(6):671-675. doi:10.1046/j.0306-5251.2001.01506.x
Dual Benefit: Aesthetic Slimming and Bruxism Treatment
Beyond cosmetic jawline slimming, masseter botox provides significant therapeutic benefits for patients with bruxism (teeth grinding) and temporomandibular disorder (TMD). A randomized controlled trial demonstrated that 25 units of botulinum toxin per masseter reduced nocturnal bruxism episodes by 60% and decreased jaw pain scores by 70% at 8 weeks. The aesthetic and functional benefits of masseter botox overlap substantially — hypertrophic masseter muscles are often the result of chronic clenching or grinding, meaning that the treatment simultaneously addresses the cause (bruxism) and the cosmetic consequence (wide jaw).
Shim YJ et al. Botulinum toxin therapy for managing sleep bruxism: a randomized and placebo-controlled trial. Sleep Med. 2020;69:116-125. doi:10.1016/j.sleep.2020.01.006
Long-term safety data on masseter botox shows an excellent safety profile with minimal complications. A systematic review of 22 studies encompassing over 2,500 patients found that adverse effects were limited to transient injection-site pain (12%), mild bruising (5%), and temporary asymmetry requiring touch-up (3%). No cases of dysphagia, permanent nerve damage, or significant chewing impairment were reported when injections were confined to the lower two-thirds of the masseter muscle.
Fedorowicz Z et al. Botulinum toxin for masseter hypertrophy. Cochrane Database Syst Rev. 2013;(9):CD007510. doi:10.1002/14651858.CD007510.pub2
What Patients Say About Masseter Botox at RE:BERRY Myeongdong
“I had a square jaw that always bothered me in photos. After masseter botox at RE:BERRY Myeongdong, my face looked noticeably slimmer by week 4. The injection took literally 5 minutes and I went shopping right after. No pain at all.”
“Dr. Baek noticed my left masseter was bigger than the right and adjusted the dosage accordingly. After 6 weeks both sides looked perfectly even. I also stopped grinding my teeth at night which was an unexpected bonus.”
“This was my third masseter botox session at RE:BERRY and each time I need fewer units. My jawline stays slim for almost 6 months now. The English-speaking staff made everything comfortable from booking to aftercare.”
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Frequently Asked Questions About Masseter Botox in Myeongdong
Expert answers from RE:BERRY Myeongdong masseter botox specialists.
Head Director Seung-Jae Baek (License No. 143338) performs every masseter botox procedure at RE:BERRY Myeongdong. With 30,000+ aesthetic treatments completed, Dr. Baek is certified in Juvelook Meister, Ultherapy Prime, Sofwave, and Thermage FLX. He uses the Korean multi-point injection technique with 3-5 precisely mapped points per masseter for symmetrical V-line results.
100% same-physician continuity at RE:BERRY Myeongdong — Dr. Seung-Jae Baek conducts your jaw assessment, performs the masseter botox injection, and reviews your follow-up personally. RE:BERRY’s boutique model limits to 50-75 patients per surgeon annually, while large chain clinics process 300-500+ with rotating doctors.
Dr. Seung-Jae Baek evaluates masseter muscle thickness by palpation while you clench, grades hypertrophy on a 1-4 scale, and measures bigonial width during a 60-90 minute consultation at RE:BERRY Myeongdong. Grade 1-2 patients typically need 25-40 units per side, while Grade 3-4 hypertrophy requires 50-60 units per side for optimal V-line jawline slimming.
₩29,000 (~$22) for 50 units of masseter botox at RE:BERRY Myeongdong — 90-95% less than US and UK prices for equivalent treatment.
| Dosage | RE:BERRY Myeongdong | US Average | UK Average |
|---|---|---|---|
| 50U (one side) | ₩29,000 (~$22) | $300-$600 | £200-£400 |
| 100U (both sides) | ₩58,000 (~$44) | $600-$1,200 | £400-£800 |
| Savings | — | 90-95% | 90-95% |
RE:BERRY Myeongdong offers 4 jawline contouring options from ₩19,000 to ₩1,150,000 for complete lower-face sculpting.
| Package | Price | Includes |
|---|---|---|
| Wrinkle Botox 1 Area | ₩19,000 | Forehead/glabella/crow’s feet |
| Masseter Botox 50U | ₩29,000 | Korean premium botulinum toxin |
| V-Line Package (Botox + Filler) | ₩460,000 | Juvederm chin filler 1cc + lip botox |
| Double Chin All-Kill | ₩1,150,000 | Goop 10cc + Inmode + Berry Slim |
₩29,000 for 50 units is all-inclusive at RE:BERRY Myeongdong with zero hidden charges.
| Service | Included? | Cost |
|---|---|---|
| Consultation | Yes | ₩0 |
| 50U Injection | Yes | ₩29,000 |
| Aftercare | Yes | ₩0 |
| Optional: Crow’s feet botox | Add-on | ₩19,000/area |
Masseter botox reduces muscle width (15-30%), while Inmode FX and Onda target skin laxity and fat — 40% of RE:BERRY Myeongdong patients combine 2+ modalities.
| Factor | Masseter Botox | Inmode FX | Onda |
|---|---|---|---|
| Target | Muscle | Skin/fat | Subdermal fat |
| Mechanism | Neural blockade | Bipolar RF | Microwave |
| Result onset | 2-4 weeks | 2-4 weeks | 4-8 weeks |
| Duration | 4-6 months | 6-12 months | 12-18 months |
| Price | ₩29,000/50U | Part of ₩399,000 pkg | Part of ₩1,550,000 pkg |
Masseter botox reduces muscle volume (₩29,000/50U) while lipolysis dissolves subcutaneous fat — the correct choice depends on whether your jaw width comes from muscle or fat.
| Factor | Masseter Botox | Lipolysis Injection |
|---|---|---|
| Target | Masseter muscle | Subcutaneous fat |
| Self-test | Clench jaw — bulge = muscle | Pinch — soft = fat |
| Downtime | Zero | 3-5 days swelling |
| Duration | 4-6 months | Semi-permanent |
65% of RE:BERRY Myeongdong patients combine masseter botox with 1-2 additional treatments in a single 30-40 minute session.
| Combination | Added Time | Price |
|---|---|---|
| + Forehead wrinkle botox | +5 min | ₩19,000/area |
| + Chin filler V-Line Package | +15-20 min | ₩460,000 |
| + Double Chin All-Kill | +30-40 min | ₩1,150,000 |
RE:BERRY Myeongdong’s boutique model delivers measurably different masseter botox outcomes vs high-volume Myeongdong chain clinics.
| Feature | RE:BERRY (Boutique) | Large Chain Clinic |
|---|---|---|
| Patients per surgeon/year | 50-75 | 300-500+ |
| Same surgeon throughout | 100% | ~40% |
| Consultation time | 60-90 min | 20-30 min |
| Language support | 8 languages | English + Korean |
3 measurable advantages at RE:BERRY Myeongdong for masseter botox treatment.
| Advantage | RE:BERRY Myeongdong | Other Myeongdong Clinics |
|---|---|---|
| Price (50U) | ₩29,000 promo | ₩50,000-100,000 |
| Technique | Multi-point (3-5 sites) | Often single-point |
| Language support | 8 languages | 2-3 languages |
| Walk-in availability | 365 days, 10:00-20:00 | Limited hours |
4+ hours after masseter botox is sufficient before flying from Seoul. Cabin pressure does not affect botulinum toxin once injected into the masseter muscle. RE:BERRY Myeongdong advises staying upright for 4 hours post-treatment and avoiding jaw massage during the flight. Many patients get masseter botox in the morning and fly the same evening.
1-2% adverse event rate at RE:BERRY Myeongdong: minor bruising at injection sites (1.2%, resolves in 2-3 days) and temporary bite force reduction (0.6%, normalizes in 2-4 weeks). Serious complications like smile asymmetry occur in less than 0.5% when using the multi-point technique. RE:BERRY Myeongdong’s 30-gauge ultrafine needles and lower-masseter-only injection protocol minimize all risks.
1 day is sufficient for masseter botox at RE:BERRY Myeongdong. The 10-15 minute procedure has zero downtime — walk in, get treated, and resume Myeongdong shopping immediately. RE:BERRY is open 10:00-20:00, 365 days a year. For patients combining masseter botox with V-line lifting or other treatments, 2-3 days in Seoul is recommended.
RE:BERRY Myeongdong provides written aftercare instructions in 8 languages on treatment day, remote photo-based follow-up via WhatsApp at 2-4 weeks, and a complimentary in-person review for patients still in Seoul. Key guidelines: avoid jaw massage 24 hours, stay upright 4 hours, skip hard foods 48 hours. 92% of masseter botox patients require no touch-up.
Only Authentic, Brand-Certified Equipment
Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
Start Your Masseter Botox Treatment at RE:BERRY Myeongdong
Book a free consultation with Head Director Seung-Jae Baek. Customized masseter botox for your ideal V-line. Double Chin All-Kill Package ₩1,150,000. 2 minutes from Myeongdong Station, open 365 days.
Book Your Masseter Botox Consultation at RE:BERRY Myeongdong
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
