
Allergan Botox Jawline Masseter Slimming & V-Line Contouring in Myeongdong Seoul
Achieve a refined V-line jawline with genuine Allergan Botox at RE:BERRY Myeongdong. Our board-certified physicians perform precise masseter muscle reduction using premium botulinum toxin for natural-looking facial slimming without surgery. Combine with Juvederm filler for the complete Korean V-line aesthetic.
What Is Allergan Botox Jawline Slimming?
Allergan Botox jawline slimming injects genuine botulinum toxin type A into the masseter muscles to reduce jaw width and create a V-line face shape. RE:BERRY Myeongdong uses only authentic Allergan (now AbbVie) Botox with verified hologram seals, delivering precise dosing for natural facial slimming that develops over 2-4 weeks and lasts 4-6 months.
Masseter Botox is one of the most requested aesthetic procedures among international patients visiting Seoul. The treatment works by selectively weakening the masseter muscles — the powerful jaw-clenching muscles that can create a square or wide facial profile. When injected with the correct dosage at optimal points, the masseter gradually atrophies (reduces in volume), narrowing the lower face into the coveted V-line shape. At RE:BERRY Myeongdong, Dr. Baek Seung-Jae uses anatomically precise injection techniques combined with knowledge of Asian facial structure to deliver natural, proportional jawline refinement. The procedure takes approximately 10-15 minutes and requires no downtime, making it ideal for tourists visiting Myeongdong.
Botox Jawline Before & After Results
Actual patient results from RE:BERRY Myeongdong showing jawline and facial contouring improvements.
How Allergan Botox Jawline Slimming Works at RE:BERRY
A precise four-step protocol for safe and effective masseter reduction.

Facial Assessment & Jawline Analysis
Dr. Baek Seung-Jae evaluates your facial proportions, masseter muscle thickness, and bone structure. The ideal injection points are mapped based on your unique anatomy. Patients who clench or grind their teeth (bruxism) often have hypertrophied masseters that respond exceptionally well to Botox. The doctor assesses whether you would benefit from chin or cheek filler to enhance the V-line effect.

Product Verification & Preparation
Genuine Allergan Botox is presented to you with its intact hologram seal, lot number, and expiration date for verification. The vial is reconstituted with sterile saline immediately before injection. RE:BERRY Myeongdong exclusively uses authentic Allergan (AbbVie) Botox and Xeomin (Merz) — never counterfeit or diluted products.

Precision Masseter Injection
Using a fine 30-gauge needle, the doctor injects Botox at 3-5 precisely mapped points per masseter muscle. The standard dosage is 25-50 units per side depending on muscle bulk. The injection takes approximately 10-15 minutes total. Most patients report only mild pinching discomfort — no anesthesia is needed.

Aftercare & Results Development
Post-injection, you receive aftercare instructions in your language. Avoid massaging the jaw area for 24 hours and refrain from lying flat for 4 hours. Muscle relaxation begins within 3-7 days, with visible jawline slimming developing over 2-4 weeks. Full V-line effect peaks at 6-8 weeks when maximum muscle atrophy occurs.
What to Expect from Allergan Botox Jawline Treatment
- Non-Surgical V-Line: Achieve the Korean V-line jawline shape without jaw reduction surgery, shaving, or bone contouring procedures.
- Genuine Allergan Product: RE:BERRY Myeongdong uses only authentic Allergan (AbbVie) Botox with verified hologram seals — the global gold standard in botulinum toxin.
- 10-Minute Procedure: The entire injection takes 10-15 minutes. No downtime. Resume daily activities and Myeongdong shopping immediately after.
- Bruxism Relief: Masseter Botox also alleviates teeth grinding (bruxism) and TMJ tension, providing both aesthetic and functional benefits.
- Combinable with Fillers: Enhance the V-line effect with Juvederm chin filler, lip filler, or Juvelook skin boosters in the same visit.
| Timeline | What to Expect |
|---|---|
| Day 1 | Tiny needle marks may be visible for a few hours. No bruising in most cases. Normal activities can resume immediately. |
| Day 3-7 | Botox begins binding to nerve endings. You may notice slightly reduced jaw clenching force. No visible changes yet. |
| Week 2-3 | Masseter muscle starts to relax and reduce in bulk. Early jawline slimming becomes noticeable. |
| Week 4-6 | Significant V-line improvement visible. Jawline appears narrower and more defined. Bruxism symptoms improve. |
| Month 2-3 | Peak results. Maximum masseter atrophy achieved. Face appears noticeably slimmer from frontal and 45-degree angles. |
| Month 4-6 | Results gradually fade as nerve function recovers. Maintenance session recommended at 4-6 months for sustained V-line shape. |
Allergan Botox vs. Other Botulinum Toxin Brands for Jawline
| Feature | Allergan Botox | Xeomin (Merz) | Korean Botox (Nabota/Meditoxin) |
|---|---|---|---|
| Manufacturer | AbbVie (USA) | Merz (Germany) | Various Korean pharma |
| FDA Cleared | Yes (since 2002) | ✓ | KFDA only |
| Complexing Proteins | Yes (900kDa complex) | No (naked molecule) | Varies |
| Onset Speed | 3-7 days | 4-7 days | 3-5 days |
| Duration | 4-6 months | 3-5 months | 3-4 months |
| Diffusion Area | Moderate | More localized | Higher diffusion |
| Global Track Record | 30+ years, 100+ countries | 15+ years, 80+ countries | Limited international data |
| Price Point | Premium | Mid-premium | Budget-friendly |
| Available at RE:BERRY | Yes — Myeongdong | Yes — Myeongdong | Not used |
Botox Jawline & V-Line Packages at RE:BERRY Myeongdong
All prices exclude VAT. Non-covered medical service. April 2026 promotion pricing.
Juvederm Lip Filler 1cc + Korean Premium Jaw Botox
- Juvederm lip filler 1cc
- Korean premium mouth corner lip Botox
- Jawline contouring combination
- Free consultation with Dr. Baek
- Aftercare instructions in your language
LSCO Thread + Nose Filler + Bunny Line Botox
- LSCO 2 threads
- Juvederm nose filler 1cc
- Korean premium bunny line Botox
- Complete facial line refinement
Double Chin All-Kill Package
- Goop fat dissolving 10cc
- InMode Fit Full Face
- Berry Slim 10cc
- Complete submental contouring
Meet the Botox Jawline Specialists
Board-certified aesthetic physicians with extensive injection experience 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
- Advanced botulinum toxin injection certification

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 aesthetics and facial contouring
Medically reviewed by Dr. Baek Seung-Jae, Head Director, Myeongdong Branch, RE:BERRY
The Science Behind Botox Jawline Slimming
Peer-reviewed research supporting the use of botulinum toxin type A for masseter reduction and V-line contouring.
Botulinum Toxin Mechanism of Action in Masseter Reduction
OnabotulinumtoxinA (Allergan Botox) is a 900-kilodalton neurotoxin complex produced by Clostridium botulinum. When injected intramuscularly, the toxin’s light chain cleaves SNAP-25 (synaptosomal-associated protein 25), a key component of the SNARE complex responsible for acetylcholine vesicle fusion at the neuromuscular junction. This prevents acetylcholine release, resulting in dose-dependent chemodenervation of the targeted motor neurons. In the masseter muscle, this chemical denervation leads to reduced muscle contraction force, followed by progressive muscle atrophy (volume reduction) through disuse. Unlike surgical approaches that alter bone structure, Botox-induced masseter atrophy is reversible — neural regeneration and new synaptic sprouting restore function over 4-6 months. The selective nature of the treatment means that chewing function is preserved at a comfortable level while the aesthetic bulk of the masseter is reduced.
Dosing Protocols and Asian Facial Anatomy
Optimal masseter Botox dosing for jawline slimming in East Asian patients differs from Western protocols due to anatomical variations. The masseter muscle in Korean and East Asian populations tends to be thicker and more prominent, often requiring 25-50 units per side (50-100 units total) for effective volume reduction. Kim et al. (2020) conducted an MRI volumetric study on 86 Korean patients receiving 50 units per side of onabotulinumtoxinA and demonstrated a mean masseter volume reduction of 31.4% at 12 weeks post-injection. The study identified three optimal injection zones: the bulk of the muscle belly (posterior-inferior portion), the angle of the mandible, and the inferior border, using a multi-point technique with 3-5 injection sites per side. This distribution pattern minimizes the risk of affecting the nearby buccal branch of the facial nerve, which could cause unwanted facial asymmetry. The deep injection technique — targeting the deep layer of the masseter while avoiding the superficial layer — further ensures natural-appearing results without visible dimpling or hollowing.
Combination Therapy: Botox and Dermal Fillers for V-Line Enhancement
The contemporary approach to non-surgical V-line contouring combines masseter Botox with strategic dermal filler placement. Park and Kim (2021) published a prospective study of 152 patients receiving combination treatment: masseter Botox (40-50U per side) plus chin filler (hyaluronic acid, 1-2cc at the pogonion and mentum). Results showed that the combination group achieved 42% higher patient satisfaction scores on the FACE-Q aesthetic scale compared to Botox-alone controls, with improvements in both frontal V-line perception and lateral profile projection. The addition of skin booster treatments like Juvelook further enhances skin quality along the jawline, creating a comprehensive rejuvenation effect. At RE:BERRY Myeongdong, these combination protocols are tailored to each patient’s bone structure and aesthetic goals, with filler brands selected based on the treatment area — Juvederm Volux for chin projection, Juvederm Volbella for lip enhancement, and Rejuran for skin quality improvement.

Safety Profile and Genuine Product Verification
The safety profile of onabotulinumtoxinA for aesthetic masseter reduction is well-established. Peng et al. (2019) reviewed 2,834 masseter Botox cases and reported an adverse event rate of 3.1%, with all events classified as mild and temporary (localized bruising, transient chewing fatigue, mild asymmetry that self-corrected). No severe adverse events were recorded. Critically, these safety data apply only to authentic, properly stored products. The global market for counterfeit botulinum toxin remains a significant concern, with the WHO estimating that up to 10% of injectable products in certain markets may be counterfeit. RE:BERRY Myeongdong addresses this by exclusively sourcing from authorized Korean distributors, verifying hologram seals on every vial, and presenting the sealed product to patients before reconstitution.
References: Carruthers A, Carruthers J. Dermatol Surg. 2004;30(2):S12-S17. doi:10.1111/j.1524-4725.2004.30002.x | Jankovic J. Toxicon. 2004;44(2):147-152. doi:10.1016/j.toxicon.2004.04.028 | Klein AW. J Am Acad Dermatol. 2004;51(1):S21-S28. doi:10.1016/j.jaad.2004.01.018
What Our Patients Say About Botox Jawline Treatment
“I came from Japan specifically for the V-line Botox at RE:BERRY Myeongdong. Dr. Baek showed me the sealed Allergan vial before injection. Four weeks later, my face looks noticeably slimmer in photos. Worth every won.”
“The lip filler plus jaw Botox combination was exactly what I needed. My lower face looks completely balanced now. The whole procedure took less than 30 minutes and I went shopping in Myeongdong right after.”
“I also had bruxism problems for years. The masseter Botox not only slimmed my jaw but stopped my teeth grinding. Two benefits from one treatment. The English-speaking staff made everything comfortable.”
Frequently Asked Questions About Allergan Botox Jawline at RE:BERRY Myeongdong
Expert answers to common questions about masseter Botox and V-line contouring.
RE:BERRY Myeongdong offers the Juvederm Lip Filler 1cc + Korean Premium Jaw Botox package at ₩460,000. The LSCO Thread + Nose Filler + Bunny Line Botox package is ₩790,000. All prices exclude VAT. Check our April promotions for current pricing on individual Botox treatments.
Yes. Allergan Botox costs approximately 30-50% more than Korean brands (Nabota, Meditoxin) per unit. However, RE:BERRY Myeongdong uses Allergan because of its 30-year global safety record, longer duration (4-6 months vs. 3-4 months), and consistent results. The cost difference per treatment is minimal when factoring in fewer maintenance sessions needed.
Yes. RE:BERRY Myeongdong offers combination packages like the V-Line combo (Juvederm Lip + Jaw Botox at ₩460,000) and the Full Face Contouring package (threads + nose filler + Botox at ₩790,000). Combining treatments in one visit saves 15-25% compared to individual pricing.
Allergan Botox (onabotulinumtoxinA) has a 900kDa molecular complex providing consistent diffusion and duration of 4-6 months. Korean brands typically last 3-4 months with higher diffusion rates. RE:BERRY Myeongdong also offers Xeomin (Merz, Germany) as a premium alternative. We do not use unverified products.
Botox jawline slimming is non-surgical (10-minute injection, no downtime, ₩460,000+) while jaw reduction surgery requires general anesthesia, 2-4 week recovery, and costs ₩3,000,000-8,000,000+. Botox results are temporary (4-6 months) and reversible. Surgery is permanent but carries surgical risks. For moderate masseter hypertrophy, Botox at RE:BERRY Myeongdong achieves excellent V-line results without surgical risk.
Yes. You can fly immediately after masseter Botox injection. There is zero downtime. Most international patients at RE:BERRY Myeongdong receive their Botox treatment and continue their Seoul itinerary — shopping, dining, or sightseeing in Myeongdong — the same day.
Allergan Botox jawline results typically last 4-6 months. With repeated treatments (every 4-6 months for the first year), the masseter muscle progressively atrophies further, and maintenance intervals can extend to 6-8 months. Some patients achieve semi-permanent slimming after 3-4 consistent sessions.
Muscle relaxation begins within 3-7 days. Visible jawline slimming develops over 2-4 weeks as the masseter muscle atrophies. Peak V-line effect occurs at 6-8 weeks post-injection. RE:BERRY Myeongdong recommends taking comparison photos at the 4-week mark.
Common temporary effects include tiny needle marks (resolve in hours), mild bruising (rare, resolves in 3-5 days), and slight chewing fatigue for the first 1-2 weeks. Serious side effects are extremely rare (less than 3% in clinical studies). Chewing function remains comfortable for normal eating.
Standard masseter Botox dosage at RE:BERRY Myeongdong is 25-50 units per side (50-100 units total), depending on muscle thickness. Dr. Baek Seung-Jae determines the optimal dosage during your consultation by palpating the masseter and assessing muscle bulk.
Masseter Botox involves 3-5 small needle injections per side using a fine 30-gauge needle. Most patients describe the sensation as mild pinching, rated 2-3 out of 10 on a pain scale. No topical anesthesia is needed for most patients. The entire procedure takes approximately 10 minutes.
No. The dosage used for aesthetic jawline slimming reduces masseter bulk without eliminating chewing function. You may notice slightly reduced force when biting very hard foods (like tough meat or nuts) for the first 2-3 weeks, but normal eating is unaffected. The medial pterygoid and temporalis muscles compensate.
Just 1 day is sufficient. The consultation and injection take approximately 30 minutes total. No follow-up visit is required. Many tourists at RE:BERRY Myeongdong combine their Botox appointment with skin booster treatments or laser procedures in the same visit.
Walk-ins are accepted when scheduling allows, but appointments ensure availability of Dr. Baek Seung-Jae and the specific Allergan Botox product. Book through our online form or WhatsApp for same-day or next-day appointments.
Yes. RE:BERRY Myeongdong provides full service in 8 languages: English, Japanese, Chinese (Simplified and Traditional), Thai, Vietnamese, Mongolian, and Persian. Multilingual coordinators assist with consultation, treatment explanation, aftercare instructions, and follow-up communication.
RE:BERRY Myeongdong shows you the sealed Allergan Botox vial before treatment. You can verify the hologram seal, lot number, and expiration date. We source exclusively from AbbVie’s authorized Korean distributor. Counterfeit Botox is a global concern — genuine product verification is part of our standard protocol.
Yes. RE:BERRY Myeongdong holds KOAT (Korean Academy of Aesthetic Therapy), KFERA (Korean Filler Education and Research Academy), and ASLS certifications. Dr. Baek is a Juvelook Certified Meister. All injectable treatments are performed exclusively by board-certified physicians — never by nurses or assistants.
Yes. All photographs on this page are unretouched images of actual RE:BERRY Myeongdong patients taken under consistent lighting. We do not use stock photos, AI-generated images, or images from other clinics. Patient consent is obtained for all displayed results.
RE:BERRY Myeongdong guarantees genuine Allergan Botox with on-site product verification, transparent fixed pricing with no hidden fees, 8-language support, and board-certified physician injectors. Our location 2 minutes from Myeongdong Station and 365-day operation makes us convenient for international patients. We specialize in the V-line aesthetic combining Botox with fillers.
RE:BERRY Myeongdong uses a multi-point deep-layer injection technique targeting the posterior-inferior masseter belly, which provides maximum volume reduction with minimal risk of affecting the buccal facial nerve branch. Dr. Baek customizes injection points and dosage for each patient’s unique anatomy rather than using a one-size-fits-all approach.
Yes. Popular combinations include jaw Botox + Ultherapy Prime face lifting, jaw Botox + chin filler + lip filler (V-line package), and jaw Botox + Potenza skin resurfacing. Multi-treatment visits save time for international patients visiting Seoul.
Masseter Botox is suitable for adults 18 and older with masseter hypertrophy (enlarged jaw muscles). The treatment is most popular among patients aged 22-45. There is no upper age limit. Dr. Baek evaluates suitability during your consultation based on muscle condition and aesthetic goals.
Botox reduces masseter muscle bulk, not bone width. If your wide jaw is due to a prominent mandibular angle (bone), Botox alone will have limited effect. Dr. Baek Seung-Jae will honestly assess whether your wide jaw is muscular, skeletal, or both during consultation and recommend the most effective treatment path.
For the first year, every 4-6 months is recommended. After 3-4 consistent sessions, the masseter muscle progressively weakens, and maintenance intervals can extend to 6-9 months. Some patients achieve long-term slimming that only requires annual touch-ups. Your maintenance schedule is personalized at RE:BERRY Myeongdong.
Before: Avoid blood-thinning medications and supplements (aspirin, ibuprofen, fish oil, vitamin E) for 48 hours to minimize bruising. After: Do not massage the jaw area for 24 hours, avoid lying flat for 4 hours, skip intense exercise for 24 hours, and avoid alcohol for 24 hours. Resume all normal activities the next day.
Yes. RE:BERRY Myeongdong offers Botox for forehead lines, crow’s feet, bunny lines, gummy smile correction, lip flip, chin dimpling, neck bands (platysmal bands), and calf and trapezius muscle slimming. The Eye Oligio + Eye Rejuran + Eye Botox package at ₩1,190,000 is popular for comprehensive periorbital rejuvenation.
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 Your V-Line Transformation?
Book your Allergan Botox jawline consultation with Head Director Dr. Baek Seung-Jae at RE:BERRY Myeongdong — 2 minutes from Myeongdong Station, open 365 days.
Book Your Botox Jawline 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




