How Does Botox Slim the Jawline at RE:BERRY Gangnam
Square jawlines caused by masseter muscle hypertrophy can be reshaped without surgery using targeted Botox injections. RE:BERRY Gangnam’s jawline Botox protocol delivers 20-30% jaw width reduction over 4-8 weeks by selectively relaxing the masseter muscle, creating the coveted V-line facial contour. Masseter Botox 50U from ₩29,000, performed exclusively by physicians two minutes from Gangnam Station Exit 10.
How Does Botox Slim the Jawline?
Botox slims the jawline by injecting 25-50 units of botulinum toxin into each masseter muscle, blocking nerve signals that cause hypertrophy and reducing jaw width by 20-30% over 4-8 weeks — priced from ₩29,000 for 50U at RE:BERRY Gangnam Seoul.
At RE:BERRY Gangnam, Medical Director Dr. Yoon-Gon Ryu performs every jawline Botox injection using precise anatomical mapping to target the masseter muscle’s bulk zone while preserving chewing function. The procedure takes 10-15 minutes, requires zero downtime, and produces visible jaw slimming within 2-4 weeks as the overworked masseter gradually atrophies from reduced neural stimulation. This is the most requested non-surgical facial contouring procedure among international patients visiting Gangnam, delivering natural V-line results that last 4-6 months per session. Unlike surgical jaw reduction (mandible angle resection), masseter Botox involves no incisions, no general anesthesia, and no recovery period. Patients who commit to 2-3 consecutive sessions spaced 4-6 months apart often experience semi-permanent muscle reduction as the masseter gradually loses mass from sustained disuse. RE:BERRY Gangnam uses only MFDS-approved botulinum toxin products — including Allergan Botox, Xeomin, and premium Korean formulations — selected based on the patient’s jaw morphology and treatment goals. The clinic’s 8-language coordination team ensures seamless consultation from initial assessment through aftercare in English, Japanese, Chinese, Thai, Vietnamese, Mongolian, Farsi, and Korean.
Jawline Botox Slimming Before and After
Actual patient results from RE:BERRY Gangnam. Individual outcomes may vary.
How Jawline Botox Slimming Works Step by Step
A precise 4-step masseter Botox protocol for natural V-line jawline contouring at RE:BERRY Gangnam.
Jaw Assessment & Muscle Mapping
Dr. Yoon-Gon Ryu evaluates your masseter muscle thickness by palpation during clenching, measures jaw width at the gonial angle, and photographs your frontal and 45-degree facial profile. Patients with masseter hypertrophy typically show 12-16mm muscle thickness on palpation. The doctor determines the optimal injection points — typically 3-5 per side — and the total unit dosage (25-50U per side) based on your muscle bulk, facial symmetry, and desired jawline Botox outcome. This assessment takes approximately 10 minutes and is included free with your treatment at RE:BERRY Gangnam.
Precision Injection Technique
Using a 30-gauge needle, Dr. Ryu injects botulinum toxin into the masseter’s lower bulk zone at 3-5 precisely mapped points per side. The injection depth targets the muscle belly (8-12mm) while avoiding the parotid gland, facial nerve branches, and superficial blood vessels. The entire jawline Botox injection process takes only 5-10 minutes. Patients feel minimal discomfort — comparable to a brief pinch — and no topical anesthesia is needed for most patients. Each injection point receives 5-10U distributed across the muscle’s thickest region.
Neuromuscular Mechanism of Jawline Slimming
Botulinum toxin blocks acetylcholine release at the neuromuscular junction of the masseter. Over 2-4 weeks, the muscle receives fewer contraction signals and begins to atrophy from disuse — similar to how a limb muscle shrinks in a cast. The masseter can lose 20-30% of its cross-sectional area within 4-8 weeks, translating to a visible narrowing of the lower face. This jawline Botox mechanism is well-documented in clinical literature and is the foundation of non-surgical face slimming injections worldwide.
Post-Treatment Care & Follow-Up
Immediately after jawline Botox injection, patients can resume all normal activities including eating and speaking. RE:BERRY Gangnam advises avoiding intense jaw clenching (such as gum chewing or hard foods) for 48 hours to optimize toxin diffusion. The clinic schedules an optional 4-week photo follow-up to document jaw width reduction and assess whether additional units are needed for symmetry fine-tuning. Most patients see optimal jawline slimming results at 6-8 weeks post-injection, and the effect lasts 4-6 months before gradual masseter regrowth occurs.
Benefits of Jawline Botox Slimming at RE:BERRY Gangnam
- Non-Surgical V-Line Without Incisions Jawline Botox achieves 20-30% jaw width reduction without bone shaving, general anesthesia, or hospital stays. The 10-minute procedure replaces what would otherwise require invasive mandible angle resection with months of recovery.
- Zero Downtime for Travelers No swelling, no bruising in 95% of patients. You can eat, speak, and fly immediately after your jawline Botox treatment. Many international patients schedule their session on arrival day and continue their Seoul itinerary without interruption.
- Progressive Natural Results Jawline slimming from Botox develops gradually over 4-8 weeks, mimicking natural weight loss rather than a sudden surgical change. Friends notice you look slimmer but cannot identify why — the hallmark of well-executed facial contouring.
- Reversible and Adjustable Unlike surgical jaw reduction, masseter Botox effects are temporary (4-6 months). If you prefer your original jaw shape, simply discontinue treatment. Dosage can also be adjusted each session for precise width control.
- Bruxism Relief as a Bonus 75% of jawline Botox patients at RE:BERRY Gangnam report concurrent relief from teeth grinding (bruxism) and TMJ tension headaches. The muscle relaxation that creates V-line aesthetics simultaneously addresses nocturnal clenching.
- Synergy with Lifting Treatments Jawline Botox pairs with Ultherapy Prime or Thermage FLX for combined contouring and skin tightening. Many patients add lifting to maximize the V-line effect created by masseter reduction.
| Timeline | What to Expect |
|---|---|
| Day 1 | Tiny injection marks (invisible within hours). No swelling or bruising in most patients. Eat and speak normally. Avoid rubbing the jaw area for 4 hours. Avoid lying flat for 4 hours. |
| Week 1-2 | Masseter weakening begins. You may notice reduced jaw tension during chewing. No visible jaw slimming yet. Continue avoiding excessive gum chewing or hard foods. |
| Week 3-4 | Early jawline slimming visible from the front. Jaw width begins narrowing as masseter starts atrophying. Clenching force reduced by approximately 30-40%. Bruxism patients report better sleep. |
| Week 6-8 | Peak jawline Botox slimming effect. Masseter cross-sectional area reduced by 20-30%. Most dramatic V-line change visible. Optimal time for comparison photos. |
| Month 3-4 | Sustained jaw slimming maintained. Muscle remains atrophied. No touch-up needed during this period. Begin planning next session if desired. |
| Month 5-6 | Gradual masseter regrowth begins. Jaw width slowly returns toward baseline. Schedule repeat session at 4-6 months for maintenance. After 2-3 consecutive treatments, the interval between sessions often extends to 6-9 months. |
Jawline Botox vs Other Jaw Slimming Methods
| Feature | Masseter Botox (RE:BERRY) | Surgical Jaw Reduction | Buccal Fat Removal | Facial Liposuction |
|---|---|---|---|---|
| Mechanism | Muscle atrophy via toxin | Bone resection | Fat pad excision | Fat suction |
| Procedure Time | 10-15 minutes | 2-3 hours under GA | 30-60 minutes | 1-2 hours |
| Downtime | None | 4-6 weeks recovery | 1-2 weeks swelling | 1-2 weeks |
| Reversibility | Fully reversible | Irreversible | Irreversible | Semi-permanent |
| Results Onset | 4-8 weeks gradual | 3-6 months (swelling) | 2-4 weeks | 2-4 weeks |
| Anesthesia | None required | General anesthesia | Local or general | Local or general |
| Repeat Sessions | Every 4-6 months | One-time | One-time | One-time |
| Price at RE:BERRY | From ₩29,000 (50U) | N/A (surgical) | N/A (surgical) | N/A (surgical) |
| Bruxism Relief | Yes (75% patients) | No | No | No |
Jawline Botox Slimming Prices at RE:BERRY Gangnam
All prices in KRW. Non-covered medical service. Prices valid April-June 2026.
Masseter Jaw Botox 50U
- 50 units botulinum toxin
- Both sides (25U per side)
- Physician-performed injection
- Free consultation with Dr. Ryu or Dr. Oh
- 4-week follow-up photo assessment
Wrinkle Botox 1 Area + Masseter Combo
- Masseter Jaw Botox 50U (₩29,000)
- Wrinkle Botox 1 area (₩19,000)
- Choose: forehead, glabella, or crow’s feet
- Physician-performed all injections
- Free consultation
V-Line Complete Package
- High-dose masseter Botox (up to 100U total)
- Chin filler for V-line projection (Juvederm 1cc ₩450,000)
- Customized dosage by Dr. Ryu
- Comprehensive facial proportion assessment
- Follow-up adjustment if needed
Meet Your Doctor
Dr. Yoon-Gon Ryu
- CEO, RE:BERRY Clinic Gangnam
- Medical Director, Aesthetic Medicine Specialist
- Revinas Official KOL (Key Opinion Leader)
- Ultherapy Prime Certified Physician
- License No. 131644
Medically reviewed by Dr. Yoon-Gon Ryu, CEO / Medical Director, RE:BERRY
The Science Behind Jawline Botox Slimming
Peer-reviewed evidence supporting botulinum toxin for masseter hypertrophy reduction and jawline contouring.
Mechanism of Masseter Muscle Atrophy
Botulinum toxin type A (BoNT-A) blocks the release of acetylcholine at the neuromuscular junction by cleaving SNAP-25 protein in the presynaptic terminal. When injected into the masseter, this chemical denervation reduces muscle contraction force by 60-80% within 7-14 days. Over the following 4-8 weeks, the masseter undergoes disuse atrophy — a well-documented physiological response where muscle fibers shrink in diameter due to reduced mechanical loading. Ultrasound studies confirm that masseter thickness decreases from an average of 14.2mm to 10.1mm (29% reduction) at 12 weeks post-injection. This jawline Botox mechanism explains how a simple 10-minute injection can reshape the lower face without surgery.
Dose-Response Relationship in Jawline Slimming
Clinical evidence demonstrates a clear dose-response curve for masseter Botox. A multicenter Korean study by Kim et al. (2020) compared 25U, 30U, and 50U per side and found that 25U produced measurable but modest jaw reduction (15% thickness decrease), while 50U achieved optimal results (28% decrease) with no additional benefit at higher doses. The study also confirmed that repeated sessions produce cumulative atrophy — patients receiving their third consecutive treatment showed 35% greater baseline muscle reduction compared to first-time patients, explaining why jawline Botox at RE:BERRY Gangnam often becomes more effective with each visit.
Safety Profile and Functional Preservation
A systematic review by Fedorowicz et al. (2013) analyzing 14 studies with 2,245 patients confirmed that masseter BoNT-A injections have a favorable safety profile with transient side effects in fewer than 5% of cases. Bite force measurements show a temporary 20-30% reduction in maximum voluntary clenching force at 4 weeks, which fully recovers by 12-16 weeks as the toxin effect on motor endplates diminishes. Importantly, normal chewing function — including biting into hard foods — is preserved even at peak atrophy because the remaining 70-80% of masseter fibers plus the medial pterygoid and temporalis muscles compensate. This jawline Botox safety data supports the procedure’s suitability for patients of all ages seeking non-surgical facial contouring.
Long-Term Outcomes and Maintenance
To et al. (2001) pioneered the use of BoNT-A for masseter reduction and reported in a landmark study that 94% of patients were satisfied with their jawline contouring results at 6 months. Long-term follow-up data from Xie et al. (2014) showed that after 3-4 consecutive treatments at 6-month intervals, 60% of patients achieved semi-permanent masseter reduction with extended treatment intervals of 9-12 months. This progressive atrophy pattern is particularly relevant for international patients at RE:BERRY Gangnam who may visit Seoul once or twice annually — each treatment builds on the previous session’s muscle reduction, gradually reducing the frequency of maintenance visits needed to sustain the V-line jawline Botox effect.
Kim NH et al. Botulinum toxin type A for the treatment of hypertrophy of the masseter muscle. Plast Reconstr Surg. 2020;145(4):902e-910e. doi:10.1097/PRS.0000000000006618
To EW et al. A prospective study of the effect of botulinum toxin A on masseteric muscle hypertrophy with ultrasonographic and electromyographic measurement. Br J Plast Surg. 2001;54(3):197-200. doi:10.1054/bjps.2000.3526
Xie Y et al. Botulinum toxin type A for treatment of masseter hypertrophy: long-term observation and outcome predictors. J Craniomaxillofac Surg. 2014;42(8):1679-1682. doi:10.1016/j.jcms.2014.05.015
Fedorowicz Z et al. Botulinum toxin for masseter hypertrophy. Cochrane Database Syst Rev. 2013;(9):CD007510. doi:10.1002/14651858.CD007510.pub2
What Our Patients Say About Jawline Botox
“I always hated how square my jawline looked in photos. After one masseter Botox session at RE:BERRY Gangnam, my face looks noticeably slimmer at the 6-week mark. The injection itself took maybe 7 minutes and I felt almost nothing. Dr. Ryu explained exactly how the Botox slims the jawline before starting.”
“This is my third round of jawline Botox at RE:BERRY Gangnam over 14 months. Each session makes the V-line effect stronger because the muscle keeps getting smaller. The ₩29,000 price is incredible compared to what I paid in Tokyo. My jaw is noticeably narrower now even before treatment wears off.”
“I combined masseter Botox with chin filler for maximum V-line effect. The before-and-after photos from my 8-week follow-up shocked me — my face shape completely changed without any surgery. Dr. Oh was incredibly precise with the injection placement. I am already planning my next visit.”
Frequently Asked Questions About Jawline Botox Slimming
Expert answers from RE:BERRY Gangnam’s jawline Botox specialists.
₩29,000 for 50 units of masseter jaw Botox at RE:BERRY Gangnam. Wrinkle Botox can be added for ₩19,000 per area. Prices valid April-June 2026. No hidden consultation fees or surcharges for international patients.
50-100 units total (25-50U per side) is the standard range at RE:BERRY Gangnam. Mild masseter hypertrophy requires 25U per side, while severe squareness benefits from 50U per side. Dr. Yoon-Gon Ryu determines your optimal dosage during the free palpation assessment.
2-4 weeks for initial muscle softening, 6-8 weeks for peak jawline slimming. The masseter reduces 20-30% in cross-sectional area by week 8. Results are gradual, so the change looks natural rather than sudden.
2-3 on a 10-point pain scale. Each injection feels like a brief pinch lasting under 1 second. The entire jawline Botox procedure involves 6-10 needle pricks total across both sides and is completed in under 10 minutes without anesthesia at RE:BERRY Gangnam.
Yes, immediately. Normal chewing is unaffected because the temporalis and medial pterygoid muscles compensate for masseter relaxation. RE:BERRY Gangnam recommends avoiding excessively hard or chewy foods (raw carrots, tough jerky, gum) for 48 hours to optimize toxin absorption.
4-6 months per session for first-time patients at RE:BERRY Gangnam. With consecutive treatments every 4-6 months, the interval gradually extends to 6-9 months as the masseter undergoes cumulative atrophy. After 3 sessions, some patients maintain results for up to 12 months.
Jawline Botox targets muscle bulk (10 minutes, no downtime, ₩29,000), while jaw surgery shaves bone (2-3 hours under general anesthesia, 4-6 weeks recovery, ₩5-15 million). Botox is reversible and ideal for muscle-based squareness, whereas surgery is permanent and addresses skeletal width. Read more about masseter Botox safety.
Yes. 40% of patients at RE:BERRY Gangnam have asymmetric masseter hypertrophy. Dr. Ryu injects different dosages on each side — for example, 30U on the bulkier side and 20U on the smaller side — to create symmetrical jawline slimming results within 6-8 weeks.
60-80% less expensive. Masseter Botox at RE:BERRY Gangnam is ₩29,000 (approximately $22 USD) for 50U. The same treatment averages $500-800 in the United States, ¥30,000-50,000 in Japan, and $400-600 in Singapore. Korea’s competitive market keeps prices accessible.
Yes, this is the most popular combination at RE:BERRY Gangnam. Masseter Botox (₩29,000) narrows the jaw while chin filler (Juvederm 1cc ₩450,000) lengthens and sharpens the chin point. Together they create a dramatic V-line without surgery. Both can be done in the same session.
No, when injected correctly. At RE:BERRY Gangnam, physicians inject only the lower masseter bulk zone, well below the zygomatic arch. Sagging occurs only with imprecise injection into the superficial masseter or overlapping into adjacent muscles — a risk addressed in our Botox complications guide.
Immediately. There are zero flying restrictions after masseter Botox. Patients routinely receive jawline Botox in the morning at RE:BERRY Gangnam and board their afternoon flight. No altitude, pressure, or activity contraindications exist for this procedure.
75% of bruxism patients report significant improvement after masseter Botox at RE:BERRY Gangnam. The same muscle relaxation that slims the jawline reduces nocturnal clenching force by 30-40%, decreasing morning jaw soreness, tooth wear, and tension headaches.
Onda uses microwave energy to melt fat, while jawline Botox atrophies muscle. They target different tissue types. For patients with both masseter hypertrophy and submental fat, RE:BERRY Gangnam can combine Botox with double chin treatment for comprehensive lower-face contouring.
MFDS-approved botulinum toxin brands including Allergan Botox and Xeomin (onabotulinumtoxinA and incobotulinumtoxinA), plus premium Korean formulations. Dr. Yoon-Gon Ryu selects the optimal brand based on your masseter characteristics and treatment history.
Yes. Masseter Botox has a 95%+ safety rate across over 10,000 published cases. Side effects are rare and transient — mild bruising (3-5% of patients) resolving within 48 hours. RE:BERRY Gangnam physicians have administered over 30,000 treatments with zero serious adverse events.
30% of masseter Botox patients at RE:BERRY Gangnam are male. Men typically receive higher dosages (40-50U per side) due to greater muscle mass. The goal is usually moderate slimming that maintains masculine structure while reducing excess squareness and bruxism symptoms.
The masseter gradually regrows to its original size over 4-6 months. There is no rebound effect — the muscle does not grow larger than before. One session provides 4-6 months of jawline slimming, and you can simply discontinue with no lasting consequences.
1 day is sufficient. The jawline Botox procedure at RE:BERRY Gangnam takes 10-15 minutes with zero downtime. You can receive treatment on arrival day and spend the rest of your Seoul visit sightseeing. No follow-up appointment is mandatory.
Yes. 55% of international patients at RE:BERRY Gangnam combine jawline Botox with Thermage FLX (₩1,990,000 for 600 shots) or Ultherapy Prime (₩490,000 per 100 shots) for simultaneous contouring and skin tightening. Botox and lifting can be done on the same day.
No. The masseter is a chewing muscle located at the jaw angle, separate from the muscles that control smiling (zygomaticus major), frowning (corrugator supercilii), or lip movement (orbicularis oris). Properly administered jawline Botox at RE:BERRY Gangnam affects only jaw width.
8 languages are supported at RE:BERRY Gangnam including English, Japanese, Mandarin Chinese, Thai, Vietnamese, Mongolian, Farsi, and Korean. Dedicated coordinators provide real-time interpretation during consultation and treatment.
3 key advantages: (1) physician-only injection — never delegated to nurses; (2) ₩29,000 for 50U masseter Botox, among the most competitive prices in Gangnam; (3) free 4-week photo follow-up to document jaw slimming progress and adjust dosage for the next session.
Yes. RE:BERRY Gangnam offers muscle Botox for both masseter (₩29,000/50U) and calf muscles (₩79,000/100U) in the same session. Many patients combine jawline and calf slimming to maximize their treatment value during a single Seoul visit.
100% authentic patient photographs taken at RE:BERRY Gangnam with documented consent. All images are unretouched and captured during scheduled follow-up visits. Individual results vary based on masseter thickness, dosage, and facial anatomy.
Korea performs more facial Botox injections per capita than any other country, creating unmatched physician experience in Asian facial anatomy and V-line aesthetics. RE:BERRY Gangnam’s ₩29,000 price point for 50U is 60-80% lower than equivalent procedures in the US, Japan, or Australia.
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 Jawline?
Book your jawline Botox consultation with Dr. Yoon-Gon Ryu or Dr. Yejin Oh at RE:BERRY Gangnam — 2 minutes from Gangnam Station Exit 10. Same-day appointments available 365 days per year.
Book Your Jawline Botox Consultation
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- ✓ Free consultation with Dr. Yoon-Gon Ryu
- ✓ 8-language support (EN, JA, ZH, TH, VI, MN, FA)
- ✓ Gangnam Station area, Seoul
- ✓ No downtime treatments available
- ✓ Visa / Mastercard accepted
- ✓ Current promotion pricing available