Botox Jawline Slimming in Seoul Myeongdong
Achieve a refined, slimmer V-line jawline without surgery. RE:BERRY Myeongdong uses Korean premium botulinum toxin injections to reduce masseter muscle bulk, delivering natural facial contouring results favored by Korean aesthetic medicine specialists.
What Is Botox Jawline Slimming?
Botox jawline slimming is a non-surgical V-line contouring procedure that injects botulinum toxin into the masseter (jaw) muscles to reduce their bulk over 4-8 weeks. At RE:BERRY Myeongdong Seoul, board-certified doctors use Korean premium botox to create a slimmer, more oval facial profile without downtime or incisions.
Masseter muscle hypertrophy is one of the most common causes of a square or wide jawline, particularly among East Asian patients. Botox jawline slimming — also called masseter reduction or V-line botox — works by temporarily relaxing the masseter muscle through targeted botulinum toxin injections. As the muscle activity decreases, its volume gradually reduces over 4 to 8 weeks, resulting in a naturally slimmer jawline. This is the single most popular non-surgical facial contouring procedure performed at Korean dermatology clinics, and RE:BERRY Myeongdong has refined its injection technique through thousands of treatments. Unlike surgical jaw reduction (which involves bone shaving), botox jawline slimming is reversible, virtually painless, and requires zero downtime. Patients typically return for maintenance sessions every 4-6 months, though the interval lengthens with repeated treatments as the masseter muscle gradually atrophies. Dr. Seung-Jae Baek applies a personalized dosing protocol based on jaw width, masseter thickness measured via palpation, and the patient’s aesthetic goals. The treatment takes approximately 10 minutes and patients can resume normal activities immediately. Results become visible within 2-4 weeks and reach their peak at 6-8 weeks post-injection. RE:BERRY Myeongdong uses only KFDA-approved botulinum toxin products including Nabota and Xeomin, which are manufactured under strict pharmaceutical standards. For patients seeking more dramatic facial contouring, jawline slimming botox can be combined with lip enhancement or chin filler to create a harmonious overall profile.
Jawline Slimming Before & After
Actual patient results from RE:BERRY Myeongdong. Individual results may vary.
How Botox Jawline Slimming Works at RE:BERRY
A straightforward four-step protocol for optimal V-line results.
Facial Assessment & Muscle Analysis
Dr. Seung-Jae Baek evaluates your facial proportions, masseter thickness, and bite pattern to determine optimal injection dosage and placement. This step ensures natural-looking results tailored to your facial structure.
Precision Marking & Ice Numbing
The injection points are marked on the masseter muscle area. Ice or topical numbing cream is applied to minimize any discomfort. Typically 3-5 injection points are marked per side for even distribution.
Targeted Botox Injection
Using ultra-fine needles, botulinum toxin is injected into the masseter muscle at precise depths. The entire injection process takes approximately 5-10 minutes per side. Most patients describe the sensation as a mild pinch.
Post-Treatment Care & Follow-Up
No downtime required. Avoid lying down for 4 hours and do not massage the area for 24 hours. A follow-up check at 4 weeks ensures the muscle is responding evenly. Touch-up injections are available if needed.
What to Expect from Jawline Slimming Botox
- Non-Surgical V-Line: Achieve a slimmer jawline without bone surgery, incisions, or general anesthesia.
- Quick Procedure: The entire treatment takes just 10-15 minutes with no downtime needed.
- Natural Results: Gradual reduction looks natural, not abrupt — people notice you look slimmer, not ‘done.’
- Bruxism Relief: Masseter botox also relieves jaw clenching and teeth grinding (bruxism) symptoms.
- Cumulative Effect: With repeated sessions, the masseter muscle atrophies further, extending intervals between treatments.
| Timeline | What to Expect |
|---|---|
| Day 1-3 | No visible change yet. Mild tenderness at injection sites resolves within hours. Normal activities resume immediately. |
| Week 1-2 | Muscle starts to relax. You may notice reduced jaw clenching and less tension during chewing. |
| Week 3-4 | Visible slimming begins as masseter muscle volume decreases. Jawline appears softer. |
| Week 6-8 | Peak results. Maximum V-line contouring visible. Follow-up assessment recommended. |
| Month 3-4 | Results maintained. Some patients begin to notice gradual return of muscle activity. |
| Month 4-6 | Maintenance session recommended. Interval lengthens with each subsequent treatment cycle. |
Botox Jawline Slimming vs. Other V-Line Procedures
| Feature | Masseter Botox | Jaw Surgery (V-Line) | Buccal Fat Removal | Chin Filler |
|---|---|---|---|---|
| Method | Botulinum toxin injection | Bone shaving surgery | Fat pad excision | Hyaluronic acid injection |
| Invasiveness | Non-invasive | Highly invasive (GA) | Minimally invasive | Non-invasive |
| Downtime | None | 2-4 weeks | 1-2 weeks | None |
| Duration of Results | 4-6 months | Permanent | Permanent | 12-18 months |
| Pain Level | Minimal (1-2/10) | Significant | Moderate | Minimal (2-3/10) |
| Reversible | ✓ | No | No | Yes (dissolvable) |
| Session Time | 10-15 minutes | 2-4 hours | 30-60 minutes | 15-20 minutes |
| Cost (Korea) | From ~₩460,000 (package) | ₩3-8M+ | ₩1-3M | From ₩359,000 |
Jawline Slimming Packages at RE:BERRY Myeongdong
All prices exclude VAT. Non-covered medical service. April 2026 promotion pricing.
Beautiful Facial Line Package
- Juvederm Lip Filler 1cc
- Korean Premium Mouth Corner Lip Botox
- Free consultation with Dr. Baek
- Aftercare instructions in your language
LSCO Thread + Filler + Botox Package
- LSCO 2 Threads
- Juvederm Nose Filler 1cc
- Korean Premium Bunny Line Botox
- Free consultation with Dr. Baek
- Aftercare instructions in your language
First Visit Masseter Botox Trial
- Potenza treatment session
- One-time trial pricing for new patients
- Consultation with board-certified doctor
- Aftercare included
Meet Our Jawline Slimming Specialists
Board-certified aesthetic physicians with extensive experience in facial contouring injections at RE:BERRY Myeongdong.
Dr. Seung-Jae Baek
- Head Director, RE:BERRY Clinic Myeongdong
- Juvelook Certified Meister & Speaker
- Member, Korean Academy of Aesthetic Medicine
- Member, Korean Filler Education and Research Academy
Dr. Hoon-Sung Son
- Doctor, RE:BERRY Clinic Myeongdong
- Member, Korean Academy of Aesthetic Medicine
- Member, Korean Society for Laser Medicine and Surgery
- Specialist in non-surgical facial contouring
Medically reviewed by Dr. Seung-Jae Baek, Head Director, Myeongdong Branch, RE:BERRY
The Science Behind Botox Jawline Slimming
Peer-reviewed research supporting masseter botulinum toxin for facial contouring and V-line results.
Mechanism of Action: Botulinum Toxin and Muscle Atrophy
Botulinum toxin type A (BoNT-A) works by blocking the release of acetylcholine at the neuromuscular junction. When injected into the masseter muscle, it inhibits the signal that causes the muscle to contract. Over the following weeks, the reduced neural stimulation leads to disuse atrophy — a natural decrease in muscle fiber size and overall muscle volume. This mechanism is well-established in neuroscience literature and has been applied in aesthetic medicine since the early 1990s. The masseter is one of the strongest muscles in the human body, generating up to 70 pounds of force on the molars. Its hypertrophy (enlargement) can result from habitual clenching, bruxism, genetics, or diet-related factors such as frequent gum chewing. When enlarged, the masseter creates a square or wide lower face silhouette, which many patients wish to soften into a more oval or V-shaped profile.
Dosing and Injection Technique
Clinical literature recommends 25-50 units of botulinum toxin per side for masseter reduction, though dosing varies based on muscle thickness and patient goals. A landmark study by Kim et al. (2003) in Dermatologic Surgery established the optimal injection points within the masseter muscle belly, avoiding the parotid gland and the marginal mandibular branch of the facial nerve. The technique used at RE:BERRY Myeongdong follows the multi-point injection method, placing 3-5 injection sites per side in the lower two-thirds of the masseter, where the muscle is thickest. This ensures even distribution and prevents asymmetry. Dr. Seung-Jae Baek also considers the relationship between the masseter and the parotid gland, placing injections at a safe depth of 5-7mm to target the muscle body without affecting surrounding structures. Ultrasound guidance may be used in complex cases where the anatomy is less predictable.
Clinical Evidence for V-Line Contouring
Multiple peer-reviewed studies confirm the efficacy of masseter BoNT-A injections for facial contouring. A prospective study by To et al. (2001) in the British Journal of Plastic Surgery demonstrated a mean masseter thickness reduction of 31% at 12 weeks after botulinum toxin injection. Kim et al. (2003) reported that 94% of patients were satisfied with their facial slimming results at 6 months. More recently, a systematic review by Fedorowicz et al. (2013) in the Cochrane Database confirmed the safety and efficacy of BoNT-A for masseter hypertrophy, noting minimal adverse effects. Park et al. (2016) in the Journal of Cosmetic Dermatology demonstrated that repeated injections at 6-month intervals produced progressively greater and longer-lasting volume reduction, supporting the clinical practice of maintenance treatments. The study found that after three consecutive sessions, patients could extend their re-treatment interval to 9-12 months. These findings align with the treatment protocols practiced at RE:BERRY Myeongdong, where personalized dosing and scheduled follow-ups optimize long-term results.
Safety Profile and Contraindications
BoNT-A for masseter reduction carries a well-documented safety profile. Common side effects are limited to mild injection site tenderness and rare, temporary bruising. Serious complications such as difficulty chewing or smile asymmetry are rare (less than 1% in published literature) and are typically associated with incorrect injection placement or excessive dosing. Contraindications include pregnancy, neuromuscular disorders such as myasthenia gravis, and known allergy to botulinum toxin components. RE:BERRY Myeongdong screens all patients for contraindications during the pre-treatment consultation, ensuring both safety and optimal outcomes.
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 Jawline Slimming
“I had masseter botox in my home country before, but the results at RE:BERRY were noticeably better. Dr. Baek really understood the exact look I wanted — a natural V-line without looking gaunt.”
“The whole process took about 15 minutes and I went straight to shopping in Myeongdong afterward. By week 4, my jawline was visibly slimmer. My friends thought I lost weight.”
“Third session at RE:BERRY now. Each time the result lasts longer. The staff speaks my language and the pricing was exactly as quoted online — no hidden fees.”
Frequently Asked Questions About Botox Jawline Slimming
Expert answers from RE:BERRY Myeongdong’s botox specialists.
RE:BERRY Myeongdong offers jawline slimming as part of facial contouring packages starting from ₩460,000 for the Beautiful Facial Line package (Juvederm Lip Filler 1cc + Korean Premium Botox). Individual masseter botox pricing varies by units needed. All prices exclude VAT. See our full botox pricing guide for details.
Most patients need 25-50 units per side (50-100 units total) depending on masseter muscle thickness. Dr. Seung-Jae Baek at RE:BERRY Myeongdong assesses your individual muscle size during consultation and recommends the precise dosage for optimal results.
Results typically last 4-6 months after the first session. With repeated treatments at RE:BERRY Myeongdong, the interval extends to 6-9 months as the masseter muscle gradually atrophies. After three sessions, many patients maintain results for up to 12 months.
Most patients rate the pain at 1-2 on a 10-point scale. RE:BERRY Myeongdong applies ice numbing before injection, and uses ultra-fine needles. The entire injection process takes under 10 minutes per side.
Yes, you can eat immediately after treatment. You may notice slightly reduced bite force in the first 1-2 weeks, particularly with very hard foods like tough steak or hard nuts. Normal chewing function returns quickly. RE:BERRY Myeongdong advises avoiding extremely chewy foods for 48 hours.
Botox jawline slimming targets muscle-based width and is ideal for masseter hypertrophy. Jaw surgery (V-line osteotomy) is needed only when bone structure causes the width. At RE:BERRY Myeongdong, Dr. Seung-Jae Baek evaluates whether your jawline width is muscular or skeletal to recommend the appropriate treatment. See our treatment comparison page for more details.
Visible slimming typically begins at 2-3 weeks after injection, with peak results at 6-8 weeks. RE:BERRY Myeongdong schedules a follow-up assessment at 4 weeks to evaluate progress and determine if a touch-up is needed.
Yes. Asymmetric masseters are common, and RE:BERRY Myeongdong doctors inject different dosages per side to correct asymmetry. Dr. Seung-Jae Baek carefully measures both sides during assessment and adjusts unit counts accordingly.
Not when properly dosed. RE:BERRY Myeongdong uses conservative, personalized dosing to slim the jawline while preserving natural facial volume. Overdosing is the primary cause of the hollow look, which is why experienced injection technique matters.
Absolutely. RE:BERRY Myeongdong frequently combines masseter botox with chin filler (Juvederm, from ₩359,000 for first-visit imported filler) to create a more defined V-line. The botox slims the sides while chin filler elongates the lower face for balanced proportions.
RE:BERRY Myeongdong uses KFDA-approved botulinum toxin products including Nabota (Korean premium) and Xeomin (German-made). All products are genuine, stored at proper temperature, and opened fresh for each patient. See our botox overview page for product details.
Yes. Masseter botox is one of the most routine aesthetic procedures in Seoul. RE:BERRY Myeongdong provides 8-language support, transparent pricing, and is located 2 minutes from Myeongdong Station Exit 6, making it highly accessible for international visitors.
Yes. There are no flying restrictions after botox injections. RE:BERRY Myeongdong treats many tourists who receive botox and fly out the same day. Avoid rubbing the injection area for 24 hours and stay upright for 4 hours post-treatment.
While botox is not permanent, 3-5 consecutive sessions (every 4-6 months) produce long-lasting muscle atrophy. Many RE:BERRY Myeongdong patients find they need maintenance only once per year after their initial treatment course.
Yes. Masseter botox is an effective treatment for bruxism and jaw clenching. By relaxing the masseter muscle, it reduces grinding force by up to 50%. Many patients at RE:BERRY Myeongdong report improved sleep quality and reduced morning jaw pain after treatment.
Masseter botox reduces muscle width at the jawline, while cheek filler adds volume to the mid-face. They address different concerns. RE:BERRY Myeongdong often combines both — masseter botox for jaw slimming plus strategic filler placement for a harmonious overall facial contour.
Yes. All before-and-after images on the RE:BERRY Myeongdong website are from actual patients treated at our clinic. Photos are taken under standardized lighting conditions and are unretouched to show genuine results.
Yes. RE:BERRY Myeongdong includes a free consultation with every botox treatment. Dr. Seung-Jae Baek assesses your masseter thickness, facial proportions, and goals before recommending a treatment plan. Walk-in consultations are available but appointments are recommended.
Yes. Male patients make up approximately 30% of jawline botox patients at RE:BERRY Myeongdong. Men typically require higher dosages (40-60 units per side) due to larger masseter muscles. The goal for male patients is usually a more refined — not feminized — jawline.
Before: avoid blood thinners (aspirin, ibuprofen) for 7 days to minimize bruising. After: avoid alcohol for 24 hours, do not massage the injection area, stay upright for 4 hours, and skip intense exercise for 24 hours. RE:BERRY Myeongdong provides aftercare instructions in your language.
Yes. RE:BERRY Myeongdong holds KOAT (Korean Obesity and Aesthetic Treatment) certification and KFERA (Korean Filler Education and Research Academy) membership. All doctors are board-certified and certified by the Korean Academy of Aesthetic Medicine.
RE:BERRY Myeongdong combines transparent pricing, 8-language support, KFDA-approved products, and board-certified specialists. Located in Seoul’s busiest shopping district, we serve thousands of international patients annually with consistent, documented results.
Yes. Some patients combine masseter botox for muscle-based slimming with thread lifting for skin tightening. RE:BERRY Myeongdong offers the LSCO thread + Juvederm nose filler + bunny line botox package at ₩790,000 for comprehensive facial contouring.
The masseter muscle gradually returns to its original size over 6-12 months after your last injection. However, after multiple sessions, the muscle does not typically return to its full pre-treatment size, as repeated atrophy causes some lasting volume reduction.
You can book through WhatsApp, LINE, WeChat, or by contacting RE:BERRY Myeongdong directly. Walk-ins are welcome, but advance booking guarantees your preferred time slot. The clinic is open 365 days a year, located 2 minutes from Myeongdong Station.
Korea has the highest concentration of aesthetic clinics globally, creating competitive pricing. RE:BERRY Myeongdong uses KFDA-approved Korean premium botox (Nabota) which is manufactured domestically, further reducing cost. The same treatment can cost 2-3 times more in Singapore, Japan, or Western countries.
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, More Defined Jawline?
Book your consultation with Dr. Seung-Jae Baek at RE:BERRY Myeongdong — 2 minutes from Myeongdong Station. Non-surgical V-line contouring with visible results in 4-6 weeks.
Book Your Jawline Slimming 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