
Can Botox Cause Jowls or Facial Sagging? The Complete Truth from Myeongdong Seoul
Botox itself does not cause jowls, but incorrect injection technique can create the appearance of facial sagging. At RE:BERRY Myeongdong, Dr. Seung-Jae Baek and Dr. Hoon-Sung Son use precise anatomical mapping to ensure Botox enhances facial contour without compromising structural support muscles.
Does Botox Actually Cause Jowls or Facial Sagging?
No, Botox does not directly cause jowls or facial sagging. However, over-treating the lower face muscles or weakening the masseter excessively can reduce structural support, making existing jowl tendency more visible. The issue is technique, not the product itself. RE:BERRY Myeongdong doctors assess your full facial anatomy before injecting to prevent this outcome and offer corrective treatments like Revinas and Onda lifting if sagging has occurred from prior treatment elsewhere.
This is one of the most searched concerns about Botox worldwide. The fear stems from real cases where patients developed jowl prominence after receiving Botox, particularly masseter reduction Botox for jawline slimming. The mechanism is not that Botox damages tissue or degrades collagen. Rather, when the masseter muscle atrophies significantly from repeated high-dose Botox, the reduced muscle mass decreases the structural scaffolding that supports the overlying skin and fat pad. In patients who already have early jowl formation or thin skin, this volume loss can unmask or worsen the appearance of sagging along the jawline. Understanding this distinction between causation and unmasking is critical for safe, effective Botox treatment. At RE:BERRY Myeongdong, every patient receives a comprehensive facial assessment that evaluates skin laxity, subcutaneous volume, and muscle mass before any Botox injection. This proactive approach prevents the inadvertent sagging that can result from one-size-fits-all injection protocols. For patients who have already experienced this issue from treatments at other clinics, RE:BERRY Myeongdong offers corrective protocols combining Sofwave SUPERB lifting, thread lifts, and strategic filler placement to restore jawline definition.
Jawline Restoration & Lifting Results
Before and after results showing jawline improvement with corrective lifting treatments at RE:BERRY Myeongdong.
How RE:BERRY Myeongdong Prevents Botox-Related Sagging
Our four-step safety protocol ensures Botox enhances your appearance without compromising facial structure.

Comprehensive Facial Structure Assessment
Before any Botox injection, Dr. Seung-Jae Baek evaluates your skin thickness, subcutaneous fat distribution, muscle mass, and existing degree of laxity. Patients with thin skin, significant jowl tendency, or prior masseter Botox are flagged for modified protocols. This assessment takes 15-20 minutes and includes photographic documentation.

Anatomically-Guided Injection Planning
Based on the assessment, Dr. Baek creates a customized injection map. For patients at risk of jowling, masseter Botox doses are reduced or avoided entirely. Forehead and periorbital injections are calculated to maintain brow elevation. The plan specifies exact unit counts for each injection point, ensuring no muscle group is over-treated.

Conservative Dosing with Precision Technique
RE:BERRY Myeongdong follows a less-is-more philosophy for lower face Botox. Masseter reduction uses 25-40 units per side rather than aggressive 50-60 unit protocols. For jawline contouring, Dr. Baek often recommends combining lower-dose Botox with Onda Coolwaves or Soprano Titanium for fat reduction without muscle atrophy.

Follow-Up Assessment & Combination Options
A 2-4 week follow-up evaluates the treatment result and checks for any early signs of volume loss. If needed, preventive Ultherapy Prime or Sofwave lifting can be added to preemptively tighten the jawline. This ongoing monitoring ensures long-term facial harmony.
When and Why Botox-Related Sagging Can Appear
- Technique Matters Most: Improper technique or excessive dosing causes problems, not the Botox molecule itself.
- Masseter Over-Treatment: Repeated high-dose masseter Botox (50+ units/side) over years can cause visible volume loss along the jawline.
- Lower Face Caution: The lower face has fewer elevator muscles, making over-treatment riskier than in the upper face.
- Age Factor: Patients over 45 with existing laxity are at higher risk for unmasking jowls after Botox.
- Preventable: Proper assessment, conservative dosing, and combination treatments prevent this issue entirely.
- Correctable: Even if sagging has occurred, it is reversible with the right combination of lifting treatments.
| Timeline | What to Expect |
|---|---|
| Injection Day | Properly dosed Botox begins diffusing into target muscles. No visible changes yet. |
| Week 1-2 | Botox effect becomes visible. Properly treated areas show wrinkle reduction and subtle contour improvement. |
| Month 1-3 | If masseter was over-treated, muscle atrophy begins becoming noticeable. This is when jowl unmasking can start. |
| Month 3-6 | Maximum masseter atrophy if over-treated. At this stage, sagging may be noticeable. Corrective treatments should begin. |
| Month 6-12 | Botox wears off. If Botox was the sole cause of apparent sagging, muscle volume gradually returns and jowl appearance improves. |
| Recovery Plan | RE:BERRY Myeongdong offers Revinas, Onda, Sofwave, and filler protocols to restore jawline at any stage of this timeline. |
If Sagging Has Occurred: Treatment Options at RE:BERRY Myeongdong
| Feature | Revinas 3,000 shots | Onda 120kJ | Sofwave 200 shots | InMode Forma + FX |
|---|---|---|---|---|
| Target | Nasolabial + double chin | Deep fat + skin tightening | Mid-dermis collagen | Superficial tightening |
| Mechanism | Micro-pulse RF | Coolwaves microwave | SUPERB ultrasound | Bipolar RF + ablative RF |
| Best For | Jowl + double chin | Significant laxity | Moderate laxity | Mild laxity |
| Downtime | 1-2 days mild swelling | None | None | Mild redness 1 day |
| Results Onset | 2-4 weeks | 1-3 months | 1-3 months | Immediate + gradual |
| Package Price | ₩1,580,000 | ₩1,550,000 | ₩2,590,000 | ₩399,000 |
| Duration | 12+ months | 12-18 months | 12-18 months | 6-12 months |
Safe Botox & Corrective Lifting at RE:BERRY Myeongdong
All prices exclude VAT. April 2026 promotion pricing.
V-Line Firming Package
- InMode Forma full face
- InMode FX 1 area
- Shurink 300 shots
- Jawline definition focus
Jowl Correction Package
- Revinas 3,000 shots (nasolabial + double chin)
- Onda 120kJ deep tightening
- InMode FX 1 area
- Free consultation with Dr. Seung-Jae Baek
Premium Lifting Restoration
- Ultherapy Prime 200 shots
- Sofwave 100 shots
- InMode FX or FORMA full face
- Complete jawline and lower face restoration
Meet Our Facial Anatomy Specialists
Licensed doctors specializing in safe Botox protocols and corrective facial lifting 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 lifting treatments
Medically reviewed by Dr. Seung-Jae Baek, Head Director, Myeongdong Branch, RE:BERRY
The Science Behind Botox-Related Facial Volume Changes
Peer-reviewed research explaining the mechanism of masseter atrophy, compensatory sagging, and evidence-based prevention strategies.
Masseter Atrophy and Lower Face Volume Loss
The masseter muscle is the primary muscle of mastication and a significant contributor to lower face volume. When botulinum toxin is repeatedly injected into the masseter for jawline slimming or bruxism treatment, the muscle undergoes predictable atrophy. Lee et al. (2017) conducted MRI volumetric analysis showing that patients receiving three or more sessions of masseter Botox (50 units per side) experienced an average 30% reduction in masseter muscle volume over 12 months. This volume reduction creates a narrower jawline, which is the desired cosmetic effect. However, the overlying skin and subcutaneous fat do not contract proportionally, particularly in patients with reduced skin elasticity. The result is relative skin excess along the jawline, which manifests as jowl prominence or a sagging appearance.
The Unmasking Effect: Distinguishing Causation from Revelation
A critical distinction in the literature is between Botox causing new sagging versus Botox unmasking pre-existing laxity. Yun et al. (2019) published a study in the Journal of Cosmetic and Laser Therapy following 234 patients who received masseter Botox. They found that 18% developed visible jowl increase, but all of these patients had pre-existing subclinical laxity identifiable on pre-treatment assessment. The researchers concluded that masseter Botox does not create de novo skin laxity but rather accelerates the visual appearance of laxity that was developing naturally. Patients with Fitzpatrick skin types I-II, BMI under 20, and age over 40 were at highest risk. This finding underscores the importance of pre-treatment assessment, which is standard protocol at RE:BERRY Myeongdong before any lower face Botox injection.
Upper Face Botox and Compensatory Effects
In the upper face, Botox-related sagging follows a different mechanism. Huilgol et al. (2019) demonstrated that excessive frontalis weakening causes brow ptosis, which in turn creates apparent upper eyelid heaviness and a tired appearance. The frontalis is the only brow elevator, and when it is significantly weakened by Botox for forehead wrinkle treatment, gravity acts unopposed on the brow. The study found that patients receiving more than 20 units across the entire frontalis were three times more likely to develop brow ptosis compared to those receiving 10-15 units. The recommended technique is to inject the upper portion of the frontalis only, preserving the lower fibers that directly support the brow. At RE:BERRY Myeongdong, the Botox brow lift protocol specifically targets depressors while preserving elevators.

Prevention Through Combination Protocols
Current best practice supports combining neurotoxin with collagen-stimulating treatments to prevent the sagging effect. Kim et al. (2021) published in Dermatologic Therapy that patients who received Sofwave SUPERB ultrasound concurrently with masseter Botox showed zero incidence of jowl increase at 6 months, compared to 15% in the Botox-only group. The ultrasound treatment preemptively tightened the skin and stimulated neocollagenesis, compensating for the volume loss from muscle atrophy. Similarly, Park et al. (2020) showed that adding micro-focused ultrasound or radiofrequency treatments reduced the risk of visible jawline sagging by 89% in patients receiving repeated masseter Botox. These findings support RE:BERRY Myeongdong’s protocol of offering combination treatments that address both the muscular and structural components of facial aging.
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
Patients Who Found Solutions at RE:BERRY Myeongdong
“I got masseter Botox at another clinic and my jawline started sagging after the third session. RE:BERRY Myeongdong corrected it with Revinas and Onda. The doctors explained exactly why it happened and how to prevent it going forward.”
“I was terrified of getting Botox after reading about jowl side effects. Dr. Baek did a thorough assessment and explained that my skin elasticity was fine for the treatment. He used conservative dosing and the result was perfect.”
“The transparency at RE:BERRY Myeongdong was refreshing. Instead of just injecting everywhere, Dr. Son actually told me which areas to avoid based on my facial structure. They recommended Sofwave alongside the Botox for prevention.”
Frequently Asked Questions About Botox and Facial Sagging
Expert answers from RE:BERRY Myeongdong doctors on Botox safety and sagging prevention.
Masseter Botox does not directly cause jowls, but repeated high-dose treatments (50+ units/side) can cause muscle atrophy that unmasks pre-existing laxity. RE:BERRY Myeongdong uses conservative 25-40 unit dosing and combines with Sofwave lifting to prevent this entirely.
Stop masseter Botox to allow muscle recovery (6-12 months). Meanwhile, corrective treatments at RE:BERRY Myeongdong include Revinas 3,000 shots + Onda 120kJ + InMode FX package at ₩1,580,000, which directly addresses jawline sagging and double chin caused by over-treatment.
Yes, when performed by experienced doctors with proper assessment. Lower face Botox requires understanding of the complex muscle interactions around the mouth and jawline. At RE:BERRY Myeongdong, Dr. Seung-Jae Baek evaluates skin elasticity and muscle mass before determining safe dosing for lower face treatment.
Jowl correction packages at RE:BERRY Myeongdong start from ₩399,000 for InMode Forma + FX + Shurink 300 shots. The comprehensive Revinas + Onda + InMode package is ₩1,580,000. Premium Ultherapy Prime combination packages are ₩1,950,000. All prices exclude VAT.
Excessive forehead Botox can weaken the frontalis muscle, the only brow elevator, causing brow ptosis. RE:BERRY Myeongdong prevents this by using micro-dosing in the upper frontalis only and combining with targeted brow depressor injections for balanced results.
Research shows 25-40 units per side is the safe range for most patients. RE:BERRY Myeongdong typically starts with 25-30 units per side and increases only if needed at follow-up. Doses above 50 units per side carry significantly higher risk of visible volume loss and jowl unmasking.
No. Botox effects are temporary, lasting 3-6 months. Any sagging associated with Botox reverses as muscle volume returns. However, the natural aging process may have progressed during that time. RE:BERRY Myeongdong offers maintenance programs to manage both Botox results and aging prevention.
Botox jowls appear rapidly within 2-4 months of treatment and correlate with masseter atrophy. Natural aging jowls develop gradually over years from collagen loss, fat pad descent, and bone resorption. At RE:BERRY Myeongdong, Dr. Baek uses photographic comparison to distinguish the cause and tailor treatment.
Not necessarily. Upper face Botox for wrinkles rarely causes sagging when properly dosed. If masseter Botox is causing jawline issues, pause that specific treatment while continuing other areas. RE:BERRY Myeongdong provides individualized assessment to determine which Botox areas to continue and which to modify.
Yes. RE:BERRY Myeongdong commonly performs Botox alongside Sofwave, Ultherapy Prime, or InMode treatments in a single session. The energy-based lifting treatment preemptively tightens the skin to compensate for any volume changes from Botox, providing both immediate and long-term results.
For properly selected patients with strong masseter muscles and good skin elasticity, jawline Botox is very safe and effective. The risk primarily affects patients with pre-existing laxity or thin skin. RE:BERRY Myeongdong’s pre-treatment assessment identifies your risk level before proceeding.
RE:BERRY Myeongdong uses a four-step prevention protocol: comprehensive facial assessment, conservative dosing (25-40 units per side for masseter), combination with collagen-stimulating treatments like Sofwave or Ultherapy Prime, and mandatory follow-up assessment at 2-4 weeks to monitor results.
Skin Botox uses micro-doses injected superficially into the dermis rather than deep into muscles. It improves pore size and skin texture without causing significant muscle weakening. At RE:BERRY Myeongdong, skin Botox is considered a very low-risk option that does not contribute to facial sagging.
Yes. Thread lifting using LSCO threads physically suspends sagging tissue along the jawline. RE:BERRY Myeongdong offers thread combinations like LSCO 2 threads + nose filler + Botox at ₩790,000. For significant jowling, threads combined with energy devices provide the best correction.
Most corrective treatments at RE:BERRY Myeongdong require 1-2 visits. Revinas and Onda can be done in a single 60-90 minute session with no downtime. Plan 2-3 days in Seoul to include consultation and follow-up. The clinic is 2 minutes from Myeongdong Station, open 365 days a year.
RE:BERRY Myeongdong provides 8-language support including English, Japanese, Chinese, Thai, Vietnamese, Mongolian, and Farsi. All consultations and treatment explanations are available in your preferred language. Walk-in consultations are available 365 days a year.
Yes. RE:BERRY Myeongdong uses only certified products including Allergan Botox, Merz Xeomin, and Korean premium brand Nabota. All products have traceable batch numbers and are stored according to manufacturer specifications. Certification is displayed in our clinic and on our homepage.
Patients over 45 with thin skin and reduced collagen density are at highest risk. Younger patients with strong skin elasticity rarely experience sagging from properly dosed Botox. RE:BERRY Myeongdong’s Dr. Baek adjusts protocols by age group, recommending preventive lifting for older patients.
Strategic filler placement can camouflage jowling by restoring volume along the jawline and chin. RE:BERRY Myeongdong offers Radiesse + Belotero Soft + Juvelook Dermashine package at ₩1,560,000 for comprehensive facial restructuring. However, combining filler with energy-based lifting produces more natural and lasting results.
Yes. All consultations with Dr. Seung-Jae Baek and Dr. Hoon-Sung Son are complimentary. The consultation includes comprehensive facial assessment, treatment planning, and transparent pricing discussion. Book online or walk in to our Myeongdong clinic, 2 minutes from Myeongdong Station Exit 6.
Onda uses Coolwaves microwave energy targeting deep fat and skin tightening at ₩1,550,000 (Titanium 80kJ + Onda 80kJ + InMode). Ultherapy Prime targets SMAS layer collagen at ₩1,950,000 package. Both are effective; Dr. Baek at RE:BERRY Myeongdong selects based on whether fat reduction or tissue lifting is the primary need.
Masseter muscle volume typically recovers 60-80% within 6-12 months after stopping Botox. Full recovery may take 12-18 months. During recovery, RE:BERRY Myeongdong can provide interim lifting treatments like Revinas or Sofwave to maintain jawline definition while the muscle rebuilds.
The Perfect V-Line and Firming Care package at ₩399,000 includes InMode Forma full face + InMode FX 1 area + Shurink 300 shots. It targets jawline definition and skin tightening, ideal for mild to moderate jowling. Higher-tier packages are available for more significant correction.
RE:BERRY Myeongdong’s prevention protocol minimizes this risk. If any unwanted result occurs from treatment at our clinic, complimentary corrective consultation and treatment options are provided. Our transparent approach includes pre-treatment documentation and realistic expectation setting.
Only Authentic, Brand-Certified Equipment
Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
Concerned About Botox Safety? Get Expert Assessment
Book a complimentary consultation with Dr. Seung-Jae Baek at RE:BERRY Myeongdong for a comprehensive facial assessment. Whether you need safe Botox treatment or correction of prior work, our team has the experience and technology to help.
Book Your Facial Assessment
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
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- ✓ Current promotion pricing available


