Botox for Square Jaw Korea | Jawline Slimming at Busan Seomyeon ONE Clinic
Botox for a square jaw works by temporarily relaxing enlarged masseter muscles, allowing them to gradually decrease in size and create a slimmer, more balanced facial contour. The treatment is non-surgical, requires minimal downtime, and is widely performed in Korea for both cosmetic jawline slimming and relief of teeth grinding or jaw tension. At Busan Seomyeon ONE Clinic, every masseter Botox treatment is customized to achieve natural-looking facial harmony.
A prominent or square jaw is often caused by enlarged masseter muscles, which can make the lower face appear wider and more angular. At Busan Seomyeon ONE Clinic, we provide customized Botox for square jaw treatments that relax the masseter muscles to create a slimmer, softer, and more balanced facial contour without surgery. Conveniently located at 6F, Inje Medical New Building, 785 Gayadae-ro, Busanjin-gu, Busan, our clinic welcomes both Korean and international patients with English-friendly consultations and individualized treatment plans. Using premium botulinum toxin products and precise injection techniques, our experienced medical professionals carefully tailor each treatment according to your facial anatomy, muscle strength, and aesthetic goals. Whether your objective is achieving a natural V-line, reducing teeth grinding (bruxism), relieving jaw tension, or creating a more feminine or refined facial profile, our personalized approach delivers elegant, natural-looking results with minimal downtime.
Why Choose Masseter Botox for a Square Jaw?
A square jaw is not always caused by bone structure. In many people, enlarged chewing muscles create a wider facial appearance. Botox temporarily reduces muscle activity, allowing the muscles to gradually become smaller while preserving normal chewing function.
Benefits include:
- Non-surgical jawline slimming
- Softer and more feminine facial contour
- Natural-looking V-line appearance
- Reduction of enlarged masseter muscles
- Relief from jaw clenching and teeth grinding
- Improved facial balance
- Minimal discomfort
- Little to no downtime
Who Is a Good Candidate?
Masseter Botox is ideal for patients who have:
- A wide or square lower face caused by strong jaw muscles
- Enlarged masseter muscles from frequent chewing
- Bruxism (teeth grinding)
- Jaw clenching due to stress
- Facial asymmetry caused by uneven muscle development
- A desire for non-surgical facial contouring
During your consultation, our practitioners will evaluate whether muscle size, bone structure, or both contribute to your jawline before recommending treatment.
What to Expect During Treatment
Treatment begins with a detailed facial assessment and examination of the masseter muscles while clenching. Your practitioner then performs precise Botox injections into selected areas of each masseter muscle using very fine needles. The procedure usually takes only 10 to 20 minutes. Most patients return to work or sightseeing immediately afterward. Initial improvements begin within one to two weeks, while noticeable jawline slimming gradually develops over four to eight weeks as the muscles decrease in size. Results typically last between four and six months, although individual duration varies.
Why Choose Busan Seomyeon ONE Clinic?
At Busan Seomyeon ONE Clinic, we believe facial contouring should enhance your natural appearance rather than dramatically alter it. Our experienced practitioners carefully assess facial proportions, muscle strength, and aesthetic goals before creating a customized treatment plan. International patients appreciate our English-friendly consultations, transparent communication, premium botulinum toxin products, and individualized aftercare support.
Clinic Address
BUSAN SEOMYEON ONE CLINIC
6F, Inje Medical New Building
785 Gayadae-ro, Busanjin-gu, Busan, South Korea
FAQs
How does Botox slim a square jaw?
Botox works by temporarily relaxing the masseter muscles responsible for chewing. Over several weeks, reduced muscle activity allows the enlarged muscles to gradually decrease in size, creating a slimmer, softer jawline. The treatment does not change the jawbone itself but reshapes the facial contour by reducing muscle bulk.
How long does it take to see jawline slimming results?
Some patients notice the muscles beginning to relax within one to two weeks, but visible jawline slimming usually becomes more noticeable after four to eight weeks as the masseter muscles gradually become smaller. The full contouring effect develops naturally over time.
How long do masseter Botox results last?
Results generally last between four and six months, although this varies depending on muscle strength, metabolism, dosage, and lifestyle. Patients with stronger chewing muscles may require maintenance treatments to preserve long-term facial contouring results.
Can Botox help with teeth grinding and jaw tension?
Yes. In addition to cosmetic jawline slimming, masseter Botox is commonly used to reduce excessive jaw clenching and teeth grinding (bruxism). Relaxing the chewing muscles may help decrease jaw fatigue, muscle tension, and discomfort while also creating a slimmer facial appearance.
Will my face look unnatural after jaw Botox?
When performed by experienced practitioners, jaw Botox creates gradual, subtle slimming while maintaining natural facial proportions and normal expressions. The goal is to enhance facial harmony rather than produce an exaggerated or over-treated appearance.
Is Botox for square jaw suitable for international patients?
Absolutely. Busan Seomyeon ONE Clinic welcomes patients from around the world and provides English-friendly consultations. Our team carefully explains the treatment process, expected results, and aftercare so international visitors can feel confident throughout their aesthetic journey.

