Square Jaw: Slimming the Lower Face in Seoul
The short answer
A square jaw can come from bone shape, an enlarged chewing muscle, or both, and only muscle-driven width responds to jawline Botox. At Shinebom Clinic in Jamsil, Seoul, the doctor examines you in person first, then may suggest jawline slimming Botox, contour injection or lifting treatments, and will tell you honestly if bone is the main cause.
Key facts
- Causes: bone structure, masseter muscle size, clenching or grinding, fat
- Botox: slims the jaw by relaxing the muscle
- After jaw Botox: avoid tough chewy food
- Bone-based width: not changed by injections
- Pricing: quoted after consultation
Is it bone, muscle or fat?
A wide lower face can result from the angle of the jaw bone, the size of the masseter muscle, fullness below the cheek, or a mix. Habits matter: clenching, grinding and chewing mainly on one side enlarge the muscle over time. In some people the squareness is simply inherited bone shape and part of their natural face.
How does a doctor tell?
At Shinebom Clinic the doctor palpates the muscle when you clench, checks symmetry from the front and below, and compares the width at the jaw angle with the cheekbones. If the muscle bulges strongly when clenching, Botox is more likely to help. If it feels flat and hard even at rest, bone is the main factor.
Which treatments may help?
Jawline slimming Botox relaxes an overactive muscle so it reduces in size gradually, and it may also ease clenching. Facial contour injection targets fat in sagging areas of the lower face. If skin looseness is present, lifting treatments such as Ulthera may be added. The clinic does not promise a specific shape and refuses treatments that change your look.
What results are realistic?
Muscle slimming is gradual, typically over weeks, and effects are temporary, so repeat sessions are normal. A touch-up is available within 1 month. Temporary stiffness is normal, and bruises fade in days. Avoid tough chewy food after jaw Botox, and avoid pressing or deep massage for about a week.
When to see a doctor
Jaw pain, clicking or locking should be checked by a dentist or physician, not just treated cosmetically. Botox is generally avoided during pregnancy and breastfeeding. For aftercare details, see the Botox aftercare guide.
Frequently asked questions
Will jaw Botox change my smile?
It targets the chewing muscle, not the smile muscles. Chewing may feel different for a short time.
Can Botox change a bony jaw?
No. Botox acts on muscle only. If the width is mostly bone, the doctor will say so and discuss realistic options.
Can I exercise right after treatment?
Avoid hard exercise, sauna and heavy drinking for about 1 week.
Related pages
General information from Shinebom Clinic, not personal medical advice. Results and recovery vary between individuals, and all procedures carry possible risks and side effects. A doctor will confirm what suits you at consultation.
Bloom yourself, in your own way
Tell us your skin concerns and dates in English. Shinebom Clinic is a 3-minute walk from Jamsil Station, exits 8 and 9.