FAQ
When Will I See Jaw Botox Results? Seoul Timeline
Quick answer
You will usually feel jaw Botox working within 1 to 2 weeks as chewing feels lighter, but visible slimming takes longer: most people notice a softer jawline at around 4 to 6 weeks, with the fullest change at roughly 2 to 3 months. At The Heal in Jamsil, Seoul, we review progress at follow-up; results vary. Send a front and side photo on KakaoTalk for an assessment.
Medically reviewed by Dr. Yang Jeong-hwa , board-certified dermatologist · Updated October 2026
Chewing feels softer
1–2 weeks
Visible slimming
4–6 weeks
Peak change
2–3 months
Lasts
About 4–6 months
Week-by-week: what to expect
- Days 3–7: the toxin starts to take effect; you may notice nothing yet.
- Weeks 1–2: chewing tough food feels a little weaker and clenching eases.
- Weeks 4–6: the masseter begins to thin, and the lower face looks softer in photos.
- Months 2–3: the most visible slimming for most people.
The muscle then slowly regains strength over the next few months. For full treatment details, see jaw Botox in Seoul .
Why is jaw slimming slower than wrinkle Botox?
On the forehead, Botox relaxes thin muscles, so lines soften within days. The masseter is different: it is a thick, bulky chewing muscle. Botox relaxes it, and the visible change comes from the muscle gradually shrinking with less use, similar to how any unused muscle loses bulk. That shrinkage takes weeks.
This is also why masseter Botox tends to last longer than wrinkle Botox. Our page on how long Botox lasts compares the typical durations.
What if my jaw doesn't look slimmer?
Jaw Botox only slims the face when width comes from a large masseter muscle. If your lower face looks wide mainly because of bone structure, fat under the jaw, or sagging jowls, the change will be smaller. That is why an in-person examination matters before treatment.
In those cases other options may work better, such as lifting for jowls or fat reduction under the chin. See square jaw and wide face for how we tell the causes apart.
Planning jaw Botox around a trip to Seoul
Because slimming peaks after you have likely returned home, travelers often book jaw Botox early in their stay and judge the result from home. Mild tenderness at the injection points fades within a day or two, and there is no visible downtime.
If a follow-up check is helpful, we can review photos by message. Many patients combine jaw Botox with lifting for a cleaner V-line face .
Not sure whether your width is muscle or bone? Book a jaw assessment before your trip.
Expert review
Dr. Yang Jeong-hwa
Medical Director · Board-certified dermatologist · Seoul National University College of Medicine
Written for international patients and reviewed for medical accuracy. Individual results vary; your plan is decided in person after a skin assessment. Our review policy
Visit us
The Heal Dermatology Clinic Jamsil
4F, 329 Olympic-ro, Songpa-gu, Seoul, Korea
5 min walk from Jamsil Station (Line 8), Exit 9
Mon & Fri 10:00–20:00
Tue–Thu 10:00–19:30
Sat 09:30–16:00 · Sun & holidays closed
International patients
Visiting Seoul? Get your plan before you fly.
English consultations with a board-certified dermatologist, 5 minutes from Jamsil Station. Treatments are scheduled around your downtime and flights. International patient guide
1
Message us
Concerns, optional photos and travel dates via form or KakaoTalk.
2
Get your plan
Suggested treatments and timing around your flights.
3
Consult & treat
In-person assessment with Dr. Yang in English, then treatment.
Frequently asked
When will I see jaw Botox results? Related questions
Will jaw Botox change how I chew?
Chewing hard or chewy foods may feel weaker for a few weeks. Normal eating is not affected, and most people adapt quickly.
How many sessions do I need for a slimmer jaw?
One session gives a visible change for many people. Repeating every 4 to 6 months for the first few sessions often helps the muscle stay slimmer.
Can jaw Botox help with teeth grinding?
It can reduce clenching force for some people. Grinding has several causes, so we may also suggest seeing a dentist for a night guard.
Can I eat right after jaw Botox?
Yes. Avoid massaging the jaw and lying flat for a few hours, and skip saunas and intense exercise for the rest of the day.
Keep exploring
Related treatments & guides
English consultations in Jamsil, Seoul
A slimmer jawline that develops after you fly home
Send your photos and travel dates. We reply with a personalised plan before you fly.