"If I get jaw Botox, does my face get smaller?"
"I heard it weakens your chewing strength — will it be a problem for eating?"
These are the things people worried about their jawline ask about the most.
Hello, I'm Director Kwon Si-jin & Yoon Ju-hyun at DA Clinic Myeongdong ^^
We're getting ready to open our doors in Myeongdong soon, and since so many people come in carrying this question ahead of our opening, we wanted to put together this overview for your information first.
If the angular jawline has been on your mind every time you look in the mirror, we completely understand that feeling.
That said, if you get jaw Botox thinking it's a 'treatment that shaves the jawbone', it easily ends up a wasted effort. This is a treatment that acts not on bone but on muscle. So let us walk you carefully through the principle first — what you can and can't expect from it.
It Doesn't Shave the Bone; It Rests the Muscle
Let me clear up the biggest misconception first.
Jaw Botox isn't a treatment that reduces the jawbone itself; it's a treatment that acts on the muscle at the side of the jaw that does the chewing (the masseter).
The masseter is that muscle that firmly bulges up below the ear when you clench your teeth.
When this muscle is thick, the contour looks angular, and the principle is that when Botox briefly rests an overworked masseter, its volume decreases and the line comes to look softer.
So it's accurate to understand it as the muscle's volume changing, not the bone being shaved down.
Looking Slimmer Is 'Because the Muscle Shrank'
Some angular jawlines are due to a large bone itself, but there are quite a few cases where a developed masseter makes it stand out.
If you have a habit of grinding your teeth or often chewing hard foods, the masseter thickens as if it's exercising.
In these cases, when Botox reduces the masseter's activity, the muscle volume naturally decreases over time.
That said, if the contour is mainly due to bone, reducing the muscle may make little difference.
So distinguishing first whether my angular line is due to bone or muscle comes first. (there are individual differences)
Won't It Interfere With Chewing?
This is the part people worry about the most.
Because chewing is shared not by the masseter alone but by several masticatory muscles together, when it's designed with an appropriate amount, in many cases there's little interference with everyday eating.
That said, during the early adjustment period you may feel some stiffness or fatigue when chewing hard foods.
This kind of feeling usually settles as you get used to it over time.
The key, once again, is not 'a lot' but 'the right amount'. If more than necessary goes in, it can strain your expressions or chewing, so a design that puts the right amount in the precise location is important.
It Doesn't Change Dramatically All at Once
Many people expect the jawline to change the moment they get the injection.
But Botox isn't a drug that reduces the muscle instantly; it works by gradually reducing activity so the muscle slowly becomes thinner.
So the change usually settles in slowly over 2 to 4 weeks, and the effect tends to last roughly 3~6 months. (it varies by area, dose, and metabolism)
Since the muscle returns to its original function over time, many people have it done on a cycle when they want to maintain the line.
If there's no change on the day, it doesn't mean too little went in, so there's no need to be impatient.
These People Should Take an Extra Moment to Check
Jaw Botox isn't a treatment casually recommended to just anyone.
If you're pregnant, breastfeeding, or have a neuromuscular condition, it's safer to postpone the treatment and consult first.
Also, if the cause of the angular contour is mainly bone or fat rather than muscle, Botox alone may not achieve the change you'd hoped for.
So rather than "because everyone else is doing it," the order of things is to distinguish the cause of your jawline first and then decide.
FAQ
Q. How long does the effect last?
A. The effect of jaw Botox tends to last roughly 3~6 months. When botulinum toxin reduces the masseter's activity, the muscle volume decreases over time, and as the effect wears off, the muscle function gradually returns to its original state. That's why many people have it again on a cycle when they want to maintain the line. That said, as masseter use decreases with repetition, in some cases the thickness settles in slowly over successive sessions. Since the maintenance period varies with dose, individual metabolism, and chewing habits, it's good to keep in mind that there are individual differences.
Q. Won't my face sag if I get it?
A. If you put the right amount in the precise location, you can set aside much of that worry, but if more than necessary goes in or the location is off, the cheeks can look hollow or the expression can become awkward. This is a case where the masseter's volume drops sharply and the balance with the surrounding soft tissue is upset. So rather than 'putting in a lot to be sure', it's important to design the right amount while looking at the muscle condition and facial balance. If you've been bothered by cheek sagging in the past, it's safer to discuss that as well before the treatment and decide on the amount.
Q. Does it help if I grind my teeth?
A. Since it acts on the masseter, people who grind their teeth or clench their jaw sometimes consult about it together. When excessive masseter activity is reduced, some people expect the stiffness from clenching to ease. That said, teeth grinding involves several intertwined causes such as sleep and stress, so it's hard to see Botox as a treatment that removes the cause itself. Because the approach differs depending on the symptom and cause, it's best to first distinguish whether your goal is simply contour or whether you're also addressing symptom relief, and then decide on the direction.
In closing
If we sum up today's content in one line, it's this.
Jaw Botox doesn't shave the bone; it rests a developed masseter with the right amount to soften the line.
If the angular jawline has been on your mind, it's good to start by examining whether the cause is muscle. Please also remember that the result and maintenance period vary by individual.
This isn't a piece recommending a treatment, but an informational article we've put together for your reference while preparing to open.
DA Clinic Myeongdong is set to open soon. We'll share news of our opening and treatment information first on our blog and Instagram ^^
Thank you for reading this long piece. This was Director Kwon Si-jin & Yoon Ju-hyun at DA Clinic Myeongdong.
This column is an informational article meant to provide general medical information, and the effects and side effects of treatments may vary by individual. DA Clinic Myeongdong is set to open soon. (Medical Service Act Art. 56)