Hongdae Square Jaw Botox: Effects and How to Prevent Side Effects

Hello. I’m Dr. Jo Wonjin, and I’ve been treating patients for 10 years.

My friend said it worked for them, but I ended up with a peanut-shaped face

Is it true that if it’s done wrong, your face can sag?

To answer right away, if it’s done incorrectly, there is a possibility of facial sagging or hollow cheeks.

However, these are side effects that can be sufficiently prevented depending on how the treatment is performed.

Under the topic of Hongdae square jaw Botox: effects and how to prevent side effects,

I’ll explain how it should be done so you can get the full effect while minimizing side effects like those shown in the photo below.

Table of contents

1. The principle of square jaw Botox and how long it lasts by period

2. The effects of square jaw Botox and the procedure that suits me

3. Side effects of square jaw Botox and how to prevent them

4. The principle of square jaw Botox and how long it lasts by period

Hongdae square jaw Botox is a procedure that relaxes overdeveloped jaw muscles and naturally reduces their volume.

Our muscles tend to get bigger the more we use them, and this treatment helps release that tension.

Immediately after the procedure to 2 weeks	Muscle movement gradually decreases, with slight stiffness when chewing hard food
3 to 4 weeks	The chewing muscles noticeably shrink, and the jawline begins to look smoother
2 to 3 months	Muscle volume decreases the most, making the jawline sharper and more balanced
3 to 6 months	Muscle strength returns, and the effect gradually wears off

It is difficult to achieve a permanent effect with just one treatment,

but with consistent care, the interval can later be extended to every 6 months to 1 year.

2. The effects of square jaw Botox and the procedure that suits me

Hongdae square jaw Botox is a cost-effective procedure that makes the face look slimmer without surgery,

but the most important thing is first checking whether your concern can actually be solved with Botox.

1. Types that can get a definite change with Botox

(1) When the lower face volume is due to muscle:

These are people whose lower face looks wide not because the bone itself is large, but because the masseter muscle is thick and developed.

Now, place both palms under your ears and along the jawline, then clench your back teeth tightly.

If you can feel a muscle that becomes firm and bulges enough to push against your palms?

You can see results with Botox alone.

(2) When facial asymmetry is the concern:

These are people whose jaw muscles on both sides differ in size because they chew food mostly on one side or have a habit of making uneven facial expressions.

In such cases, asymmetry improves only when the injection dosage is carefully adjusted according to muscle volume.

That is why I do not recommend coming in for the same dose to be applied mechanically.

(3) When you have jaw pain and a teeth-grinding habit:

For people who clench their teeth tightly while sleeping or grind their teeth heavily,

simply relieving muscle tension can also help reduce jaw pain or related headaches.

2. When the cause is not muscle

If the diagnosis shows that the reason the jaw looks angular is not muscle, then a different approach is needed.

If the jawline looks wide because there is a lot of fat or because elasticity has decreased,

lifting procedures such as Ulthera, Shrink, or Thermage, or contour injections that reduce fat, may be more suitable.

Also, if the area below the ears has noticeably enlarged salivary glands, Botox should be injected into the salivary glands rather than the jaw muscles for proper effect.

If the cause is a structural one, such as the jawbone itself being wide, the effect may be limited, so it is important to get a proper diagnosis first.

When choosing Hongdae square jaw Botox, it is most important to carefully check whether the cause of your face shape is muscle, fat, salivary glands,

or bone.

3. Side effects of square jaw Botox and how to prevent them

Even a simple procedure can cause uncomfortable symptoms if it is performed mechanically without understanding the facial structure.

The first is hollow cheeks, where the area below the cheekbones loses volume.

This can easily happen when skin elasticity is insufficient, when there is little cheek fat, or when too much is injected into the wrong place.

That is why, before treatment, it is important to closely analyze the facial fat and muscle positions and inject the proper dose into the exact location.

Square jaw Botox should be injected near the yellow area to help prevent the hollow-cheek side effect. The red X-marked area must be avoided.

Such symptoms aside, facial skin may also sag as a side effect.

That is explained in detail in the post below.

The second is the opposite issue, where the tip of the chin protrudes like a small candy.

This can happen when the medication does not spread evenly throughout the area,

but it can be easily corrected by adding more medication through a touch-up, so there is no need to worry too much.

The third is the risk of “resistance,” where the effect weakens over time or the duration becomes shorter.

Avoiding overly frequent treatments and choosing pure products with fewer impurities (such as Xeomin and Coretox shown in the photos below)

while keeping to the recommended intervals is the safest way to prevent this.

It is important to know which product is used, but please also make sure that the authentic product is opened in front of you.

Even if you know all of this, choosing a clinic may still be difficult.

If that is the case, be sure to read the post below, which may make your decision a little easier.

Key points

• You need to accurately identify the reason your jaw looks angular in order to find the treatment you truly need, whether Botox or lifting.

• To prevent hollow cheeks and asymmetry, adjusting the dosage to match each person’s muscle volume and face shape is essential.

• If you do not overdo it and follow the recommended intervals, you can enjoy the effect for longer without worrying about resistance.

Hongdae square jaw Botox is a procedure that is easy to get almost anywhere, which also means that if it is done incorrectly, it can easily become stressful because of side effects.

I hope you receive it safely at a place that carefully understands your facial shape and provides consultation while predicting the results.

Thank you. This was Jo Wonjin.