Hongdae Glabellar Botox: Let's first understand the function of the muscles between the eyebrows

September 22, 2026

Hello.

I am Dr. Kim Dong-young, Director of Cleor Clinic Hongdae Branch.

There are moments when you see your own face in the corner of the screen during a video conference.

That is when you first realize you have been frowning throughout the meeting,

and you wonder why you had that expression when you weren't even in a bad mood.

This is a story I hear very often in the consultation room.

The glabella is the first area that moves when you speak or concentrate.

Whenever the text on the screen is small, when sunlight hits your eyes,

or when you are organizing your thoughts, the muscles between your eyebrows are pulled inward,

causing the skin to fold vertically.

Beyond the stage where lines are only visible when making expressions,

once you reach the stage where lines remain for a while even after relaxing your face,

you start to become concerned.

Today, I will explain in order what Hongdae glabellar Botox is,

exactly which stage of the signal transmission to the muscle is stopped,

what its strengths are, and what you should know in advance.

What is Hongdae glabellar Botox?

👉 Hongdae glabellar Botox is a treatment that temporarily reduces the amount of nerve signals reaching the facial muscles that pull the area between the eyebrows inward,

thereby reducing the frequency with which vertical glabellar lines are folded.

The botulinum toxin used here is a protein component.

It is a pharmaceutical form refined from the toxin structure produced by bacteria,

and it has a structure where the part that enters the nerve ending is connected to the part that

actually acts within it.

The composition of the surrounding proteins that wrap this protein varies slightly by product, which divides them into different families.

Rather than one being better than the other, it is accurate to understand them as options with different compositions.

Lines that form on the glabella are broadly divided into two states.

A state that appears only when making expressions, and a state where lines remain even when the face is relaxed.

Since Botox-type treatments are involved in the part stemming from facial movements,

we first look at the proportion of these two states to determine the direction.

Strengths of Hongdae glabellar Botox

👉 The strength of Hongdae glabellar Botox lies in the fact that it precisely targets one stage of signal transmission,

and that its action remains within a narrow range.

First,it targets the final stage where the signal reaches the muscle.Muscles do not move on their own; they must receive signals from nerve endings to contract.

At the nerve ending, a neurotransmitter called acetylcholine is contained in small vesicle-shaped sacs.

When a signal arrives, these vesicles move toward the cell membrane, attach to it, and release their contents outward.

Botulinum toxin prevents the protein mechanism that attaches the vesicles to the cell membrane from

functioning properly,

stopping this stage of neurotransmitter release for a while.

The fact that it is a method of reducing signal arrival rather than damaging muscles or reducing their volume distinguishes its nature.

Second,

it adjusts the distribution of two forces pulling in opposite directions.

Around the eyebrows, there are muscle groups that pull the eyebrows inward and downward, and forehead muscles that pull the eyebrows upward.These two groups pull in opposite directions to achieve balance.If you only reduce the downward force on the glabella, the upward force becomes relatively

dominant, leading to a position where the eyebrow height is comfortable.

Conversely, if you treat the forehead area too aggressively, the eyebrows may feel heavy,

so how to divide the force between these two groups is the first thing we decide when looking at the glabella.

Third,

the range of action is limited to the area around the injection point.

Toxin is not a component that spreads throughout the body via the blood,

but stays at the nerve endings around the injected site.

Therefore, it is possible to selectively treat only a narrow area like the space between the eyebrows,and it is possible to arrange it so that other facial muscles used for smiling or speaking are left alone.The ability to treat narrow areas separately is why it is used when you want to tidy up your impression while keeping your expressions.

Principle of Hongdae glabellar Botox

👉 The principle of Hongdae glabellar Botox is to reduce the number of times the glabella folds, giving the dermis time to recover.

In the dermis under the skin, collagen fibers are woven like a net to support the surface.

If the same contraction is repeated hundreds of times a day, this collagen is

continuously pressed in the direction of folding, and the fiber arrangement in the pressed area settles along that direction.

This is why vertical glabellar lines do not appear in a day or two but gradually become clearer.

When signal transmission stops for a while, the muscle's pulling force decreases,

and the frequency with which the skin folds in the same spot also decreases.

While the folding stimulation is reduced, the dermis escapes from the state of being only pressed

and gains time for recovery.

This is why I say that treatment for expression lines is closer to a task of buying time

rather than erasing a single line.

This action is temporary.

As time passes, the nerve endings regain their function,

and the muscle movement gradually returns to its original state.

Therefore, rather than finishing with one session, it is natural to repeat it at intervals

and observe the condition,

and that interval is set differently for each person depending on muscle thickness and expression habits.

Who is Hongdae glabellar Botox for?

Those who are concerned because their expression on the screen or in photos always remains a frowning impression

Those who feel that the vertical lines between their eyebrows have become clearer than before

Those whose glabella automatically gathers when concentrating or when dazzled by light

Those who want to start management in advance before expression lines become clearer

Those who want to tidy up their upper face impression, including the forehead and eye area

Types of Hongdae Botox

  • 👉 Botox is divided by area depending on which muscle's force is to be reduced, and glabellar Botox targets the muscles between the eyebrows.

  • Summarized below based on the Botox items currently operated at Cleor Clinic Hongdae Branch.

  • Which range is appropriate depends on the position of the eyebrows, the amount of forehead muscle usage,

  • and usual expression habits, so we determine the distribution after checking the movement during the consultation.

  • Side effects and things to know in advance about Hongdae glabellar Botox

👉 It is reported that most things to know in advance about Hongdae glabellar Botox are temporary reactions that subside over time.

⚠️ Precautions before and after Hongdae glabellar Botox procedure

❓ Frequently Asked Questions (FAQ)

Q. Does Hongdae glabellar Botox eliminate muscles?

No.

It is not a method of damaging the muscle itself or reducing its volume,

but a method of stopping the stage where neurotransmitters are released from the nerve endings for a while,

so that fewer signals reach the muscle.

As time passes, the nerve endings regain their function and movement returns.

Q. Does Hongdae glabellar Botox make the eyebrows heavy?

Rarely, you may feel that way.

The muscles that pull the eyebrows down and the muscles that pull them up are pulling in opposite directions, so if the distribution is skewed to one side,

the eyebrow height may change.

That is why we check the eyebrow height and forehead muscle usage during the consultation stage.

Q. If I get Hongdae glabellar Botox, won't my other expressions become awkward?

Toxin stays at the nerve endings around the injection point, and its range of action is limited.

Therefore, it is possible to selectively treat only the narrow area between the eyebrows and leave the muscles used for smiling or speaking alone.

Q. Does Hongdae glabellar Botox work on lines that remain even when I relax my face?

While it can approach parts stemming from facial movements,

lines that have already clearly settled have a different nature.

In such cases, we may also look into other directions such as fillers or collagen boosters.

Q. Is Hongdae glabellar Botox applied to men as well? It is applied.

However, since it is known that men tend to have thicker glabellar muscles, we do not apply it uniformly in the same way,

but check the movement separately and then determine the distribution.

Q. Can I have Hongdae glabellar Botox on the same day as the forehead or eye area?

Upper facial muscles move in conjunction with each other, so they are often looked at together.

However, if you have a strong habit of raising your eyebrows, we judge the forehead distribution differently,

so we divide the range during the consultation.

Hongdae glabellar Botox is a treatment that targets the final stage of signal transmission to the muscles between the eyebrows,

reducing the frequency with which the skin folds in the same spot for a while.

It is not a method of eliminating muscles but a method of allowing fewer signals to arrive,

and the range of action remains around the injection point, allowing for the selective treatment of narrow areas.

Even for the same vertical line, the eyebrow height, forehead muscle usage,

and the degree of remaining lines when the face is relaxed are all different, so the distribution is not fixed as one.

At Cleor Clinic Hongdae Branch, we check these parts directly during the consultation.

We also operate items that look at the upper face together, such as eye Botox or skin Botox,

so you can divide the range.

If you have been concerned about your expression on the screen, please feel free to have a conversation with us.

※ This content is for general information purposes, and changes may vary depending on the individual.

Please determine the exact diagnosis and whether to proceed with the procedure through a consultation with a specialist.

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