Gangnam nasolabial fold filler, for when lines around the mouth remain even when not smiling

October 16, 2026

Hello.

I am Director Jung-Hwang Information of Cleor Clinic Gangnam Branch.

Have you ever stared at a newly taken ID photo for a long time?

Even when you aren't smiling, there are days when the lines running from the sides of your nose to the corners of your mouth

are captured so clearly that your expression in the photo looks heavier than it is in reality.

In consultations, I often hear people say that when they look at their face in the mirror with their expression completely relaxed, those lines remain like marks.

When lines that only appeared when making expressions start to become visible even when your face is expressionless,

it is often necessary to look for the cause in areas other than the mouth.

Today, I will explain what Gangnam nasolabial fold filler is, why the anatomy of this area and the choice of formulation

are discussed together, and I will summarize the points you should know in advance and precautions.

What is Gangnam nasolabial fold filler?

👉 Gangnam nasolabial fold filler is a treatment that involves injecting a hyaluronic acid product into the nasolabial fold, which runs from the side of the nose to the corner of the mouth,

to replenish lost volume and gently adjust the height difference between the upper and lower mid-face.

The nasolabial fold is closer to a boundary line where the cheek fat layer meets the tissue around the mouth, rather than a wrinkle engraved into the skin.

The cheek fat layer of the face is divided into several compartments,

and as these compartments lose volume and sag with age,

the upper part becomes thinner and tissue accumulates in the lower part.

The nasolabial fold is the shape of the drop-off created between them, appearing as a furrow on the surface.

Therefore, there are two types of approaches for this area.

One is an approach that gently fills the furrow itself in a shallow layer to reduce the drop-off,

and the other is an approach that supports the sagging cheek fat layer from a deep layer above to address the cause of the furrow.

Even for the same nasolabial fold, the distribution of these two approaches varies, so we do not judge based solely on the depth of the line.

The hyaluronic acid used here is a hydrophilic polymer that also exists in the dermis and joints of our body.

Due to its molecular structure, it attracts and holds water molecules several times its own weight.

Therefore, it maintains its volume at the injected site.

The strength of using nasolabial fold filler with a choice of formulations

👉 You can choose a formulation with properties that change according to the degree of cross-linking, tailored to the injection layer.

First, the viscoelasticity of the formulation can be selected according to the layer.

Hyaluronic acid chains are connected to each other through cross-linking to form a network structure.

The denser this cross-linking, the firmer the formulation that resists external force and maintains its shape,

and the looser it is, the softer the formulation that spreads well and settles smoothly.

A deep layer that needs to support the cheek fat layer from below requires properties that maintain shape,and a shallow layer close to the skin requires soft properties that do not leave a lumpy feeling on the surface.

Even within one area, the required physical properties differ depending on the layer. This is a characteristic of the nasolabial fold section.

Second, it can be addressed by dividing the injection layer and path.

The facial artery and its branches pass around the nasolabial fold,

and the depth and location of the path are not the same for everyone.

Therefore, in this area, we distinguish between the deep layer near the bone and the shallow layer just below the skin,

and we also use a method of moving along the layer with a blunt-tipped cannula.

Depending on which layer you pass through and where you place it, the appearance on the surface and safety change together.Third, there is room for adjustment even after injection.

Hyaluronic acid can be induced to decompose with an enzyme called hyaluronidase.

This means that if the shape is different from what you expected or if you need to re-adjust the left-right balance, it can be reversed.

Therefore, we do not inject a large amount from the beginning, but can divide and distribute it.

I will be honest about one thing.

If your skin is at a stage where it is significantly stretched and folded, there will be parts that are difficult to address with volume replenishment alone.

Since filler is a treatment that reduces the drop-off by filling the sunken area on the spot,it is accurate to approach it with its original strengths.

The principle of how nasolabial fold filler works

👉 Nasolabial fold filler is a formulation with physical properties tailored to the area where volume has been lost, going against the structure where the drop-off occurred.

When the volume of the cheek fat layer decreases, the force supporting the upper part weakens, and the remaining tissue sags downward.

The sagging tissue stops where the muscles around the mouth are attached,

and the surface folds at that boundary, deepening the furrow.

Therefore, if you first restore the upper support, the weight applied to the lower part is distributed, reducing the burden on the furrow.

The injected hyaluronic acid attracts surrounding moisture and holds it within the network structure,

occupying that much volume and pushing up the sunken surface.

The firm formulation placed in the deep layer supports the upper tissue like a pillar.

The soft formulation placed in the shallow layer fills the drop-off of the remaining furrow, lightening the shadows created by light.

Over time, enzymes in the body slowly decompose the hyaluronic acid.

Therefore, you can re-adjust the amount and location over time while observing the condition,

and it is also suitable for adjusting to the facial arrangement that changes with age.

Procedure method and composition

👉 We inject the hyaluronic acid product into the furrow next to the nose and the surface above it in a divided manner.

The composition varies depending on the domestic or imported line and the areas viewed together.

The design filler at Cleor Clinic Gangnam Branch is divided into lines based on the injection site.

The nasolabial fold section is included in the facial filler range, and if the upper mid-face is also sunken, we look at the forehead and temple range together.

When shadows under the eyes appear continuous, we set the under-eye hollow range separately.

Products are divided into domestic and imported.

Because the denser the cross-linking, the more it maintains its shape, and the looser it is, the better it spreads, we choose the product to be placed in the deep layer and the product to be placed in the shallow layer separately even within the same area.

We also include a filler dissolving item in case the shape needs to be re-adjusted.

The product chosen and the layer injected are not the same when supporting the upper part as when only filling the furrow.

We will summarize the extent to which we will look at it together during the consultation, first looking at the drop-off that remains when you relax your expression.

Recommended for those who:

Are bothered by lines next to the nose that remain like marks even when relaxing their expression

Feel that their mid-face looks sunken in side or three-quarter angle photos rather than from the front

Feel that the upper part of their cheeks is thinning while only the lower part looks heavy

Tend to have foundation settle into the lines around their mouth even after applying makeup

Want to tidy up their impression to look less tired rather than seeking a major change

Types of Gangnam fillers

👉 Cleor Clinic Gangnam Branch operates filler lines divided by area and purpose.

We determine which range is appropriate by looking at the remaining degree of the cheek fat layer, skin thickness,

and the way the lines fold when making expressions.

In cases where skin sagging is also present, we also consider whether to combine it with treatments with different directions such as Ultherapy Prime, Thermage FLX, or thread lifting.

Reactions that may occur and points to note

If you are pregnant or breastfeeding, have inflammation or skin disease in the area to be injected,

  • or have previously injected other products in the same area,

  • we check your condition first during the medical examination stage.

  • ⚠️ Precautions before and after the procedure

  • ❓ Frequently Asked Questions (FAQ)

  • Q. Can it be injected even if the lines are deep?

A. The more important judgment criterion is how much cheek fat layer remains rather than the depth of the line,

and if the method of only filling the furrow is not appropriate, we also look at the upper support.

Q. What kind of formulation do you use?

A. We use formulations with dense cross-linking that maintain shape and formulations that are loose and spread softly, divided according to the layer,

and we determine the distribution by looking at skin thickness and injection depth.

Q. Can it be reversed if I don't like it?

A. It is known that hyaluronic acid products can be induced to decompose with hyaluronidase,

but since the judgment varies depending on the condition, it is necessary to check during the medical examination.

Q. Can I do filler and lifting treatments together?

A. The direction of replenishing volume and the direction of pulling sagging are different in purpose,

so they are often looked at together, and the order and interval are divided according to the skin condition.

Q. Can I go out immediately on the day of the procedure?

A. Since it is an area that can be covered with a mask, returning to daily life is relatively easy,

but it is more comfortable to schedule important events like photo shoots with some leeway.

Q. How much is the pain?

A. Many people describe it as a pressing feeling using a thin needle or cannula,

and if you are sensitive to pain, please let us know in advance during the medical examination.

The nasolabial fold may look like a single line around the mouth, but in reality, it is closer to the shape of a boundary created by the sagging of the cheek fat layer appearing on the surface.

Gangnam nasolabial fold filler has strengths in filling that drop-off with physical properties suitable for the layer, and if necessary,

supporting it from above to re-adjust the weight distribution of the upper and lower face.

Even for the same nasolabial fold, the degree of remaining cheek fat layer, skin thickness,

and the way it folds when making expressions are different, so the injection layer and amount must be precisely set to fit the face.

We will check these parts directly during the consultation.

Cleor Clinic Gangnam Branch operates treatments that can look at the mid-face impression together, such as the full line of fillers, Ultherapy Prime, Thermage FLX, thread lifting,

and Rejuran series skin boosters.

If you have any questions, please feel free to ask.

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

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

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