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Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods?

Toxnfill Gangnam Main Branch · [톡스앤필 강남본점] 빠르고 쉬운 숏닥터의 참견 · June 9, 2025

​ ​ ​ ​ Laughter is a precious expression that brings happiness to our lives, but repeated facial muscle movements leave marks on the face over time. ​ ​ Especially as we get older...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Toxnfill Gangnam Main Branch

Original post date: June 9, 2025

Translated at: April 20, 2026 at 4:02 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 1

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 2

Laughter is a precious expression that brings happiness to our lives,

but repeated facial muscle movements leave marks on the face over time.

Especially as we get older, the lines that form whenever we make an expression gradually become fixed and remain there even when we are not smiling.

These are what we commonly call “nasolabial folds” and “mouth lines.”

These concerns naturally occur as part of the aging process, but with proper care, it is possible to slow their progression.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 3

Lines that appear when smiling,

why do they start to matter?

Anyone has probably looked in the mirror at least once and worried about the lines on their face. In particular, the lines that run from the nose to around the mouth when smiling, and the small wrinkles around the mouth, tend to become more noticeable with age.

What causes these changes? Over time, the proteins collagen and elastin in our face decrease, and as the skin folds repeatedly in the same place every time we make an expression, the elasticity in those areas gradually weakens. In addition, ultraviolet exposure, lifestyle habits, and genetic factors can accelerate these changes.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 4

Lines that deepen every time you smile,

their effect on our face

Wrinkles that appear when smiling are more than just a cosmetic issue; they also affect the overall impression of the face. These lines can make a person look older than their actual age, and sometimes create an impression of fatigue or even sadness when the face is expressionless.

  • Causes of nasolabial folds

| Repeated facial expressions: Using the same muscles continuously when smiling or speaking causes wrinkles to form in that area. Decreased collagen: The natural decrease in collagen and elastic fibers with age reduces surface elasticity. Changes in the fat layer: As the facial fat layer sags or decreases with age, the lines become more distinct. External factors: Ultraviolet exposure, smoking, and lack of hydration can accelerate these changes. Genetic factors: Family history also affects when these lines appear and how pronounced they become. |

  • Features of mouth lines

Structurally, the area around the mouth has a thin tissue layer, so signs of aging tend to appear earlier there. Because the lines around the mouth are in an area that moves a lot, they are constantly stimulated whenever you smile or speak in daily life. Over time, these repeated movements change the surface condition of that area.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 5

Care methods you can practice in daily life,

what are they?

To reduce the lines that appear when smiling, consistent daily care is important. This is not something that improves in the short term; it requires ongoing effort.

A basic home care method for improving expression lines is to maintain enough hydration and use sunscreen diligently. When the skin has sufficient moisture, it helps maintain surface elasticity, and protecting it from ultraviolet rays can minimize collagen damage.

In addition, regularly practicing facial massage or facial yoga to relax facial muscles can help relieve tension and improve blood circulation, which helps maintain a healthy surface condition. Regular sleep and a balanced diet also improve overall health, positively affecting the improvement of facial lines.

Using products that contain ingredients that help collagen production, or care products that include active ingredients such as retinol, is also an effective method. However, these products can be irritating depending on the individual’s condition, so it is important to find the right concentration and how to use them.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 6

Lifting procedure, Densiti lifting

The lines that appear when smiling,

what procedures can be used to manage them?

If deep lines that do not improve with daily care are a concern, you can consider various cosmetic procedures. Modern medicine offers several methods to improve these concerns.

  • Advantages of the Densiti procedure

The Densiti procedure is suitable for improving nasolabial folds and mouth lines caused by loss of facial volume. This procedure restores volume by injecting a substance into the layer beneath the surface and has the effect of naturally lifting sagging areas. In particular, by naturally filling in the area around the mouth and nose, it makes the lines less noticeable.

A feature of this procedure is that it can produce natural-looking results, smoothing the lines without making the face look overly swollen. It also allows you to feel an immediate change after the procedure and does not require a special recovery period, so it has the advantage of causing minimal disruption to daily life.

  • Changes gained through radiofrequency (RF) procedures

Radiofrequency (RF) procedures are another method that can help improve lines caused by facial expressions. This procedure works by using thermal energy to stimulate collagen production in the tissue and enhance surface elasticity. As the thermal energy from RF is delivered deep into the surface, it contracts existing collagen fibers and promotes new collagen production, helping improve overall firmness.

After the procedure, you can see gradual improvement, and its natural-looking change is a defining feature. In addition, because it is performed in a non-invasive or minimally invasive manner, recovery time is short and the return to daily life is quick.

  • Various approaches to injection therapy

Injection therapy is a method that can provide immediate improvement by using hyaluronic acid or other filler substances to fill in deep lines. This method smooths the lines without affecting the movements that occur when making facial expressions.

Depending on the individual’s condition and desired results, different types of fillers can be chosen, and the procedure is carried out according to each product’s characteristics. Immediate results can be confirmed after the procedure, and additional treatment can be received later if needed.

These procedures can be selected according to each person’s condition and preferences, and sometimes multiple procedures are applied together to achieve better results. However, because results vary from person to person, it is important to find the method that suits you through sufficient consultation before the procedure.

Gangnam Station Densiti: Smile Lines, Nasolabial Folds, and Mouth Lines—What Are Effective Care Methods? image 7

Conclusion

Nasolabial folds and mouth lines that appear when smiling are a natural phenomenon as we age, but with proper care and procedures, their progression can be slowed and improved. If you maintain consistent daily care and choose appropriate procedures when needed, it can help you maintain a healthy and lively impression.

The most important thing is finding the care method that suits you. Lines caused by repeated movement of the facial muscles vary from person to person, so a customized approach based on your own condition is needed. Do not be afraid to smile, and I hope you can express your smile confidently with proper care.

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Gangnam Station Densiti: Smile lines, nasolabial folds, and mouth lines—what are effective care methods?

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