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Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong

Chang Dermatology Clinic · 강남구 삼성역 창피부과의원ㅣ피부과 전문의 6인 진료 · April 19, 2025

​ ​ ​ ​ Hello. This is Chang Dermatology, helping you open a window to confidence through skin science. ​ The cold winter has already passed, and warm spring weather is arriving. ​...

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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: Chang Dermatology Clinic

Original post date: April 19, 2025

Translated at: August 17, 2026 at 5:48 PM

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

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 1

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 2

Hello. This is Chang Dermatology, helping you open a window to confidence through skin science.

The cold winter has already passed, and warm spring weather is arriving.

When you are so busy that you lose track of how quickly time is passing, you may also become less aware of getting older year by year.

Then, one day, when you look in the mirror and notice suddenly increased fine lines or horizontal neck lines, you may feel the passage of time.

Today, we will tell you about the Rejuran skin booster, which can help improve signs of aging such as sagging skin and fine lines.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 3

Horizontal neck lines and fine lines on the face appear as the overall elasticity of the skin decreases because collagen in the dermal layer diminishes with age.

They can be affected by various factors, including ultraviolet rays, smoking, excessive drinking, and overly restrictive dieting. However, reduced collagen production within the skin has an even more direct effect.

Because this is difficult to improve through personal care alone, it is necessary to consider treatments such as Rejuran that can promote collagen production.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 4

Rejuran is a skin booster that promotes the production of the skin’s own collagen and activates its regenerative ability.

Rejuran ingredients are combined with hyaluronic acid and lidocaine, offering the major advantage of enhancing the effects while reducing discomfort.

Hyaluronic acid provides a dewy, hydrated effect, while lidocaine is a local anesthetic that helps reduce pain during the procedure.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 5

The main ingredient in Rejuran is a DNA fraction extracted from salmon, and you have probably already heard many times that salmon is good for the skin.

The PN ingredient extracted from salmon helps activate the skin’s regenerative ability and has the effect of increasing elasticity in the dermis and epidermis.

In particular, Rejuran is highly safe because it is a biocompatible substance, is a colorless and transparent liquid, and gradually breaks down within the skin.

There is no need to worry about the ingredients remaining in the skin and causing side effects, and many people choose it because it can improve wrinkles in a stable manner.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 6

Rejuran can be recommended for people concerned about horizontal neck lines, neck wrinkles, or fine lines on the face.

It can also be an effective option when you want care for skin elasticity and radiance, a hydrated dewy complexion, and anti-aging care at the same time.

It may also improve enlarged, sagging pores and can be recommended when makeup does not apply smoothly or seems to sit on the skin, or when an overall improvement in skin quality is needed.

It is an effective approach for achieving natural-looking, youthful, and beautiful changes without an artificial appearance, with limited discomfort and a stable treatment process.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 7

Rejuran treatments are recommended at least three times at four-week intervals.

Afterward, maintenance treatments are recommended every three months, although this may vary depending on each person’s skin condition, symptoms, and degree of aging.

At this time, it is most important to apply a customized solution at every stage, from diagnosis through aftercare, not just to the treatment intervals.

Horizontal neck lines are a sign of aging that can appear in anyone as they grow older, and they are difficult to improve through personal care at home.

In addition, because they are caused by the effects of collagen within the skin, please keep in mind that you need to choose a treatment that directly addresses collagen in order to achieve firm and taut skin.

Causes of Horizontal Neck Lines and How to Improve Signs of Aging with Salmon-Derived Ingredients — Dermatology Specialist in Samseong-dong image 8

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