AI-translated archive post

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything.

You&I Clinic Hongdae Sinchon · 닥터다람의 예뻐지는 피부비결 · December 23, 2025

Sinchon Rejuran: Effects? Pain? Frequency? I’ll tell you everything. ​ ​ “I'm really worried about Rejuran pain.” “I’m curious whether it really reduces fine lines.” ​ ​ These days...

AI translation notice

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: You&I Clinic Hongdae Sinchon

Original post date: December 23, 2025

Translated at: April 20, 2026 at 1:33 PM

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

Sinchon Rejuran: Effects? Pain? Frequency?

I’ll tell you everything.

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 1

“I'm really worried about Rejuran pain.”

“I’m curious whether it really reduces fine lines.”

These days, especially during the cold winter, many people may be concerned because skin elasticity noticeably drops.

Because of this, more and more people have recently been looking for skin booster procedures that help improve skin elasticity and skin texture.

Among them, Rejuran is a procedure that is consistently mentioned, but many people probably still worry about whether it is actually effective and how painful it is.

Although it is known to be good for skin regeneration, it is also a procedure that can easily raise questions because explanations are often lacking about how fine lines improve

and by what mechanism those improvements happen.

So today, we’ll organize everything step by step, from Rejuran’s effects to pain and the points to consider during the procedure.

Sinchon Rejuran

  • What is the principle behind Rejuran?

  • Is the pain really severe?

  • Can you get it anywhere?

Sinchon

What is the principle behind Rejuran?

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 2

To understand the principle behind Rejuran, it is first necessary to look at why fine lines form.

Many people think the cause of fine lines is simply aging,

but if you look more closely, the key cause is that collagen and elastin in the dermis decrease, weakening the structure that supports the skin itself.

When this structure loses its strength, the skin gradually sags and folds, and as these changes repeat, they eventually remain as fine lines.

Rejuran can be seen as a procedure that increases the elasticity and regenerative capacity of this skin structure.

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 3

The key ingredient in Rejuran is PN (polynucleotide), a DNA fragment extracted from salmon.

When this ingredient is injected into the dermis, it stimulates fibroblasts and induces collagen production.

As a result, the structure that supports the skin gradually becomes firmer, elasticity can be restored, and fine lines may appear softer.

In this sense, Rejuran is different from a filler, which immediately adds volume to wrinkles.

Rather than physically filling in volume, it aims for gradual improvement by boosting the skin’s own regenerative ability.

Collagen production usually takes about 2 to 4 weeks, and based on 3 to 4 treatment sessions, the effects may last for about 6 to 12 months.

Sinchon Rejuran

Is the pain really severe?

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 4

The biggest concern before Rejuran treatment is pain.

Since it is injected into the skin point by point using a needle, it is true that a certain level of pain can be felt.

Because of this, quite a few people hesitate to undergo the procedure.

If this pain is burdensome, Rejuran HB can be considered as one alternative.

Rejuran HB stands for “Hydro Booster,” and it is a formulation that includes hyaluronic acid along with the existing PN ingredient.

Thanks to this, it has the advantage of offering skin regeneration effects along with hydration, improved elasticity, and the so-called dewy-glow effect.

It also contains lidocaine, an anesthetic ingredient, so it is known to cause less pain compared to the existing Rejuran Healer.

Sinchon Rejuran

Can you get it anywhere?

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 5

Some people may think of Rejuran simply as a procedure that injects ingredients, but in reality, it involves quite a few factors that need to be considered.

First, the injection depth is important.

Skin boosters like Rejuran are procedures that target the dermis, and they must be injected accurately into the dermis, where collagen production takes place, to achieve the proper effect.

If the injection is too deep or too shallow, the ingredients may not work sufficiently, and you may feel that the effect is reduced.

Also, the medication needs to be injected densely and evenly so that it spreads uniformly and collagen production occurs throughout the area; the higher the density of injection points, the higher the overall satisfaction can be.

Therefore, it is important to choose a dermatology clinic that performs the procedure based on anatomical understanding.

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 6

Next is the dosage.

To properly see the effects of Rejuran, the dosage needs to be selected according to the individual’s skin condition and the area of concern.

If you want improvement focused on specific areas such as around the mouth or cheeks, about 2 cc may be sufficient, but if sagging is severe or you want to improve elasticity across the entire face, a dosage of around 4 cc may be recommended.

Since the appropriate dosage can vary depending on skin thickness and the degree of aging, it is best to decide through careful consultation.

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 7

Sinchon Rejuran is a procedure that helps restore elasticity to skin structure weakened by aging.

PN ingredients stimulate collagen and elastin production in the skin, so improvement in fine lines and skin texture can be expected,

but since there are many factors to consider carefully, such as injection location and dosage,

it is most important to receive the procedure carefully at a dermatology clinic with experience and know-how.

Thank you. This was Hongdae Sinchon U&I^^

< The story of the Hongdae Sinchon branch built over 10 years >

< Hongdae Sinchon U&I Clinic Hours >

Weekdays: am 10:00 ~ pm 08:00

Saturday: am 10:00 ~ pm 05:00

(Consultation without lunch break)

< Directions >

U&I Clinic Hongdae Sinchon Branch is

located near Hongik University Station.

Sinchon Rejuran: Effects? Pain? Frequency? I’ll Tell You Everything. image 8

Continue browsing

Keep exploring this clinic's public source trail

Return to the source archive for more translated posts, or open the Korean clinic profile to compare other public channels.