Ilsan Rejuran Healer: How It Works and Treatment Intervals for Inner Dryness and Fine Lines

| When your skin keeps becoming rough and dry, and you feel the limitations of at-home care products

When you feel that at-home care products are no longer enough

There is a treatment that does more than simply replenish moisture—it helps restore the skin’s own ability to become healthy.

Rejuran Healer has attracted attention because it uses an ingredient extracted from salmon DNA to act directly on the dermal layer.

This article explains how Rejuran Healer works, which types of skin it may suit, and what to know before and after treatment.

Table of Contents

• Let’s take a proper look at what Rejuran Healer is

• Certain skin types are particularly well suited to Rejuran Healer

• When Rejuran Healer’s effects appear and how long they last

• Things you must follow after Rejuran Healer treatment

• Care options that may be considered alongside Rejuran Healer

Summary

Rejuran Healer works by delivering the biocompatible ingredient polynucleotide (PN) to the dermal layer, thereby supporting the skin’s own ability to recover.

Unlike a simple moisturizing treatment, it aims to improve the dermal layer.

It takes time for the effects to appear, and combining treatment with regular care can help maintain them for longer.

Because post-treatment precautions are also directly related to the results, it is a good idea to understand the care methods as well.

Let’s take a proper look at what Ilsan Rejuran Healer is

You may have experienced the feeling that your skin does not improve no matter what you apply to its surface.

Rejuran Healer is a treatment that directly injects an ingredient called polynucleotide (PN), extracted from salmon DNA, into the dermal layer of the skin.

When this ingredient reaches the dermal layer, it is known to help activate the skin’s own ability to recover. This means it works differently from simply adding moisture from the outside.

Unlike moisture delivery that remains only in the epidermal layer, it is characterized by helping support recovery in the deeper layers of the skin.

Point to check: If your skin keeps feeling tight or rough even though it seems moisturized, consider checking the condition of the dermal layer—the deeper structural layer within the skin.

Table 1 - Rejuran Healer

Category	Rejuran Healer
Target area	Dermal layer of the skin
How it works	Activates the skin’s self-recovery ability
Main ingredient	Polynucleotide (PN)
Duration	Relatively long-term improvement (however, this may vary by individual)

Certain skin types are particularly well suited to Ilsan Rejuran Healer

Although Rejuran Healer may be applied to various skin types, some people tend to notice its effects more significantly.

It tends to be well suited to skin with an imbalance between oil and moisture, or skin whose dermis has been damaged by external irritation or environmental changes.

It is known as a treatment that may also be applied to sensitive or reactive skin, but suitability can vary depending on the individual’s skin condition.

It may also be considered when someone wants to address multiple concerns at once, such as fine lines, enlarged pores, and redness.

Point to check: If skin problems recur frequently or you are concerned about both pores and fine lines, consider checking whether the dermal layer’s self-recovery ability—the skin’s regenerative function—has declined.

Table 2 - Summary of Skin Types Targeted by Rejuran Healer

Skin concern	Suitability of Rejuran Healer
Oil-moisture imbalance and dryness	Suitable
Sensitive skin that reacts easily to irritation	Apply after consultation
Recurrent skin problems and inflammatory skin	Apply after consultation
Combined concerns involving fine lines and enlarged pores	Suitable
Dermal damage caused by the external environment	Suitable

Although this treatment can be applied to various skin types, suitability may differ depending on the condition of the skin.

It is a good idea to first confirm with an experienced physician whether the treatment is appropriate for your skin condition.

When Ilsan Rejuran Healer’s effects appear and how long they last

Rejuran Healer works in a way that allows its effects to appear gradually over time rather than immediately after treatment.

Generally, it takes about 2–4 weeks to notice the effects, although this may vary depending on the individual’s skin condition.

The duration of the effects varies from person to person, and it is generally maintained through ongoing care.

In many cases, a basic treatment schedule consists of approximately three sessions at one-month intervals.

Point to check: If you were expecting an immediate change after treatment, keep in mind that collagen—the protein fibers that make up the dermis—takes time to regenerate.

Things you must follow after Ilsan Rejuran Healer treatment

Post-treatment care is more important than you may expect if you want to obtain the full benefit of the treatment.

It is best to avoid washing your face and applying makeup on the day of treatment, and you should also avoid touching or rubbing the treated area.

For about one week, it is recommended to avoid saunas, bathhouses, and strenuous exercise, as well as alcohol and smoking.

Using moisturizer and sunscreen diligently can also help protect the skin and support recovery.

Point to check: If you are continuing your usual routine after treatment, consider checking how much UV protection affects the maintenance of the treatment’s effects.

Care options that may be considered alongside Ilsan Rejuran Healer

Although Rejuran Healer alone may provide various effects, combining it with other care options may broaden the areas of improvement.

The care options to combine depend on the individual’s skin concerns and condition, so it is important to consult an experienced physician first.

Because Rejuran Healer helps support recovery in the dermal layer, additional care is often added based on this approach.

Point to check: If you feel that one treatment alone is not enough, consider checking whether sufficient intervals are being allowed between combined treatments in accordance with the skin’s recovery cycle.

Table 3 - Summary of Key Rejuran Healer Information

Item	Details
Main ingredient	Polynucleotide (PN)
When effects appear	2–4 weeks after treatment (individual differences apply)
Recommended treatment schedule	Three sessions at one-month intervals (individual differences apply)
Duration of effects	Varies by individual
Post-treatment precaution period	Approximately one week

This is a quick overview of the key information about Rejuran Healer.

Before treatment, it may also be helpful to use this table to first check whether the schedule fits your routine and lifestyle.

Q&A

Q1. Is Rejuran Healer the same as a “salmon injection”?

A1. Rejuran Healer is sometimes called a “salmon injection” because it uses polynucleotide (PN), an ingredient extracted from salmon DNA.

However, the ingredient composition and concentration may differ depending on the product and brand, so it is best to confirm the exact details before treatment.

Q2. My skin is sensitive. Is it okay for me to receive Rejuran Healer?

A2. The polynucleotides used in Rejuran Healer are known to be biocompatible ingredients.

However, suitability may vary depending on the individual’s skin condition, so a thorough consultation with an experienced physician should come first.

Q3. Will I see results after only one treatment?

A3. Some people notice a certain degree of change after one treatment, but three or more sessions are generally recommended for the effects to become sufficiently established.

However, this may vary by individual.

Because skin recovery is a process that becomes apparent over time, it is more realistic to approach it from the perspective of consistent care rather than short-term results.

Q4. Are the treatment effects permanent?

A4. Rejuran Healer is not a permanent treatment, and the duration of its effects varies by individual.

It is common to maintain the effects with additional treatment when they begin to diminish.

Q5. Can Rejuran Healer also help with elasticity or pores?

A5. Rejuran Healer is known as a treatment from which various effects may be expected, including improvements in fine lines, pores, and skin elasticity.

It is often chosen when someone wants to improve multiple skin concerns rather than a single concern.

Conclusion

Rejuran Healer is a treatment that works by supporting the skin’s self-recovery ability in the dermal layer, going beyond simple moisture replenishment.

To obtain the full benefit, consistent treatment intervals and post-treatment care should be carried out together.

It is recommended that you first have a thorough consultation with an experienced physician to determine whether it suits your skin concerns and lifestyle before making a decision.