
As skin ages, its elasticity decreases,
and its recovery speed from external irritation noticeably slows down.
In particular, in areas with a lot of urban stress,
such as around Ahyeon, Gongdeok, and Chungjeongno,
the skin barrier can weaken easily,
and fine lines, dryness, and sensitivity
often appear at the same time.
In these cases, the representative regenerative treatment
people continue to seek is Rejuran (PN).
Rejuran is not simply a treatment that adds moisture or
smooths the surface;
it is often recommended by specialists
because it is a treatment-centered approach that
helps create an environment in which the skin can recover on its own.

How Rejuran (PN) Works — Why Is It Specialized for Regeneration?
The main ingredient in Rejuran is
polynucleotide (PN),
which is extracted from salmon DNA and processed into a form
that can be safely applied to the human body.
The way PN works in the skin is as follows.
- Promotes recovery of damaged dermal cells
— Stabilizes minor inflammatory reactions and helps the dermal layer function healthily again.
— Stimulates the cells that produce collagen, elastin, and ECM (extracellular matrix), strengthening the skin structure.
- Restores the skin barrier
— Effective in easing chronic dryness, excessive melanin response, and frequent redness.
Because of these mechanisms,
Rejuran is evaluated as a “recovery-centered functional treatment,”
and it is more suitable for those whose goal is
improving the skin’s overall condition rather than short-term cosmetic purposes.

Why People Seek Rejuran at Ahyeon Dermatology
The Ahyeon area is one of the districts with a large inflow of people,
not only residents but also office workers and university students,
so skin types vary widely.
As a result, it is also an area where many people visit with skin that is “sensitive to irritation but slow to recover.”
The typical situations in which Rejuran is recommended during a specialist consultation are as follows.
-
When the skin becomes easily red after frequent breakouts
-
When pores appear enlarged due to decreased elasticity
-
Chronic dryness that is difficult to recover from with basic skin care alone
-
Skin where fine lines are easily visible when applying makeup
-
Skin that feels like it recovers poorly after laser treatment
In other words, rather than for simple cosmetic purposes,
Rejuran is often chosen when someone wants to
"calm tired skin and improve its fundamental recovery ability."

Treatment Process and Customized Planning
From a specialist’s perspective, Rejuran loses effectiveness if it is performed in a "uniform pattern."
The injection design must vary depending on skin thickness, elasticity level, and the degree of damage.
The generally recommended schedule is as follows.
However, the plan may vary depending on the following factors.
-
Degree of skin barrier damage
-
History of previous laser/filler procedures
-
Dermal thickness and collagen density
-
Sensitive skin or not
-
Recovery speed

Post-Treatment Care — Optimizing the Recovery Period
Rejuran is relatively low in irritation, but because it is a treatment that promotes "regeneration,"
aftercare is important.
- Sun protection is essential
Ultraviolet rays interfere with dermal regeneration.
→ SPF 30–50 / Reapplication every 3–4 hours recommended
- Maintain hydration and moisture
You may feel dryness after Rejuran injection.
→ Use calming and hydrating product lines as the main focus
- Minimize irritation
Peeling, scrubs, hot saunas, and intense exercise should be restricted for 3–5 days
→ Minimize the possibility of inflammation
- Small raised bumps (embossing) are a natural absorption process
They usually disappear normally within 24–72 hours.
If needed, a specialist can combine regenerative laser treatment, calming care, and other measures
to help recovery proceed more quickly and stably.

Who Needs Rejuran?
At Ahyeon Dermatology, satisfaction with Rejuran is especially high in the following cases.
-
Improving inner dryness
-
Strengthening a sensitive, red, and itchy skin barrier
-
Concerns about reduced elasticity and fine lines at the same time
-
Skin that becomes easily sensitive due to repeated breakouts
-
When overall skin texture improvement is needed
-
Enlarged pores and skin that is not smooth
-
Skin with slow recovery after a specific laser treatment
-
When a natural and gradual improvement is desired
In other words, this is not a treatment you choose because you expect a dramatic visible change,
but because it is a "treatment that strengthens the skin’s fundamental capacity."
That is the core of Rejuran.

Customized Planning Based on Specialist Care Is Key
The result of Rejuran is not determined simply by the product’s performance.
The most important factor is the specialist’s skin diagnosis, design, and ability to control the depth of injection.
If you want steady skin improvement in Ahyeon,
it is much more stable in the long term, and the results are more clearly seen,
when the procedure is carried out through a specialist’s systematic analysis and customized planning rather than one-time care.
Because Rejuran is a treatment that revives the skin’s natural recovery mechanism,
it is a procedure that even those with weak or sensitive skin can try without much burden.











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