Rejuran: I don't expect much round one.

Why so many “meh” reviews after one Rejuran session, and how results shift session by session.

Published -

May 6, 2026

Updated -

Sep 15, 2026

Author

Wi Young-jin · Chief director

Seoul National University College of Medicine · Seoul National University Hospital Specialist

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Rejuran reviews: honestly, I also

don’t expect much from the first session

As spring arrives, the clinic starts to fill with people looking to calm skin troubled by seasonal changes.

"I came after reading Rejuran reviews, but some people said one session wasn’t great,

so I’m unsure"

There are so many people who say this.

Today I’ll explain why, step by step.

The key difference that sets Rejuran apart from other skin boosters

Rejuran is a regenerative treatment that injects PN extracted from salmon

to promote recovery of damaged cells.

Unlike hyaluronic acid treatments that instantly add volume,

Rejuran is closer to “repairing” the skin.

So it is definitely not the kind of treatment where you look in the mirror the next day

and say, “Wow, I look better.”

Why are there so many reviews saying it’s “not that great”

after just one session?

"The reason Rejuran 1-session reviews
are often negative is clear.

PN is a cell-repair treatment, not an instant-effect one,
so pores and fine wrinkles become noticeably different
from the third session onward."

— Dr. Wi Young-jin (Beautystone Clinic, Hongdae)

It takes at least 4–6 weeks for cells to produce new collagen.

That cycle needs to be repeated 3–4 times

before visible changes finally appear on the surface.

Clinically, sessions 1–2 mainly improve skin texture,

and real changes begin from the third session.

People who feel disappointed after just one session and leave a review

are, in fact, evaluating it too early.

Rejuran:

the anesthesia and results that feel right for you

Please check the guide based on your concerns.

Client type	Recommendation	Anesthesia option
Concerns about pores, fine lines, and skin texture	Best suited (4 sessions recommended)	Cream anesthesia for 30 minutes + cooling
Acne marks and redness	Recommended (H/HB line)	Adequate cream anesthesia
Instant volume and lifting	Not recommended (other treatment better)	-
Sensitive to pain	Possible (use caution around the eye area)	Cream anesthesia for 50 minutes + cooling

The reason Rejuran pain reviews vary so much is

the difference in anesthesia time and

the injector’s pace.

For patients who are concerned about pain,

I provide enough anesthesia for up to 50 minutes

to make it manageable.

The three questions people ask most after reading Rejuran reviews

Q1. What are the reviews that say they saw results in just one week?

That is more likely a temporary brightening caused by the microneedling injections

than a true effect of Rejuran itself.

The real collagen effect from PN appears after 3–4 weeks,

and you need the cumulative effect of the third session to feel it.

Q2. How long does it last after the full 4-session course?

On average, the effect lasts about 6–9 months.

In people in their early 30s, it can last close to a year,

while in the late 40s it may gradually start to fade after around 6 months.

After that, a maintenance session every 6–12 months

is best.

Q3. I’ve also seen reviews saying bruising or marks last a long time—

is that true?

Because the treatment involves multiple injections into the dermal layer,

minor bruising can occur.

It usually fades within 3–5 days, but if you want to prevent it,

avoid taking omega-3 or vitamin E for a week before the procedure.

Following this alone can significantly reduce bruising.

If you take away just one thing today

— Rejuran reviews must be

read by session number.

Reviews after the first and fourth sessions are

almost like different treatments.

In the next post,

I’ll explain how to time booster treatments after four Rejuran sessions.

This is Dr. Wi Young-jin.

Frequently asked questions

Q. What are the reviews saying about seeing results in just one week?

A. That is more likely a temporary tone-up caused by the microneedle injection stimulation rather than an effect of Rejuran itself.

Q. How long does the maintenance period last after a full 4-session course?

A. On average, the results last about 6 to 9 months.

Q. I’ve also seen reviews saying that bruising or marks last a long time. Is that true?

A. Because it is injected multiple times into the dermis, minor bruising may occur.

Q. I've seen many reviews mentioning bruising after Rejuran. Are there any ways to minimize bruising?

A. To help minimize bruising, we recommend avoiding Omega-3 and Vitamin E supplements for one week prior to your procedure. Since the treatment involves multiple micro-injections into the dermis, some minor bruising may occur, but this typically fades within 3 to 5 days.

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