Rejuran Before and After: What I Honestly Tell Patients — A Gangnam Doctor's Guide
Dr. Hyunji Kim
2026-07-038 min read
When patients ask me about Rejuran before and after, they usually expect a dramatic overnight glow — and I gently reset that. Rejuran is one of my favorite skin boosters precisely because it doesn't fake a result; it slowly rebuilds the quality of your skin so that in a few weeks you look like a better-rested, healthier version of yourself.
I'm Dr. Hyunji Kim, director at Delphic Clinic in Gangnam. I've treated a lot of tired, sun-stressed, over-exfoliated skin with Rejuran, and I want to give you the honest version — what a polynucleotide injection actually does, who it truly suits, and what your before and after can realistically look like.
What Rejuran actually is — in plain language
Rejuran is a skin booster made from polynucleotides (PN, sometimes called PDRN) — purified DNA fragments derived from salmon. Injected as micro-droplets into the skin, they act like a repair signal: calming inflammation, improving hydration, and nudging your own fibroblasts to make more collagen and elastin. The result is skin that's smoother, more elastic and more resilient — improved from the inside, not covered from the outside.
Here's the honest note on what Rejuran isn't: it's not a filler and won't sculpt cheeks or a jawline, it's not a lifting device, and it won't erase deep folds or fix loose skin. If you want volume or a lift, Rejuran is the wrong tool — and I'll tell you so.
Who Rejuran is really for
Rejuran shines for skin quality rather than shape. It tends to suit:
- People with dull, dehydrated or tired-looking skin who want a healthy glow
- Fine lines, crepey texture and early aging — especially around the eyes and cheeks
- Enlarged pores and rough, uneven texture
- Sensitive, easily-irritated or barrier-damaged skin that needs calming and repair
- Anyone who wants a natural, gradual improvement with almost no downtime
And who I steer elsewhere: if your main concern is sagging or volume loss, I'll point you toward lifting or filler instead. If you're pregnant or breastfeeding, have an active skin infection, or a known salmon/fish allergy, Rejuran isn't appropriate. A good clinic should tell you when a treatment won't deliver what you're picturing.
How Rejuran compares — an honest comparison
Rejuran is often confused with hydrating skin boosters and fillers. They overlap a little but do genuinely different jobs — here's how I explain it.
In short: Rejuran improves skin quality, HA skin boosters add hydration, filler adds volume, and only surgery addresses significant sagging. They're teammates, not rivals — and many of my patients combine Rejuran with a hydrating booster.
Rejuran before and after: what's realistic
Be patient with the before and after. Rejuran works cumulatively — you won't leave the clinic transformed. Most patients notice skin feels calmer and more hydrated within the first 1–2 weeks, and the real payoff — smoother texture, softer fine lines, brighter and more even skin — builds over the full 3–4 session course. Your results depend on your starting skin, age, sun history and how well you protect your skin afterward, so no two before-and-afters look identical.
Get a free 1:1 consultation
Message our English-speaking team — same price as locals, no pressure.
What to expect — step by step
- 1
1. Free consultation
We assess your skin, discuss your goals, and decide whether Rejuran, a hydrating booster, or a combination fits — with honest expectations set upfront.
- 2
2. Numbing & prep
We cleanse and apply strong numbing cream for about 20–30 minutes so the session is comfortable.
- 3
3. The session
Rejuran is injected as tiny micro-droplets across the treatment area. It usually takes 15–20 minutes. You may feel small pinches and see temporary bumps.
- 4
4. Back to your day
Bumps typically flatten within a few hours; any small bruises fade over a day or two. Most people sightsee or return to work the same day.
- 5
5. Results build over weeks
Skin improves gradually between sessions. A course of 3–4, spaced 2–4 weeks apart, gives the most visible before and after.
How we do Rejuran at Delphic — and why it matters
Rejuran is doctor-led here — I or a physician plan the depth, spacing and product (Healer, I, HB or S) based on your skin, not a fixed template. We use only genuine Rejuran, and technique matters: even micro-droplet placement is what gives smooth results without lumps or unnecessary bruising. Comfort options and interpreter support are part of every session.
I came in during a short Seoul trip and got Rejuran. The consultation was genuinely honest — they explained exactly what to expect and didn't oversell. English interpreter made everything easy, and my skin looked noticeably fresher within two weeks.
How much does Rejuran cost in Korea?
Rejuran pricing depends on the product type and volume, not on where you're from. Here are our genuine prices:
| Rejuran Healer 2cc | ₩350,000$250 |
| Rejuran I 1cc | ₩250,000$180 |
| Rejuran HB 1cc | ₩300,000$220 |
| Rejuran S 1cc | ₩300,000$220 |
Coming from overseas? Here's how we make it easy
We're a one-minute walk from Sinnonhyeon Station Exit 3, with on-site English and Chinese interpreters so nothing gets lost in translation. Rejuran is one-day friendly — consultation and treatment can happen in a single visit, and with minimal downtime you can carry on with your Seoul plans the same day. Same price for locals and visitors, always.
Start with a free 1:1 consultation
The best way to know if Rejuran fits you is a proper look at your skin. Our 1:1 consultation is free and no-pressure — if Rejuran isn't right for your goals, I'll tell you honestly and suggest what is.
Get a free 1:1 consultation
Message our English-speaking team — same price as locals, no pressure.
Rejuran won't reinvent your face — but it will help your skin look genuinely healthier, calmer and more resilient over time. If that's the before and after you're after, come in and let's plan it properly. — Dr. Hyunji Kim, Delphic Clinic, Gangnam, Seoul.
Frequently asked questions
Does Rejuran hurt?
There's some stinging — Rejuran is naturally a bit acidic, so it can feel like tiny pinches as it goes in. We apply strong numbing cream first, and many patients also choose Rejuran Healer HB or add lidocaine-mixed versions for comfort. Most people describe it as very tolerable, not painful.
How long do Rejuran results last?
After a course of 3–4 sessions spaced 2–4 weeks apart, results typically hold for around 6–12 months. Rejuran isn't a filler — it improves skin quality, so most patients top up once or twice a year to maintain the effect.
How does Rejuran compare to Skinbooster (Juvederm Volite) or fillers?
Rejuran is a polynucleotide (PN/PDRN) that stimulates repair and collagen — it improves texture, fine lines and resilience over weeks. Hyaluronic acid skin boosters mainly hydrate and plump. Fillers add volume and structure. They solve different problems and are often used together.
Is there downtime with Rejuran?
Minimal. You may see tiny injection bumps and small bruises that settle within a few hours to a couple of days. Most patients return to work or sightseeing the same day, with light makeup after 24 hours.
How many Rejuran sessions do I need?
Usually 3–4 sessions, 2–4 weeks apart, for a first course. Skin thickness, age and your goals change this — we decide the exact plan at your free consultation.
How much does Rejuran cost in Korea?
See the prices in the article — Rejuran Healer, Rejuran I, HB and S each have their own price. It's the same price for locals and visitors at Delphic, with no foreigner mark-up.
Written by
Dr. Hyunji Kim
Dr. Hyunji Kim is the director and lead physician at Delphic Clinic in Gangnam, Seoul. She trained at Korea University Medical Center and personally performs consultations and procedures for both local and international patients.
