Rejuran Korea: How I Rebuild Skin Quality From the Inside — A Gangnam Doctor's Honest First-Timer's Guide
Dr. Hyunji Kim
2026-07-288 min read
Rejuran korea is one of the treatments international patients message me about most — usually after seeing 'rejuran before and after' photos online and wondering whether the glow is real. It is, but not in the way filler ads promise. Let me explain what it actually does before you book anything.
I'm Dr. Hyunji Kim, director at Delphic Clinic in Gangnam. I've treated a lot of skin with Rejuran — locals, tourists on a tight schedule, patients who'd already tried everything. This is the honest first-timer's guide I wish more people read before they fly in.
What Rejuran actually is — in plain language
Rejuran is a series of micro-injections of PDRN — polydeoxyribonucleotide, a purified DNA fragment (from salmon) that signals your skin to repair itself. Think of it as a 'skin healer' rather than a filler. Over a few weeks it supports collagen and elastin, calms inflammation, and improves how your skin behaves: smoother texture, softer fine lines, better elasticity, and that healthy 'lit-from-within' quality people mean by skin quality. There are a few versions — Rejuran Healer (the classic PDRN), Rejuran HB (with added hyaluronic acid for hydration), Rejuran S (for deeper acne scars and specific areas), and Rejuran I for the delicate under-eye.
Here's what Rejuran is NOT: it's not a filler, so it won't add cheek volume or reshape a jawline. It's not a laser, so it won't zap pigment or broken capillaries. And it's not a magic one-session fix. If you want instant, dramatic contour change, Rejuran alone will disappoint you. It's a slow, foundational upgrade to the skin itself.
Who Rejuran is really for
Rejuran shines for people whose complaint is skin quality, not shape. In my chair, the best candidates are usually:
- People in their late 20s to 50s who feel their skin looks 'tired,' dull or crepey even with good skincare.
- Those with fine lines, rough texture or enlarged pores who want a natural, no-volume refresh.
- Patients with under-eye crepiness and dark shadows caused by thin, poor-quality skin (Rejuran I is designed for this).
- Anyone recovering from acne who has shallow scarring and uneven texture (often Rejuran S).
- Busy travelers who want a real result with almost no downtime on a short Korea trip.
Who I steer elsewhere: if your main issue is deep folds or lost volume, you want filler. If it's sagging and jawline laxity, we talk about lifting instead. If it's redness, melasma or sun damage, laser or specific pigment treatment comes first. And if you're pregnant, breastfeeding, or have a salmon/fish allergy, Rejuran isn't for you — I'll say so at consultation.
How Rejuran compares — an honest comparison
The question I hear constantly is 'Rejuran vs skin booster vs filler — which one?' They're not really competitors; they fix different things. Here's how I frame it.
In practice I often combine Rejuran with a hydrating booster or careful filler — Rejuran builds the canvas, the others do their specific jobs. It's rarely an either/or.
Before and after: what's realistic
Be honest with yourself about the timeline. Rejuran works on your biology, so you won't walk out transformed. Most patients notice smoother, more hydrated skin around 2–4 weeks after the second session, with texture and fine-line improvement building over the full course. Results are subtle and cumulative — the 'you look well-rested, did you change something?' kind, not the 'you look like a different person' kind. Individual response varies a lot with age, skin condition and how consistent you are.
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 look at your skin under good light, talk through your goals and history, and I tell you honestly whether Rejuran is right — and which formula. If something else suits you better, I'll say so.
- 2
2. Numbing & prep
We cleanse and apply numbing cream for about 20–30 minutes so the injections are comfortable.
- 3
3. The session
I place a series of tiny PDRN injections across the treatment area. It takes roughly 15–20 minutes. You'll feel small stings — over quickly.
- 4
4. Back to your day
Small bumps settle within a few hours to a day. You can wear light makeup the next day and continue your Seoul plans — it's designed to be one-day friendly.
- 5
5. Results build over weeks
Skin quality improves gradually. We space sessions 2–4 weeks apart, then plan maintenance every 3–6 months.
How we do Rejuran at Delphic — and why it matters
Rejuran is doctor-led here, start to finish. I choose the formula and injection depth for your skin — under-eyes, acne scars and full-face all need a different hand — and I use genuine, properly stored Rejuran product. That last point matters more than people realize: with an injectable this popular, sourcing and technique are exactly where corners get cut. We don't.
How much does Rejuran cost in Korea?
Rejuran cost in Korea depends on the formula and how many cc you need. For context, here are our genuine, published prices — the same figures a local Korean patient pays:
| 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 have on-site English and Chinese interpreters, so nothing gets lost between you and me during consultation and treatment. Rejuran is one of the most travel-friendly treatments we offer — low downtime means you can fit a session around sightseeing, and we're a short walk from Sinnonhyeon Station Exit 3. Same price for locals and visitors, always.
Start with a free 1:1 consultation
Before you book Rejuran, come in for a free, no-pressure 1:1 consultation. I'll assess your skin honestly, recommend the right formula and number of sessions — or tell you if something else suits you better. You decide with real information, not a sales pitch.
Get a free 1:1 consultation
Message our English-speaking team — same price as locals, no pressure.
Rejuran is one of my favorite quiet workhorses — it doesn't shout, but done well it genuinely upgrades your skin over time. If that's what you're after, come and let's plan it properly. — Dr. Hyunji Kim, Delphic Clinic, Gangnam, Seoul.
Frequently asked questions
Does Rejuran hurt?
There's some stinging — it's a series of tiny injections into the skin. We apply numbing cream for about 20–30 minutes first, and most patients rate it a 3–4 out of 10. The Healer formula can sting a little more than HB because of the higher PDRN concentration, but it's very manageable and over quickly.
How long does Rejuran last?
Rejuran isn't a filler, so it doesn't 'wear off' the way volume does. It's improving your skin's own repair activity, so results build and then gradually fade over roughly 6–12 months. Most patients do a maintenance session every 3–6 months to keep skin quality up.
How does Rejuran compare to a skin booster like Juvelook or filler?
Rejuran (PDRN) focuses on skin repair, texture, fine lines and elasticity. Hyaluronic skin boosters focus more on hydration and glow. Filler adds volume and shape. They solve different problems — I often combine them rather than pick one.
Is there downtime with Rejuran?
Minimal. You may see small bumps at each injection point for a few hours, occasionally into the next day, and the odd tiny bruise. Most people go back to work or sightseeing the same day, which makes it very one-day-trip friendly.
How many Rejuran sessions do I need?
For a real change I recommend a starter course of 3–4 sessions spaced 2–4 weeks apart, then maintenance. One session gives a small refresh; the cumulative effect is where Rejuran shines.
How much is Rejuran in Korea?
At Delphic, Rejuran Healer 2cc is ₩350,000, Rejuran I 1cc is ₩250,000, and Rejuran HB and S are ₩300,000 per cc. See the price section below — and it's the same price for locals and international visitors.
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.
