How Long Does Rejuran Take? Chair Time, Bumps and Trip Days
Dr. Jong Seon Kim Β· Director, Gangnam HERA8 min read
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With Rejuran, how long does it take before your skin settles and you can fly home, and can a whole course fit into one trip to Seoul?
The visit itself usually takes half a day at most, and the tiny bumps from the injections typically flatten within one to three days. The full course is the slow part: sessions are generally spaced two to four weeks apart, so a short trip usually fits one session.
Hello, I'm Dr. Jong Seon Kim, Director of Gangnam HERA Plastic Surgery Clinic in Seoul and a board member of the Korean Society of Aesthetic Surgery (KSAS) and the International Petit Medical Society.
When your days in Seoul are counted, two facts help. HERA is registered with Korea's Ministry of Health and Welfare to treat foreign patients, and you can have a medical interpreter for your language at no extra charge, so the timing of each step is clear before anything is injected. The doctor who consults with you is also the one who injects you.
If you already have your flight dates, send them on WhatsApp with one daylight photo of the area that bothers you, and ask whether one session or two fits between landing and leaving.
Book a consultation
Send us your question or a photo on WhatsApp and we will reply in English.
How long does the Rejuran appointment take?
Plan for a half day and you won't feel rushed. In general, numbing cream sits on the skin for about 30 to 40 minutes, and the injections themselves take roughly 10 to 20 minutes for the full face. Adding the under-eye area adds a little more.
Before any of that comes the consultation. Every treatment at HERA begins with a 1:1 consultation, and that is where we agree on the areas, the product and how many sessions make sense for your trip. Confirm the slot length when you book, and keep the rest of that day light.
Two calendar details catch travelers out. The clinic is closed on Sundays and Korean public holidays, and Saturday hours end at 17:00, so if you land on a Saturday afternoon your first realistic slot may be Monday. The lunch break runs from 13:00 to 14:00.
The visible change in texture comes later and gradually, over the weeks after a session. I've described what that change realistically looks like in what Rejuran results look like over time.
Is Rejuran the right fit for what you see in the mirror?
Rejuran is a polynucleotide injection made from purified salmon DNA. It works on the quality of the skin itself: thin, crepey, dehydrated skin, fine lines and rough texture. Rejuran I is the version used around the eyes, where the skin is thinnest. If the main thing you notice in your forties or fifties is that the skin looks tired and papery, it is a reasonable place to start.
It does not replace lost volume, lift a sagging jawline or fade dark spots. A hollow under the cheekbone usually needs filler. Jowls that have dropped are a lifting question, and our notes on choosing a titanium lifting clinic in Korea explain that route. Brown spots and uneven tone respond to pigment treatments, covered in skin whitening in Korea.
My aim is conscientious care without overtreatment. If Rejuran alone is enough for what bothers you, I'd rather you spend your days in Seoul on that than add a second procedure that eats into your recovery margin.
What a visit includes, and how the estimate is set
A Rejuran visit at HERA includes the consultation, the numbing and the injection by the doctor you consulted with. You get a written estimate before treatment, and local and foreign patients pay the same price, with no surcharge for coming from abroad.
What moves the figure for your case:
- Which product: Rejuran, Rejuran HB or Rejuran I for the eyes
- How many areas: full face, under-eyes, or both
- How many sessions you can fit into your stay
- Whether anything else is planned on the same visit
The deposit and how you pay are settled after the consultation. If you're comparing trips, ask on WhatsApp what your own plan would cost, listing the areas and your dates. For how polynucleotide boosters differ from one another, see our guide to polynucleotide skin boosters in Korea.
Who opens the vial and who injects?
At HERA, the specialist who consults with you is the one who treats you; you are not handed to someone else once the plan is made. We use only genuine, approved products, and the sealed vial is opened in front of you, so you can see what goes into your skin.
We don't rush through high volumes. For someone with a week or two in Seoul that matters, because the conversation about timing (which day, which areas, how close to the flight) is part of the treatment itself. Our directors also keep attending academic conferences in Korea and abroad, which is how we keep injectable work grounded in current evidence.
How long do the bumps last, and when is it safe to fly?
Most people see small raised bumps along the injection rows right away, and they typically flatten within one to three days. Redness usually fades within hours. A bruise, if one appears, can take about a week to clear.
| When | What you'll usually see | What you can do |
|---|---|---|
| Same day | Rows of small bumps, some redness | Rest; skip makeup, sauna and alcohol |
| Day 1β3 | Bumps flatten; under-eyes may lag | Light makeup once entry points close; normal sightseeing |
| Day 7 | Any bruise is fading | Exercise and sauna generally fine again |
| Week 2β4 | Texture starts to change gradually | Window for the next session |
Before you fly
book Rejuran no later than three days before your flight home, and never the day before. Flying itself doesn't harm the result; the point is that if a bruise or a slow bump shows up, you want it to happen while you're still in Seoul.
If you're weighing the under-eyes as well, mention that on WhatsApp together with your flight-home date. Under-eye skin is where bumps tend to linger, so it changes how many buffer days to plan.
Book a consultation
Send us your question or a photo on WhatsApp and we will reply in English.
How many weeks does a full course take on one trip?
A course is commonly two to four sessions spaced two to four weeks apart, with maintenance sessions later on. That interval decides your trip length more than the recovery does.
Say you're 57, living in Melbourne, and in Seoul for twelve days to see family, with thin, crepey skin across the cheeks and under the eyes. Twelve days fits one session comfortably. I would book it on day two or three, keep the under-eyes in the plan only if there are at least three clear days before the flight, and treat this trip as session one. Squeezing a second injection in after ten days is too early; the next session fits your next visit, or a longer stay.
If you can stay three to four weeks, two sessions become possible: one early, one about two weeks later, still three or more days before you leave. For eye-area work specifically, Rejuran around the eyes explains what to expect from that thinner skin.
Bruising, lasting bumps and who should wait
A systematic review of polynucleotide treatments in the Journal of Cosmetic Dermatology found that reported side effects were mostly mild and short-lived: redness, swelling, tenderness and bruising at the injection points. How long they last varies from person to person, and under-eye bumps can take longer than the cheeks. Infection and allergic reaction are uncommon but possible with any injection.
You should wait, or talk it through carefully at the consultation, if:
Risks and side effects to know
- you are allergic to fish or salmon, since Rejuran is salmon-derived
- there is active acne, a rash, a cold sore or an infection in the area
- you had a laser or chemical peel on the same area recently
- you are taking isotretinoin, or are pregnant or breastfeeding
- you take blood thinners (don't stop them on your own; tell the doctor)
After you're home, a bump that becomes hot, increasingly painful, red and spreading, or that leaks fluid after day three is not ordinary swelling. See a local doctor promptly and bring the name of the product. Before you book, ask on WhatsApp what HERA suggests if something like that comes up after you're back.
The treatment itself. If you want the clinical detail β who it suits, how a session runs, recovery and the honest limits β it is set out on our Rejuran page.
Visiting HERA in Gangnam
HERA is on the 4th floor of the Time Building, 9 Seocho-daero 73-gil, Seocho-gu, Seoul. From Gangnam Station (Line 2), take Exit 9, walk about three minutes along Seocho-daero and turn right onto Seocho-daero 73-gil; the building's external elevator goes up to the fourth floor. Hours are Monday and Friday 10:00β20:00, Tuesday to Thursday 10:00β19:00 and Saturday 10:00β17:00, with lunch 13:00β14:00, closed Sundays and public holidays. More about the clinic is on the HERA homepage.
Your first message can be short: your arrival and departure dates and one photo of your skin in daylight, sent on WhatsApp, with the question of how many sessions your stay allows. You can ask before booking anything. When you come, the first thing I look at is how thin the skin is under the eyes and over the cheeks, because that decides whether Rejuran I belongs in this trip's plan.
FAQ
Frequently asked questions
Q1Does Rejuran hurt, and for how long?
With numbing cream, most people feel a quick sting at each injection point, and that lasts only for the 10 to 20 minutes of injecting. Under the eyes it stings more than on the cheeks. The skin can feel tender to the touch for a day or two afterward.Q2When can I wear makeup again?
Generally the next day, once the tiny entry points have closed. On the treatment day itself, keep the skin clean and leave it bare.Q3How long does a Rejuran result last?
Because it works on skin quality gradually, maintenance sessions are commonly suggested every six to twelve months after the initial course. Sun exposure, smoking and age all shorten that interval.Q4Can I combine Rejuran with a laser on the same trip?
Often yes, but the order and spacing matter. Skin that is freshly inflamed from a laser is generally given time to calm before it is injected. Mention any laser or peel you had in the weeks before your trip.Q5What if I can only come to Seoul once a year?
One session a year still works on skin quality, though less than a full course. Another option is a longer stay of three to four weeks, which allows two sessions about two weeks apart on the same trip.
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On YouTube
Hear it from the doctors before you fly
Our doctors explain HERA's main treatments, lifting, filler and skin boosters, on camera, so you know who you are meeting and how they think before you land in Seoul.
Korean audio Β· auto-translated captions available on YouTube
16 videos
- 6:24Filler
Dr. Kim and Dr. Lee sort out how fillers, collagen injections and skin boosters differ, and which concern each one is for.
Dr. Jong Β· Dr. Jong - 7:36Clinic & doctors
HERA podcast ep. 3 β Dr. Kim and Dr. Lee look at the same face and explain the treatments they would choose, and why.
Dr. Jong Β· Dr. Jong - 8:07Lifting
What APTOS threads are, who they are recommended for, and a real patient's treatment and before-and-after.
Dr. Jong - 5:44Lifting
How APTOS compares with other lifting threads, what recovery is like and how long results last.
Dr. Jong Β· Dr. Jong - 4:20Filler
Dr. Kim shows how injection technique changes with the amount of filler, and how filler dissolves.
Dr. Jong - 5:50Filler
What a hollow upper eyelid is, filler vs fat grafting, how long it lasts and what to watch for.
Dr. Jong - 5:20Filler
Dr. Kim breaks down lip proportion, volume and mouth corners using well-known Korean celebrities' lips as examples.
Dr. Jong - 5:39Skin & boosters
Hydration, pores, breakouts or tone β matching the skin booster to what your skin actually needs.
Dr. Jong - 6:05Skin & boosters
Dr. Lee explains how Lituo and CaHA work, how they are injected and how often.
Dr. Jong - 5:00Skin & boosters
What Juvelook Eye is, what it is used for, how many sessions it takes and how long it lasts.
Dr. Jong - 5:56Lifting
Why lines form around the eyes, which treatments are combined, and Eye Thermage vs Eye Ulthera.
Dr. Jong - 4:58Lifting
Why Dr. Lee cares about lifting, and what he looks at first when he sees a patient.
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Dr. Han talks about what matters most in a consultation and the approach behind every treatment.
Dr. Jin - 5:29Skin & boosters
A tour of HERA's main devices and which skin concern β pores, texture or firmness β each one helps with.
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Three areas brides care about, recommended treatments, and what still works with a month to go.
Dr. Jong Β· Dr. Jong - 4:39Clinic & doctors
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Shorts
One question, under a minute
HERA TV
The doctors explain it on camera β then in writing
Each piece is written by the doctor from their own YouTube video: the patient question, why it happens and how we approach it.
6:24korean plla fillerKorean PLLA Filler? Filler vs Collagen Booster vs Skin Booster
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Dr. Jong Seon Kim7 min read
4:21neck line fillerNeck Line Filler: One Treatment, Start to Follow-Up
A Gangnam plastic surgeon treats a young patient's two neck lines on camera β why the lines form, why they are filled slightly high at first, how much it hurts, and what the follow-up visit showed.
Dr. Jin Yi Han6 min read
5:39korean skin boosterKorean Skin Booster: How to Choose by Your Skin's Main Problem
There are so many Korean skin boosters that patients freeze. A Gangnam doctor sorts them by the four problems that matter β hydration, pores, inflammation and brightness β and names the one he would pick if he could only choose one.
Dr. Jong Seon Kim7 min read
HERA Journal
Keep reading
Skin boostersWhen Does Rejuran Start to Show? Bumps, Weeks and Your Flight
Rejuran's injection bumps usually settle in a day or two and hydration often shows within weeks, while texture changes build over a course. Dr. Jong Seon Kim on which day of your Seoul stay to book it.
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Skin boostersHow Long Does Rejuran Last? Months, Sessions and Trip Days
After a course of about three sessions spaced weeks apart, Rejuran's effect commonly holds for six months to a year. The bumps settle in one to three days, so session spacing shapes your trip more than downtime.
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Skin boostersRejuran Recovery Day by Day: Bumps, Bruises and Your Flight
Most people see Rejuran bumps flatten within about a day and redness fade in one to two days; a bruise can take up to a week. Keep two to three days in Seoul after the injection.
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Visit us
Find Gangnam HERA
In Seocho-gu, Seoul, a three-minute walk from Gangnam Station Exit 9. Tap the map for directions.
Address
4F, 9 Seocho-daero 73-gil, Seocho-gu, Seoul, Republic of Korea
Opening Hours
Tuesday, Wednesday, and Thursday: 10:00 AM β 7:00 PM; Monday, Friday: 10:00 AM β 8:00 PM; Saturday: 10:00 AM β 5:00 PM; Lunch break: 1:00 PM β 2:00 PM; Closed on Sundays and public holidays
