Water Glow Injection vs Rejuran: Cost & Downtime
Water glow injections and Rejuran are two of the most popular skin boosters for visitors to Busan, and both involve many tiny injections across the face. They look similar from the outside, so it is easy to assume they do the same thing. In fact one is mainly about hydration and the other about repair, and they differ in price and in how much recovery time you should plan around your trip.
Quick answer: A water glow injection places a soft, fine hyaluronic acid product in many shallow points to hydrate the skin from within, improving dryness, dullness and fine dehydration lines. Rejuran Healer uses salmon-derived PN to support skin repair, improving texture, elasticity and fragile skin. Downtime is similar: small bumps or needle marks for 1–2 days. Water glow injections are generally the lower-cost entry point, while Rejuran is usually priced higher and often sold in packages. Both work best as a course of about 3 sessions 2–4 weeks apart.
What each treatment does
Water glow injection
Hyaluronic acid is a sugar molecule found naturally in the skin that holds water. In a water glow injection, a soft hyaluronic acid product is spread in small amounts across the face rather than placed as a volume filler. The aim is moisture and glow, not shape. It suits skin that feels tight, looks dull or shows fine dryness lines.
Rejuran Healer
Rejuran Healer is made by PharmaResearch in Korea and contains PN (polynucleotide) purified from salmon DNA. PN supports fibroblast activity and the skin's natural repair, so improvement builds gradually over a series. It suits thin, fragile or slow-to-recover skin, rough texture and early loss of elasticity. On evidence, PN boosters have supportive data and long use in Korea, but expect a gradual, moderate change rather than dramatic "regeneration".
Cost in Busan
Example prices at a clinic in Seomyeon:
Water glow and hydration boosters
- Hyaluronic acid injection 2.5cc : from KRW 39,000 (a single-session, first-visit trial offer, not the price of a full course)
Rejuran
- Rejuvelook (Rejuran 2cc + Juvelook Skin 2cc) : from KRW 319,000
- Rejuran HB 2cc (PN plus hyaluronic acid) : from KRW 390,000
- Rejuran 2cc + Juvelook Skin 2cc + hydration injection 2cc + full-face skin Botox : from KRW 590,000
- CellREDM 7cc + Rejuran 2cc + LDM + hydrating mask : from KRW 690,000
Prices checked October 2026. They exclude 10% VAT, which is added at payment, and prices can change, so confirm when you book. Trial prices are limited offers for a first session; ask for the regular price of the volume and number of sessions you actually need before comparing.
Downtime compared
Water glow injection
- Small bumps, needle marks or mild swelling for 1–2 days; bumps often settle within the first day.
- A small bruise is possible and can take up to a week to fade.
- Light makeup is usually fine from the next day.
Rejuran Healer
- Raised bumps are normal for the first few hours and usually settle within a day.
- Needle marks and mild swelling can last 1–2 days, especially under the eyes.
- PN boosters can sting a little more during injection.
- Leave makeup until the next day.
For both, avoid lying down or rubbing your face for 3–4 hours, and skip saunas and jjimjilbang, hot baths, alcohol and strenuous exercise on the day. You can sightsee straight after, though many people prefer a quiet evening. Plan photos for a day or two later.
Results compared
- Water glow injection: skin often looks more hydrated and fresher within days once bumps settle; a course of about three sessions gives a more lasting improvement in dryness and fine lines.
- Rejuran Healer: skin begins to look healthier at weeks 2–4; elasticity, texture and fine lines show the clearest change after about three sessions; maintenance every few months.
Results vary by person for both.
Who suits which
Choose a water glow injection if
- Your skin feels tight and dry even with moisturiser.
- Your complexion looks dull and you want a fresher glow, for example before an event.
- You want a first booster to try before a longer collagen or repair course.
Choose Rejuran if
- Your skin is thin, sensitised or slow to recover after sun or lasers.
- Fine lines, rough texture and loss of bounce are the main concerns.
- You want to strengthen skin before or after lifting or laser treatments.
Consider combining
If your skin is both dry and tired, repair and hydration complement each other. Rejuran HB combines PN with hyaluronic acid in one product, and many packages pair Rejuran with a hydration injection.
Who should wait
Postpone both during pregnancy or breastfeeding, or with active infection, cold sores or inflamed acne in the area. Rejuran is unsuitable with fish or salmon allergy; hyaluronic acid boosters are unsuitable with allergy to hyaluronic acid or lidocaine. Tell the doctor about blood thinners and supplements.
Planning around a trip
- Book either booster at least a day or two before photos, events or a special dinner.
- Flying is generally fine; cabin air is dry, so keep moisturising during the flight.
- Because both work best as a series, short-stay visitors often have one session in Busan and continue on a later visit or at home.
- If you are also having a laser or lifting treatment, the doctor will plan the order on the same day.
Frequently asked questions
Which is cheaper over a full course?
Hydration boosters are generally the lower-cost option, while Rejuran is usually priced higher. The total depends on the volume used and number of sessions, so ask for a course price.
Which has less downtime?
They are similar: 1–2 days of small bumps or marks. Rejuran bumps can be slightly more noticeable for the first few hours, and treatment may sting more.
Can I have both on the same day?
Yes, they are often combined. Packages that pair Rejuran with a hydration injection address repair and moisture together.
Want glowing skin during your Busan trip?
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This article is for general information and does not replace a medical consultation. Suitability, results, recovery and side effects vary from person to person.
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