Rejuran HB in Korea: Hydrating Skin Booster Guide
Rejuran HB is a member of the Rejuran family of skin boosters, popular in Korea for skin that is both dry and tired-looking. It combines the salmon-derived PN found in Rejuran Healer with hyaluronic acid, so it aims to support repair and hydration at the same time. If you are visiting Busan and your skin feels dehydrated, dull or stressed, it is one of the boosters you are likely to hear about. This guide explains how it works, who it suits, what it costs and what to expect.
Quick answer: Rejuran HB is a skin booster that combines PN (polynucleotide) derived from salmon DNA with hyaluronic acid, injected in small points across the face to support skin repair and draw moisture into the skin. A session takes about 10–20 minutes after 20–30 minutes of numbing cream, with mild swelling or needle marks for 1–2 days. Three or more sessions 2–4 weeks apart are usually advised. In Seomyeon, Busan, Rejuran HB 2cc is listed from KRW 390,000, excluding 10% VAT.
What is Rejuran HB?
Rejuran HB is part of the Rejuran range made by PharmaResearch, a Korean company. Like the original Rejuran Healer, it contains PN purified from salmon DNA, which is used to support the skin's natural repair processes. The HB version adds hyaluronic acid, a moisture-binding molecule found naturally in the skin, for a more hydrating effect.
Product names and formulations can differ between markets. If you want the exact ingredient list, it is reasonable to ask to see the product label at your visit.
How it works
Rejuran HB is placed in many small, shallow deposits across the face, with closer spacing in areas that look dry and creased, such as the cheeks and under-eye margin. Hyaluronic acid draws water into the skin, which helps skin feel more hydrated within weeks. PN is thought to support fibroblast activity and a healthier skin environment, so elasticity and overall condition improve gradually over a series of sessions.
It is worth being clear about the evidence. Hyaluronic acid skin boosters are well established for hydration. PN boosters have been studied in small clinical trials with generally positive but modest results, and larger long-term studies are limited. Expect dewier, healthier-looking skin, not a change in face shape or a lift.
Rejuran HB vs Rejuran Healer vs Re2O
- Rejuran HB : PN combined with hyaluronic acid. Best for: dry, tired skin needing both repair and moisture.
- Rejuran Healer : salmon-derived PN. Best for: repair, elasticity and texture.
- Re2O : hyaluronic acid only. Best for: hydration and glow.
In short, choose Rejuran HB if your skin is both dry and tired, Rejuran Healer if repair is the main need, and a pure hydrating booster if you only want moisture and glow. Some people find Rejuran HB a little more comfortable than Rejuran Healer, but this is individual, and the choice should be based on your skin's needs.
Who it suits, and who should choose something else
Good candidates
- Skin that is both dry and tired-looking, with a dull, stressed surface.
- Fine lines that show more when skin is dehydrated.
- People who have tried a hydration booster and want more resilience.
- Those who can plan three or more sessions.
When another option may suit better
- Texture, pores or scars: Juvelook Skin targets collagen there.
- Sagging: energy-based lifting works on a different layer.
- Fish or salmon allergy: tell the clinic first; a non-PN booster such as Re2O or Juvelook Skin may be suggested.
- Pregnancy, breastfeeding or active skin infection: wait.
How much does Rejuran HB cost in Busan?
- Rejuran HB 2cc : from KRW 390,000
Related options at the same clinic include Rejuvelook (Rejuran 2cc + Juvelook Skin 2cc) from KRW 319,000. Prices checked October 2026. They exclude 10% VAT, which is added at payment, and prices can change, so confirm the current price when you book.
When comparing prices, check the amount in cc, whether the product is genuine Rejuran HB and whether the price is per session or for a course.
What happens during a session
- Before you arrive. Send a daylight photo and your travel dates, and mention any fish allergy or previous reaction to boosters.
- Consultation. The doctor checks dryness, fine lines, skin thickness and sensitivity, and confirms whether HB or Rejuran Healer suits you better.
- Numbing. The skin is cleansed and numbing cream applied for about 20–30 minutes.
- Injection. About 10–20 minutes, with pricking and small blebs. You can ask for a break at any time.
- After. Back to your day; the next session is usually 2–4 weeks later.
Results and timeline
- First days: small bumps and needle marks settle within 1–2 days.
- Weeks 1–3: skin feels more hydrated and looks fresher.
- After 3 sessions: elasticity and overall condition improve most.
- Ongoing: maintenance is planned with your doctor.
How long results last depends on your age, skin condition and lifestyle. Results vary from person to person.
Side effects and aftercare
Common effects are small bumps or visible injection marks for 1–2 days, redness, mild swelling or tenderness, and occasional bruising that fades over several days. Rarely, infection, allergic reaction or persistent lumps can occur. It is not suitable with an uncontrolled autoimmune condition, active cold sores or inflamed acne in the area, or a tendency to keloid scars. Mention any blood thinners.
Aftercare tips
- For about 3–4 hours, avoid lying face-down and do not rub the treated area.
- On the day, skip saunas and jjimjilbang, hot baths, alcohol and hard exercise.
- Do not massage or press on the area.
- Most people resume makeup the next day.
Planning Rejuran HB around a trip
A gentle afternoon in Seomyeon or a seaside walk is usually fine after treatment. Leave jjimjilbang visits for later in your stay and keep skin moisturised on the flight home. Short-notice bookings are often possible depending on the schedule. The clinic is about 3 minutes from Seomyeon Station Exit 7, open Mon–Fri 10:00–20:00 and Sat 10:00–16:00 KST, closed for lunch 13:00–14:00 and on Sundays.
Frequently asked questions
What does HB mean?
It refers to the version of Rejuran that adds hyaluronic acid to the PN base, chosen when hydration is needed alongside repair.
Can I have Rejuran HB if I am allergic to fish?
Tell the clinic before booking. A fish allergy does not always mean a reaction, but caution is sensible, and a non-PN booster may be recommended.
Can I fly after Rejuran HB?
Yes. Small bumps or marks may last 1–2 days, but most people carry on as normal and can fly.
Thinking about Rejuran HB in Busan?
Send a clear photo in daylight and your travel dates on WhatsApp to get a plan and today's price in English.
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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