Rejuran vs Exosome Treatment: Evidence, Results & Cost
Rejuran and exosome treatments are both marketed in Korea as ways to repair and refresh the skin, and visitors to Busan often ask which is more effective. The honest answer starts with the evidence: one is an established injectable with years of clinical use, the other is a newer category where research is still developing. This guide sets out what each does, what is and is not proven, and what you can expect to pay.
Quick answer: Rejuran Healer is a PN (polynucleotide) skin booster from salmon DNA, injected in a series to support skin repair, texture and elasticity. It has a longer track record and more clinical data. Exosome treatment delivers a concentrated ampoule of cell-derived signalling vesicles into the skin, usually through microneedling or right after a laser, to help soothe and support recovery. Exosome research in aesthetics is still limited and products vary widely, so it is best seen as a supportive add-on rather than a stand-alone fix. For a dedicated repair course, Rejuran is usually the more evidence-based choice.
What is Rejuran?
Rejuran Healer is made by PharmaResearch in Korea. Its PN is purified from salmon DNA and supports fibroblast activity and the skin's own repair processes. It is injected in small, evenly spaced points after numbing cream, and a series of 3 or more sessions 2–4 weeks apart is usually advised. It is used for thin, fragile or slow-to-recover skin, rough texture, fine lines and loss of elasticity.
What is exosome treatment?
Exosomes are tiny vesicles released by cells. They carry signalling molecules such as proteins and growth factors that cells use to communicate. In skincare, exosome ampoules are applied to the skin through tiny channels created by microneedling, a fractional laser or fine injections, so the product reaches the skin rather than sitting on the surface. They are commonly used to calm skin after laser treatments or to refresh tired skin.
What the evidence says
Rejuran (PN)
- PN boosters have been used in Korea for many years, with supportive clinical studies on skin quality and wound healing.
- The improvements reported are gradual and moderate: better texture, elasticity and resilience over a series.
- Claims of dramatic "regeneration" from salmon DNA go beyond what is proven.
Exosomes
- Research on exosomes for skin is early. There are laboratory studies and small clinical reports, but few large, well-controlled trials.
- Products vary greatly between manufacturers in source, concentration and processing, so results from one product cannot be assumed for another.
- Long-term safety data are limited. In some countries, including the USA, regulators have not approved exosome products for injection to treat skin conditions and have warned consumers about unapproved products.
- When used as a post-laser or microneedling ampoule, it is reasonable to expect soothing and support, not a guaranteed transformation.
Results compared
- Rejuran: bumps settle in 1–2 days; skin begins to look healthier at weeks 2–4; the clearest change in elasticity, texture and fine lines after about 3 sessions.
- Exosome: skin may look calmer and fresher within days, especially after a laser; improvements in texture partly come from the paired treatment (microneedling or laser) itself.
Results vary by person for both.
Cost in Busan
Example prices at a clinic in Seomyeon:
Exosome
- Full-face pico fractional laser + exosomes 1cc + cryo care + soothing mask : from KRW 129,000
Rejuran
- Rejuvelook (Rejuran 2cc + Juvelook Skin 2cc) : from KRW 319,000
- Rejuran HB 2cc : 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, and prices change frequently. Exosome prices here include a laser treatment, so you are paying mainly for that procedure with the ampoule as an add-on. Both are recommended as a course of about 3 sessions.
Who suits which
Rejuran may suit you if
- You want a dedicated injectable course for thin, fragile or tired skin.
- You prefer a treatment with a longer track record.
- You have no fish or salmon allergy.
Exosome may suit you if
- You are already having a laser or microneedling treatment and want extra soothing support.
- Your skin looks tired and stressed and you want short downtime.
- You understand it is a supportive treatment with limited evidence.
Neither may be right if
Acne scarring is your main concern (Potenza targets scars directly), you want volume or fold correction (exosomes and Rejuran do not fill), or sagging is the issue (lifting devices work on a different layer).
Downtime and aftercare
- Rejuran: raised bumps for a few hours, needle marks and mild swelling for 1–2 days; makeup from the next day.
- Exosome with pico fractional laser: mild redness and needle-like marks for 1–2 days.
- Exosome with Potenza: skin recovery takes about 3–7 days, so plan photos accordingly.
For both, avoid lying down or rubbing your face for 3–4 hours, skip saunas and jjimjilbang, hot baths, alcohol and hard exercise on the day, and wear sunscreen. Postpone treatment during pregnancy or breastfeeding, with active infection, cold sores or inflamed acne, and tell the doctor about allergies and medications such as blood thinners or isotretinoin.
Frequently asked questions
Are exosomes the same as stem cells?
No. Exosomes are vesicles released by cells, not cells themselves. Products may be derived from cultured cells, but they do not contain living stem cells.
Can Rejuran and exosomes be combined?
They can be used in the same treatment plan, for example exosomes after a laser and Rejuran in a separate session. A doctor will advise on timing.
Which is better value?
For a focused repair course, Rejuran offers more established evidence. Exosomes can be good value as an add-on when you are already having a laser or microneedling.
Want an honest plan for tired or damaged skin?
Send a make-up-free daylight photo 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.
Recent Posts









