ASCE+ vs Rejuran vs Salmon DNA Boosters: What Actually Differs
Not drugstore skincare. Not injectables either.
ASCE+, Exomage and the Rejuran topical line move through Korea's professional clinic channel — these are the products aesthetic clinics actually use during and after treatments, and stock for patients to take home. It's why you won't find them at mainstream beauty retailers, and why most people first hear about them from their own dermatologist or aesthetician.
Here's the part that matters: none of these are injectables. The entire range is topical — ampoules, creams, masks. Same clinic-channel products, no appointment, no needles.
Exomage, for instance, is registered in Korea as a dual-function cosmetic for brightening and wrinkle improvement — an official Korean MFDS classification, not marketing copy.
Short answer: These three aren't competing versions of the same thing. Salmon DNA boosters like Rejuran Healer are injectables administered by a clinician. ASCE+ is a topical exosome range used at home or after in-clinic procedures. And confusingly, Rejuran also sells a topical PDRN line that has nothing to do with the injections. Most comparisons online mix all three up.
The confusion that trips almost everyone up
Search "Rejuran" and you'll get two entirely different product categories wearing the same name:
1. Rejuran injectables (Rejuran Healer, Rejuran I, Rejuran S) — polynucleotide solutions injected into the dermis by a clinician. This is a medical procedure.
2. Rejuran topical skincare (the Synergy ampoule line) — leave-on cosmetics containing PDRN that you apply yourself. No needles, no clinic.
They share a brand, but they're not the same product and not the same delivery. When someone asks "is Rejuran better than exosomes," the answer depends entirely on which Rejuran they mean.
What each one actually is
Salmon DNA boosters (PN / PDRN injectables)
Polynucleotides are short DNA fragments derived from salmon or trout DNA, purified and injected intradermally. The category splits roughly into PDRN (shorter chains, under ~1500 kDa) and PN (longer chains, ~1500 kDa and above).
- How it's delivered: intradermal injection, by a clinician
- Typical protocol: 2–3 sessions, 2–4 weeks apart
- Downtime: generally mild and transient — injection-site redness, swelling, occasional bruising
- Timeline: changes build gradually, usually assessed at 3–6 months
A systematic review in the Journal of Cosmetic Dermatology covering nine studies and 219 patients reported meaningful improvements in wrinkles, skin texture and elasticity, with side effects described as mild and transient and patient satisfaction moderate to high.
Topical PDRN (the Rejuran Synergy line)
Same headline ingredient family, different product format. These are cosmetics — ampoules and serums you apply yourself. No clinician, no needles, no downtime, and they slot into an everyday routine.
Rejuran's topical range includes the Synergy Skin Booster and the Synergy Tone Up Booster.
ASCE+ exosomes (ExoCoBio)
ASCE+ uses ExoCoBio's ExoSCRT™ purification technology, with exosomes derived from Damask rose stem cells. Exosomes are extracellular vesicles that carry signalling molecules between cells.
The range comes in two formats:
Lyophilised — freeze-dried exosome powder mixed with its paired solution right before use. This covers the SRLV concentrated kit, the HRLV scalp ampoule, and the Exobalm repair cream (powder plus essence emulsion).
Ready to use — no mixing required. This covers the Soothing Gel Mask, the Platinum Eye Cream, the Calming Ampoule, and the Exomage rose exosome ampoule.
Head to head
| Salmon DNA injectables | Topical PDRN | ASCE+ exosomes | |
|---|---|---|---|
| Category | Medical procedure | Cosmetic | Cosmetic |
| Delivered by | Licensed clinician | You | You, or in-clinic aftercare |
| Needles | Yes | No | No |
| Downtime | Mild, transient | None | None |
| Frequency | 2–3 sessions, 2–4 wks apart | Daily routine | Daily, or post-procedure |
| Cost pattern | Per session, clinic pricing | Per bottle | Per bottle or kit |
They work together — it isn't an either/or
Treating these three as rivals is the most common misunderstanding. In practice they do different jobs at different moments.
On procedure day and the days after. Freshly treated skin wants gentleness and comfort. That's why the ASCE+ Soothing Gel Mask and Exobalm repair cream turn up so often in clinic aftercare kits — mild textures, light on fragrance, made for skin that's settling.
Between sessions. Injectable courses are usually spaced 2–4 weeks apart, and those weeks in between are carried by your daily routine. Both topical PDRN ampoules and exosome ampoules fit naturally here.
If you're not having procedures at all. A topical-only routine is perfectly reasonable. Set expectations around what cosmetics do: hydration, barrier comfort, and how skin looks and feels.
If your skin reacts easily. Introduce one new product at a time and patch test first. Note that Exomage is not suitable for abnormally sensitive skin.
FAQ
Is ASCE+ the same as Rejuran?
No. ASCE+ is ExoCoBio's rose stem cell exosome range. Rejuran is a PharmaResearch brand covering both polynucleotide injectables and a separate topical PDRN skincare line.
Which is better, exosomes or salmon DNA?
They aren't directly comparable, because they sit in different categories. Injectable polynucleotides are a medical procedure performed by a clinician. Topical exosomes and topical PDRN are cosmetics for everyday routines. Most people use both rather than choosing one.
Can I use exosome products after Rejuran injections?
Follow your clinician's aftercare instructions — they're the only ones who know your treatment and your skin. Gentle post-procedure topicals are commonly recommended during recovery.
Is PDRN the same as PN?
They're related. PDRN refers to shorter DNA fragments (under ~1500 kDa) and PN to longer ones (~1500 kDa and up), both from salmon DNA.
Where can I buy these?
MK EXO Shop ships ASCE+, Exomage and the Rejuran topical line across borders to the US, Canada, UK, Australia, EU, Singapore, Malaysia and the Middle East.
Sources
- Lampridou S. et al. (2025). The Effectiveness of Polynucleotides in Esthetic Medicine: A Systematic Review. Journal of Cosmetic Dermatology. https://pubmed.ncbi.nlm.nih.gov/39645667/
- ExoCoBio — ExoSCRT™ exosome purification technology, ASCE+ and Exomage product information (manufacturer published data)
- PharmaResearch — Rejuran product line information (manufacturer published data)
Last updated: August 2026
MK EXO Shop is a cross-border retailer of authentic Korean skincare. We are not a clinic and this article is not medical advice. Injectable treatments require a licensed practitioner — please consult one.