Peptide Encyclopaedia
PDRN (polydeoxyribonucleotide)
Also known as Salmon DNA fragment mixtures.
Cosmetic peptide / protein ingredient for education. Cellular Sequence does not sell this as an injectable. Finished topical products, if any, are labelled as cosmetics.
At-a-glance profile
- Classification
- DNA fragment mixture (not a peptide)
- Approval status
- Cosmetic
- Research status
- Investigational / reference listing.
- Molecular formula
- Insufficient reliable evidence identified.
- Molecular weight
- Insufficient reliable evidence identified.
- Sequence
- Depolymerised DNA used in some skin procedures and cosmetics.
- Primary biological target
- Insufficient reliable evidence identified.
- Half-life
- Insufficient reliable evidence identified.
- Routes investigated
- Insufficient reliable evidence identified.
- Human evidence level
- C — Limited or early human evidence
What is it?
A polynucleotide skin ingredient/procedure class, often listed next to peptides. Not sold as an injectable kit here.
Mechanism of action
Proposed A2A receptor / wound-healing narratives in aesthetic literature.
Device/clinic context in some countries; mail-order vials are not that setting.
What is it being studied for?
- Aesthetic dermatology literature of mixed quality
Investigational findings are not proven clinical benefits unless an authority has labelled that indication.
Evidence level
Overall human evidence grade: C · Limited or early human evidence
Human research
Mostly aesthetic series, not TGA-standard drug approval for anonymous vials.
Preclinical research
Animal, cell and in-vitro findings are listed separately from human effects.
Nucleic-acid fragment biology.
Doses reported in published research
This section does not provide personalised medical dosing. Values are those reported in papers or protocols. Animal mg/kg doses are not converted to human doses.
Doses reported in human studies
Insufficient reliable evidence identified.
Preclinical / animal study dosing
Insufficient reliable evidence identified.
Pharmacokinetics
Reliable human pharmacokinetic data were not identified for this encyclopaedia entry, or are limited to product information for approved presentations.
Safety
Injection-site reactions.
Unknowns. Absence of a published harm signal is not evidence of safety.
Contraindications. Not a home injectable.
Regulatory status
Device/cosmetic/medicine status varies; research vials are not sold.
Cellular Sequence does not sell this as a vial, tablet, oil, or injectable. Educational encyclopaedia listing only.
Citations
[1] Encyclopaedia note
Encyclopaedia note
For educational and research reference only. This page summarises published scientific literature and does not constitute medical advice, prescribing information or a recommendation to use an investigational compound. Research doses shown describe doses reported in published studies and are not personalised dosing instructions.
Last reviewed 2026-09-13. Research areas: Skin & Hair · Compare peptides