Source (salmon, trout, placenta, plant, microbial)
G_SOURCEWhat does this word mean?
The biological origin of PDRN, since different sources differ in molecular weight spectrum, activity and evidence base.
Expanded note
In the site product database 522 of 644 products (81%) have no disclosed source, with only 98 marked salmon, 21 plant and 3 marine. That is precisely why the site carries a source layer card, because the unverifiability of source is itself information. The measured human study used medium-length PDRN-850K of at most 850 kDa, so conclusions cannot be extrapolated to every product on the market.
Not a generic example.
PMID 29609429 directly compares wound healing between salmon-derived (Oncorhynchus keta) and trout-derived (Oncorhynchus mykiss) PDRN.
Related terms
Where this term appears
Educational reference only. This site does not provide medical advice, treatment courses, injection counts, clinic recommendations or price recommendations.
PDRN is not approved by the FDA for injection or any therapeutic use. Topical and injectable PDRN are parallel facts under different regulatory pathways and must not be directly equated.
PN is not PDRN. Evidence grades are labelled on every factual element; in vitro and animal research is never described as clinical efficacy.