For your skin
PDRN is often marketed as “salmon DNA.” The available sources are not enough to show that a leave-on cosmetic PDRN formula improves fine lines, brightness, or post-procedure recovery. A PPM claim or source label can describe a product, but it does not show that its formula matches the research.
Want the science? Keep reading ↓Mechanism of action
Short DNA fragments studied for adenosine-receptor signaling and tissue-repair pathways. The cataloged evidence includes laboratory, animal, and wound-healing research.
Why we tier this fair
4 cited papers across 2 countries. Most of what's cited here is mechanism-level or in-vitro work. We track this as Anecdotal until controlled clinical trials accumulate.
Read the research
Cited research
Lee D et al., Skin Regeneration and Barrier-Improvement Efficacy of Polydeoxyribonucleotide Isolated from Panax Ginseng Adventitious Root, Molecules 2023;28(21):7240: plant-derived PDRN promoted keratinocyte/fibroblast proliferation and strengthened barrier function
Lee S, Won KH et al., A Mixture of Topical Forms of Polydeoxyribonucleotide, Vitamin C, and Niacinamide Attenuated Skin Pigmentation and Increased Skin Elasticity by Modulating Nrf2, Molecules 2022;27(4):1276: topical PDRN + Vit C + niacinamide reduced melanin and improved elasticity in UV-B model, comparable to hydroquinone
Squadrito F et al., Polydeoxyribonucleotide: A Promising Biological Platform to Accelerate Impaired Skin Wound Healing, Pharmaceuticals (Basel) 2021;14(11):1103: review documenting PDRN activation of adenosine A2A receptors, VEGF release, and accelerated wound healing across diabetic, thermal, and ischemic models
Kwon TR et al., Polydeoxyribonucleotides Improve Diabetic Wound Healing in Mouse Animal Model for Experimental Validation, Annals of Dermatology 2019
Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.