Salmon DNA vs plant PDRN: does the source matter?
Salmon, seaweed, ginseng, centella, probiotics: PDRN creams now come from surprisingly different places. Here is what each source means, what the evidence covers, and how to choose the one that is right for you.
When PDRN first appeared in skincare, there was only one kind: DNA purified from salmon. Today, many creams advertise “vegan PDRN,” “plant PDRN” or “fermented PDRN.” That is good news for anyone who avoids animal-derived ingredients, and a little confusing for everyone else. Let us untangle it.
What classic salmon PDRN is
Classic PDRN is a mixture of DNA fragments, mainly extracted from the sperm cells of salmon trout or chum salmon, then purified. It appears on ingredient lists as sodium DNA. This is the form behind the original clinical research and behind the Korean skin-booster trend, which is why salmon DNA skincare still carries the most scientific weight.
In our comparison of the best PDRN creams, salmon PDRN is used by Feel1, Medicube, Anua, Rejuran (as a patented c-PDRN, listed as hydrolyzed DNA) and Abib.
What plant and fermented PDRN is
“Plant PDRN” is a marketing term for DNA-derived or DNA-like ingredients sourced from something other than fish. The sources vary a lot:
- Seaweed / algae: Isntree uses sodium DNA from Wando seaweed. Dermatology literature also mentions PDRN sourced from red algae (Porphyra).
- Ginseng: VT Cosmetics markets a ginseng-derived PDRN and describes its cream as free from animal-derived ingredients.
- Probiotic or fermented: Dr.Althea’s Reju 5000 and SKIN1004’s PDRN 1.5 Cream use lab-fermented, vegan PDRN.
- Centella: Mary&May uses a CICA PDRN derived from centella.
Salmon vs plant PDRN side by side
| Salmon PDRN | Plant / fermented PDRN | |
|---|---|---|
| Origin | Purified salmon DNA | Seaweed, ginseng, centella, probiotics |
| On the label | Sodium DNA (or hydrolyzed DNA) | Often sodium DNA; sometimes a branded complex |
| Research base | Most published PDRN research | Newer and smaller |
| Vegan | No | Usually yes |
| Who it suits | Those who want the most studied form | Vegans, fish-allergy concerns, plant-first routines |
Is vegan PDRN as good as salmon PDRN?
This is the question behind the searches for “vegan PDRN vs salmon PDRN,” and the fair answer is: we do not know yet. Most published PDRN research, including the key reviews and the 2026 split-face eye-cream study, used salmon-derived material. Plant and fermented alternatives may behave similarly, but there is much less public data on them, and each brand’s ingredient is its own material.
That does not make plant PDRN creams worse creams. A good formula depends on everything in the jar: the humectants, the barrier lipids, the soothing agents, the texture. Some of the gentlest creams in our lineup use fermented PDRN, and they are excellent choices for sensitive skin.
A word on “ppm” numbers
Plant and salmon PDRN creams alike often advertise big concentration figures. Be careful comparing them. Some brands quote the amount of their whole PDRN ingredient complex, others the pure DNA, and the figure on the front does not always match what the ingredient list suggests. That is why we never compare those numbers, and why our table shows the source rather than a “strength.”
Is salmon DNA skincare ethical and safe?
Salmon PDRN is typically a by-product of the fishing and aquaculture industry, which some people find reassuring and others do not. If you avoid animal products, plant or fermented PDRN is the obvious choice. If you have a fish allergy, speak with your doctor before using salmon-derived skincare; purified DNA contains very little protein, but it is sensible to check. For anyone with sensitive skin, a patch test is always a good idea whatever the source.
How to choose
- You want the most studied form and you are happy with a marine ingredient: choose salmon PDRN, ideally in a formula with peptides and moisture-holders.
- You are vegan or plant-first: look at Isntree (seaweed) for firming, VT (ginseng) for a budget capsule texture, or SKIN1004 and Dr.Althea (fermented) for calm skin.
- Your skin is reactive: focus on soothing, fragrance-light formulas first and the PDRN source second.
For the basics, read what PDRN cream is. To build it into a routine, see how to use PDRN cream, and if lines are your focus, our guide to PDRN cream for wrinkles over 40 is next.
Our pick if you want PDRN and peptides in one daily cream: Feel1 PDRN Peptide Anti-Aging Cream (salmon PDRN, an 11-peptide complex, niacinamide, ectoin). View deal · all 10 compared. Commercial link, we are commercially connected with Feel1.
FAQ
Is vegan PDRN as good as salmon PDRN?
Nobody can say for sure yet. Most published PDRN research used salmon-derived DNA, so salmon PDRN has the longer track record. Plant and fermented versions are newer, with less public data, and each brand’s ingredient is different. A vegan PDRN cream can still be an excellent moisturizer; judge the whole formula, not the source alone.
What is salmon DNA cream?
Salmon DNA cream is another name for a PDRN cream that uses PDRN purified from salmon, usually listed as sodium DNA. It is the classic form of the ingredient and the one behind most of the research. In a cream it is combined with other actives such as peptides, niacinamide or hyaluronic acid for hydration and a smoother look.
Where does plant PDRN come from?
Plant PDRN is made from non-animal sources. Brands in our comparison use seaweed (Isntree), ginseng (VT), centella (Mary&May) and probiotic or lab-fermented material (Dr.Althea, SKIN1004). Researchers have also described PDRN from red algae. Each brand’s ingredient is its own material, so they are not interchangeable.
Can I use salmon DNA skincare if I have a fish allergy?
Purified DNA contains very little protein, but if you have a fish allergy it is sensible to ask your doctor before using salmon-derived skincare, and to patch-test carefully. A plant-based or fermented PDRN cream is an easy alternative that avoids the question altogether.
Sources
- Squadrito et al., Frontiers in Pharmacology, 2017 (pharmacological activity and clinical use of PDRN): https://pmc.ncbi.nlm.nih.gov/articles/PMC5405115/
- Polynucleotides and polydeoxyribonucleotides in dermatology: a narrative review, Journal of Cutaneous and Aesthetic Surgery: https://jcasonline.com/polynucleotides-and-polydeoxyribonucleotides-in-dermatology-a-narrative-review/
- Park et al., Pharmaceutics, 2025 (skin penetration and topical delivery of PDRN): https://pmc.ncbi.nlm.nih.gov/articles/PMC12473307/
- Ye et al., PLoS One, 2026 (randomized split-face study, PDRN eye cream vs retinol): https://pubmed.ncbi.nlm.nih.gov/42430369/