PDRN ("Salmon DNA") Skincare: Hype or Help?

October 9, 2026 · By Raashid Haque, MD

This video uses an AI avatar of Dr. Haque. The script and medical content are his.

PDRN, short for polydeoxyribonucleotide, is the latest ingredient to take over skincare feeds. It's a mixture of purified DNA fragments, traditionally taken from the sperm of salmon or salmon trout, which is why you'll see it called "salmon DNA" or, less politely, "salmon sperm." So no, you're not rubbing raw fish on your face. Some newer versions are made from plants or by fermentation instead.

Does it work?

Early research is promising, but it is early. The strongest evidence so far involves injections given by a clinician, and much of the longer-standing clinical research looks at wound healing. In the US, injectable PDRN is not FDA-approved for cosmetic use.

For creams and serums, the evidence is much thinner. One small early study of a topical PDRN product used around the eyes reported improved skin elasticity after 4 weeks. It was a single small study, and the PDRN in it came from a plant, not from salmon.

Why a serum isn't an injection

PDRN fragments are large, so it's unlikely that much of it gets through the skin from a cream or serum. Many PDRN products also contain other ingredients, such as hyaluronic acid or niacinamide, which may account for some of the benefit people notice. And not every PDRN product contains the same type or amount of PDRN, so one product's results don't carry over to another.

If you want to try it

Go one at a time. Introduce a new product on its own, and stop if it irritates your skin.
Choose established brands. Skin care products don't need FDA approval before they're sold, so the brand's track record matters.
Keep expectations modest. Think of it as a possible extra, not a replacement for sunscreen and a good moisturizer.

If you've found a PDRN product you like, tell me about it on our feedback page.

Further Reading