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Skin · Updated October 2026

PDRN skincare (salmon DNA): what it can and can’t do

Salmon DNA is the ingredient of the moment. The research behind it is real — just mostly not for the serum in your cart.

Updated October 2026

Unbranded skincare tubes, a serum bottle and a sheet mask on a blush background

What PDRN is

PDRN (polydeoxyribonucleotide) is a mix of DNA fragments, usually taken from salmon sperm DNA. You'll see it in serums and creams like medicube's PDRN serum (#S01) and ANUA's PDRN cream (#S02).

Where the evidence is strongest: injections

The best data comes from injectables. In a 27-person split-face trial, a polynucleotide injectable beat a hyaluronic acid filler at 16 weeks. Injectable PDRN is not FDA-approved for cosmetic use in the US.

What we know about serums and creams

Very little research. The first published topical clinical study came out in late 2025. It was small, used a plant-derived, low-molecular-weight PDRN, and showed a modest gain in eye-area elasticity after 4 weeks.
Size matters. Most PDRN fragments are far larger than the roughly 500 Dalton size that passes the skin barrier — and brands rarely disclose molecular weight.
So: any results you notice from a serum likely come from its co-ingredients — hyaluronic acid, glycerin, niacinamide, peptides.

Why it's everywhere

The global PDRN skincare market is projected to reach $811.4 million by 2035, according to figures cited by Dermatology Times.

If you want to try it

Who might enjoy it: people who like hydrating serums — treat it as a hydration product.
Check the label for the co-ingredients doing the work (hyaluronic acid, glycerin, niacinamide, peptides) and whether the brand states the molecular weight.
Patch test on a small area before using it on your face.
Pregnant? Ask your doctor before trying new actives.

Products mentioned

Illustrative photo: Plain dropper serum bottle

S01Illustrative photo

Skin

medicube PDRN Pink Peptide Serum with Salmon DNA

Face serum with PDRN (salmon DNA) and peptides.

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Illustrative photo: Open unbranded moisturizing cream jar

S02Illustrative photo

Skin

ANUA PDRN Hyaluronic Acid 100 Moisturizing Cream

Moisturizing cream with PDRN and hyaluronic acid.

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FAQ

What is PDRN in skincare?

PDRN (polydeoxyribonucleotide) is a mix of DNA fragments, usually taken from salmon sperm DNA.

Do PDRN serums work?

The strongest evidence is for injectables. Evidence for creams and serums is very limited: the first published topical clinical study (late 2025) was small and showed a modest eye-area elasticity gain after 4 weeks.

Is PDRN safe?

Injectable PDRN is not FDA-approved for cosmetic use in the US. For serums, patch test first, and if you are pregnant ask your doctor before trying new actives.

Can PDRN get into the skin?

Most PDRN fragments are far larger than the roughly 500 Dalton size that passes the skin barrier, and brands rarely disclose molecular weight. Results from a serum likely come from its other ingredients.

Sources

Dermatology Times — Social media mythbusters: PDRN serums

Every number on this page comes from the sources below. Last updated October 2026.