What does PDRN mean in skincare?

PDRN stands for polydeoxyribonucleotide: fragments of DNA, usually purified from salmon or trout sperm. Pharmacologists describe it as a registered drug for tissue repair, and cosmetic brands now add it to serums and creams, where it is often listed as sodium DNA.

Does PDRN skincare work?

There is not enough evidence to say. A 2026 systematic review of randomised trials found PDRN studied as injections and in wound care, but no trials of cosmetic PDRN applied to the skin. Treat a PDRN serum as a hydrating step and judge it on its whole formula.

Is a PDRN serum the same as a salmon DNA injection?

No. Injectable PDRN and polynucleotides are given by clinicians and are the subject of most of the research. A serum you apply yourself is a cosmetic product, and results from injection studies cannot be assumed to apply to it.

Not usually: PDRN is typically salmon-derived. Some brands sell plant-labelled versions — Medicube offers a rose PDRN option it labels vegan — so check the variant and its ingredient list.

Snail mucin vs PDRN: which is better?

Neither has strong evidence as a skincare ingredient. Snail mucin has a few small cosmetic studies behind its hydrating and fine-line claims; PDRN’s research is mostly on injections and wound healing. If you want hydration, both are optional extras to a basic routine of cleanser, moisturiser and sunscreen.

Ingredient library / DNA-derived ingredient

What is PDRN in skincare?

Also on labels as: Polydeoxyribonucleotide · Sodium DNA · Salmon DNA

Edited by Kaiser Khan · Updated 1 October 2026 · Editorial policy

Quick answer

What is PDRN?

PDRN (polydeoxyribonucleotide) is a mixture of DNA fragments, usually purified from salmon sperm, that is also a registered drug used in tissue repair. In skincare it appears in serums and creams, often listed as sodium DNA. Most research involves injections or wound care; evidence for PDRN applied to the skin at home is thin, so treat skincare claims cautiously.

What does PDRN do?

In pharmacology research, PDRN acts on adenosine A2A receptors — the mechanism behind its use in tissue repair and wound healing
Clinics use injectable PDRN and related polynucleotides; those are medical procedures, not the same thing as a serum
In skincare, brands use it for hydration and “skin-boosting” claims, but a 2026 systematic review found no randomised trials of PDRN as a cosmetic product applied to the skin

Who should use PDRN?

Anyone curious about the ingredient who is happy to treat a PDRN serum as a hydrating cosmetic step rather than a treatment. Salmon-derived PDRN is not suitable for vegans; check which source a product uses.

How do you use PDRN?

Use as the product directs — usually after cleansing and before moisturiser
Introduce one new serum at a time
Finish with sunscreen in the morning, as with any routine

What should you know before using PDRN?

Evidence for topical PDRN is thin: a 2026 systematic review of randomised trials found studies of injections and of wound care, but none of cosmetic serums or creams
Do not confuse a “salmon DNA” serum with PDRN or polynucleotide injections offered by clinics, which are medical procedures
One PDRN may not behave like another: a 2017 pharmacology review links its activity to DNA origin, molecular weight and manufacturing process
Read the full ingredient list — Medicube’s vegan “rose PDRN” version lists rose extract alongside sodium DNA, and its salmon version also lists fragrance

What does PDRN pair with?

Usually formulated in hydrating serums alongside niacinamide and peptides, as in Medicube’s PDRN Pink Peptide Serum. Layer it like any serum, before moisturiser, and follow each product’s directions.

General information, not medical advice. For a skin condition, pregnancy or persistent irritation, speak to a pharmacist, GP or dermatologist.

In the catalogue

Which products contain PDRN?

Named in each brand’s own listing

Medicube · Skin prep

PDRN Pink Peptide Serum

A useful place to separate a popular ingredient name from the practical question: does this serum fit your existing prep routine?

Read the guide ↗

Read further

Sources.

PDRN, answered

What does PDRN mean in skincare?: PDRN stands for polydeoxyribonucleotide: fragments of DNA, usually purified from salmon or trout sperm. Pharmacologists describe it as a registered drug for tissue repair, and cosmetic brands now add it to serums and creams, where it is often listed as sodium DNA.
Does PDRN skincare work?: There is not enough evidence to say. A 2026 systematic review of randomised trials found PDRN studied as injections and in wound care, but no trials of cosmetic PDRN applied to the skin. Treat a PDRN serum as a hydrating step and judge it on its whole formula.
Is a PDRN serum the same as a salmon DNA injection?: No. Injectable PDRN and polynucleotides are given by clinicians and are the subject of most of the research. A serum you apply yourself is a cosmetic product, and results from injection studies cannot be assumed to apply to it.
Is PDRN vegan?: Not usually: PDRN is typically salmon-derived. Some brands sell plant-labelled versions — Medicube offers a rose PDRN option it labels vegan — so check the variant and its ingredient list.
Snail mucin vs PDRN: which is better?: Neither has strong evidence as a skincare ingredient. Snail mucin has a few small cosmetic studies behind its hydrating and fine-line claims; PDRN’s research is mostly on injections and wound healing. If you want hydration, both are optional extras to a basic routine of cleanser, moisturiser and sunscreen.