Polynucleotides: From Salmon DNA to Skin Regeneration
In this issue of the everskin Skin Longevity Journal, we explore how these molecules rebuild your skin from within, what the evidence says, and who benefits most.
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One of the more effective modern tools for skin regeneration has its origins in an unusual observation in ancient times: fish skin placed on wounds seemed to accelerate healing.
Centuries later, science traced this effect to the DNA fragments within those cells – what is today refined into compounds known as Polynucleotides.
You may have heard the term “Salmon Sperm Facial”. While the nickname is catchy, the reality is more technical and far less sensational. Most polynucleotides used in aesthetic medicine are derived from salmon or salmon trout DNA – in practice most often from their sperm cells, because this DNA is naturally very pure and easy to process. What reaches your skin are highly purified DNA fragments, not whole cells or proteins.
The Science and the Benefits: How Polynucleotides Work and What to Expect
Polynucleotides (often abbreviated as PDRN, Polydeoxyribonucleotides, or simply PN) have been shown in laboratory and clinical studies to:
- Reduce or prevent fine lines by stimulating fibroblast activity, the cells that build collagen, elastin, and hyaluronic acid
- Support skin firmness via the same mechanism
- Reduce inflammation by activating adenosine A2A receptors, which promote tissue repair and microcirculation
Put simply: Polynucleotides provide direct cellular stimulation; they help skin cells perform better, not by adding material from outside, but by enhancing their ability to repair and regenerate.
The effects are cumulative, as each session builds on the previous one through ongoing collagen remodeling.
Polynucleotides are best viewed as part of a long-term regeneration plan, not a quick fix.
Are Polynucleotides Right For Me?
At everskin, we consider Polynucleotides a potentially central pillar in any skin longevity strategy.
They can be highly effective stand-alone, but have also shown great complementary effects to other evidence-based treatments such as Medical RF Microneedling.
Polynucleotides are less suitable as the singular solution for deep folds or significant volume loss, where other forms of biostimulation may be more appropriate.
The Bottom Line
Polynucleotides are a scientifically grounded way to reactivate your skin’s own regenerative capacity. They stimulate collagen production, improve texture, and enhance elasticity from within and are a great early step in a skin longevity routine
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