Aesthetic medicine

Salmon sperm for your skin: what's behind the most viral facial

You've seen it on social media under catchy names, but behind the hype there is a serious medical treatment: polynucleotides — purified fragments of salmon DNA injected into the skin to improve its quality from within. Here is what it really does, what it doesn't, and what the session is like.

6 June 20267 min readReviewed by Dr. Claudia Liuzza
Facial treatment with salmon DNA polynucleotides at an aesthetic medicine clinic

The key point

The "salmon sperm facial" is actually polynucleotides: an injectable aesthetic medicine treatment that neither fills nor freezes. It deeply hydrates and stimulates skin regeneration. The result is plumper, more elastic, more luminous skin with a rested look. It doesn't change your features — it improves the quality of your skin.

What it isWhat it improvesThe sessionResultsVs. hyaluronic acidFAQ

What exactly is "salmon sperm"?

The viral name confuses more than it explains. What is injected is not sperm but polynucleotides: DNA chains extracted and purified from salmon, chosen because they are highly compatible with our tissue. They have been used in medicine for years — in wound healing, for example — and have moved into aesthetic medicine as a skin-regenerating treatment.

The key difference from other injectables: it adds no volume and relaxes no muscle. It works on the terrain — the skin itself — promoting deep hydration and the production of collagen and elastin.

What it really improves (and what it doesn't)

  • Skin quality: finer texture, more elasticity, that "good face" effect.
  • Deep hydration: dull or dehydrated skin recovers its glow.
  • Under-eye area: one of its most requested uses, because that skin is too thin for other treatments.
  • Fine lines: softens the "crepey" look caused by loss of skin quality.

What it does not do: it doesn't replace a filler when volume is missing, it doesn't lift sagging tissue, and it doesn't erase deep expression lines. Other tools exist for that, and combining them is often the sensible plan. That's why the prior assessment matters more than the treatment's name.

If you've seen the terms "PDRN" or "polynucleotides"

They are the same thing. PDRN is the internationally better-known version of the same principle: purified salmon DNA fragments with a regenerative purpose.

What the in-clinic session is like

It is a quick, walk-in treatment. After the assessment, very superficial microinjections are placed in the areas to treat — usually the face, eye contour or neck — with or without numbing cream depending on your sensitivity. Afterwards you can go back to your normal routine; small bumps or dots may remain for a few hours, or a mild bruise.

20-30 minApproximate session length.
2-4 sessionsUsual protocol, a few weeks apart.
0 daysOff work: normal life the same day in most cases.

When you see the result

Don't expect an overnight change: this is a regenerative treatment, not a filler. Most patients notice better hydration and glow after the first sessions, and the improvement in elasticity and texture consolidates progressively as the protocol is completed. The effect is natural — people will see you rested, not "done" — and is maintained with periodic top-up sessions.

As with any medical treatment, the response varies from person to person depending on the starting condition of the skin, age and habits (sun, smoking, sleep).

Is your skin a candidate for polynucleotides?

In an in-person assessment we look at the real condition of your skin and tell you honestly whether this treatment is what you need or whether there is a better option for your case.

Request assessment

Polynucleotides or hyaluronic acid?

It's the most common question, and the short answer is: they don't compete — they do different things. Hyaluronic acid provides immediate volume or hydration; polynucleotides regenerate skin quality over the medium term. In fact, one of the most rewarding combinations is preparing the skin with polynucleotides and then treating whatever needs volume.

  • I want volume (lips, cheekbones, folds): hyaluronic acid.
  • I want better skin (texture, dark circles, glow): polynucleotides.
  • I want both: they are planned in stages during the consultation.

Is it safe?

The polynucleotides we use are CE-marked medical products, highly purified and with high biocompatibility. Even so, it is a medical treatment: it must be indicated and performed by a doctor after ruling out contraindications (documented fish allergy for some products, pregnancy and breastfeeding, active infections in the area, among others). The usual side effects are mild and temporary: small wheals, redness or a bruise at the injection point.

Frequently asked questions

Is it really salmon sperm?
No. They are polynucleotides: purified DNA fragments of salmon origin. The viral name is marketing; the product is a regulated injectable medical device.
Does the treatment hurt?
They are superficial microinjections and well tolerated. If your skin is sensitive, numbing cream is applied before the session.
How many sessions do I need?
The usual protocol is 2 to 4 sessions a few weeks apart, with periodic top-ups to maintain the result. It is adjusted to your skin during the consultation.
Can I go back to normal life afterwards?
Yes, in most cases the same day. Small bumps or a mild bruise may remain for a few hours or days.
Does it work for dark circles?
It is one of its most frequent indications, because it improves the quality of that very thin skin. The consultation determines whether your dark circle is skin-related, volume-related or mixed.
How much does it cost in Barcelona?
It depends on the product, the treated area and the number of sessions. A personalised quote is given after the assessment, with no obligation.
Dr. Claudia Liuzza

Dr. Claudia Liuzza

Plastic surgeon and aesthetic medicine doctor in Barcelona. Regenerative treatments with honest indication: skin first, product second.