Salmon DNA has become one of the most talked-about ingredients in aesthetics, largely thanks to a nickname that does it no favors. Here is what PDRN actually is, what microneedling adds to it, what the research shows, and — the part almost nobody publishes — where it stands with the FDA in the United States.
What “salmon DNA” actually means
The active ingredient is PDRN, or polydeoxyribonucleotide: a purified fragment of DNA extracted from salmon milt. It is filtered, sterilized and stripped of protein, so what remains is a chain of nucleotides — the same building blocks human DNA is made of. Salmon is used because these fragments are highly compatible with human tissue and available at consistent purity.
So no, it is not a facial made of salmon sperm, despite what the internet decided to call it. It is a purified nucleotide compound with a decade of published research behind it in wound healing and skin regeneration.
How it is thought to work
Research points to two mechanisms. PDRN appears to activate the adenosine A2A receptor on cell membranes, which raises intracellular cAMP and shifts cells toward anti-inflammatory and pro-angiogenic activity, including the release of vascular endothelial growth factor. Separately, PDRN feeds the salvage pathway — it supplies pre-formed nucleotide fragments that cells can reuse to build new DNA rather than synthesizing it from scratch, which is metabolically cheaper.
In practical terms, the research describes a compound that supports fibroblast activity, collagen production and tissue repair. Animal wound models have shown type I and type III collagen elevated 1.36-fold and 3.07-fold respectively compared with placebo.
Why combine it with microneedling
PDRN molecules are large. Applied to intact skin, most of what you paint on stays on the surface. Microneedling solves the delivery problem: fine needles create temporary microchannels through the outer barrier, and a 2026 review in the International Journal of Molecular Sciences states directly that microneedling “improves PDRN absorption by creating microchannels in the skin that bypass the natural skin barrier,” allowing efficient delivery of large PDRN molecules into the dermis.
The needling itself is not passive either. Controlled micro-injury triggers the skin’s own collagen induction response. So the treatment works on two tracks at once — the mechanical stimulus and the compound being delivered into it. Worth noting for balance: a review of the microneedling literature in Aesthetic Plastic Surgery rated the overall evidence at Level IV and called for higher-quality studies, so we describe microneedling as well-established in practice rather than definitively proven in trials.
The FDA question, answered plainly
This is where we differ from most pages you will read on this subject.
There is no FDA-approved or FDA-cleared injectable PDRN or polynucleotide product in the United States. Injectable polynucleotide skin boosters — Rejuran being the best-known brand — are approved in South Korea, and PDRN has been approved in Italy since 1994 for wound care. Neither of those confers United States approval.
What that means for you: in the US, PDRN is used topically, applied during a microneedling treatment. That is the legal and appropriate form here, and it is the form we offer. Microneedling devices themselves are FDA-regulated Class II medical devices, and specific systems carry 510(k) clearances — though those clearances are narrow. The SkinPen system, for example, is cleared specifically for improving the appearance of facial acne scars in adults 22 and older.
If a clinic tells you it is “injecting FDA-approved salmon DNA,” one of those two words is wrong. Ask which.
What to expect
A session runs about 30 minutes plus numbing time. We cleanse, apply topical anesthetic, and let it work for 20 to 30 minutes. The microneedling pass follows, with depth adjusted by area — shallower around the eyes, deeper on textured cheeks. The PDRN serum is applied through the treatment, and we finish with a calming barrier product and sunscreen.
Expect to look like you have a moderate sunburn for the rest of the day. Redness and mild swelling usually settle within one to three days. Skip makeup for 24 hours, skip the gym and the pool for 48, and stay out of direct sun for at least two days — published guidance recommends avoiding sun and sun lamps for 48 hours afterward. In Florida that means a hat, not just optimism.
How many sessions, and when you will see something
The protocol described in the dermatology literature is three to four sessions two to four weeks apart for the initial phase, with results becoming apparent at four to eight weeks and continuing to improve over three to six months. That timeline is real. This is a collagen treatment, and collagen is slow.
What is honestly documented: the pivotal Phase III trial that established injectable polynucleotide for crow’s feet enrolled 72 patients and found it non-inferior to hyaluronic acid filler — 95.7% versus 94.3% improvement at 12 weeks — with fewer local adverse events, 31.9% versus 48.6%. A 2025 review reports a 61.4% reduction in periorbital wrinkles at 12 weeks with the injectable Korean product. Those numbers come from injected polynucleotide, not from a topical microneedling protocol, and we will not pretend otherwise. A recent narrative review in the Journal of Cutaneous and Aesthetic Surgery puts it bluntly: current evidence for these compounds is “fraught with inconsistencies.”
Who it suits
It works best for people with early to moderate skin quality concerns: fine lines, dullness, enlarged pores, uneven texture, mild acne scarring, crepiness around the eyes. It is a skin-quality treatment, not a volume treatment — it will not replace filler for lost structure, and it will not do what Botox does for movement lines.
It is not appropriate during an active skin infection or acne flare, for anyone with a history of keloid scarring, during pregnancy, or on skin currently on isotretinoin. Anyone with a salmon or fish allergy should tell us before booking.
How it compares
Versus standard microneedling: same mechanical stimulus, with a regenerative compound delivered into the channels. Versus microneedling with PRP: PRP uses your own platelets, drawn from your blood the same day; PDRN is a standardized off-the-shelf compound, so there is no blood draw and no variability between patients. We offer both — Microneedling PRP at $299 and Microneedling with Salmon DNA at $249 — and choose between them based on your skin and your preference.
What it costs at AETERNA
- Microneedling with Salmon DNA (PDRN) — $249 per session, about 30 minutes.
- Salmon DNA Club — $199/month, one session monthly plus priority booking, 10% off other services and a monthly skin assessment.
US clinics generally charge $450 to $800 for a comparable topical PDRN and microneedling session, with packages running $1,300 to $2,800. Financing with 0% APR options is available if you would rather spread a package across months.
Frequently asked questions
Does it hurt? With topical numbing, most people describe pressure and vibration rather than pain.
How much downtime? Typically one to three days of redness, occasionally light flaking around day three.
Is it safe for darker skin tones? Microneedling is generally well tolerated across skin types, which is one of its advantages over ablative lasers. We adjust depth and post-care accordingly.
Can I combine it with other treatments? Yes — commonly with Botox or fillers, scheduled on separate days. We plan the sequence at your consultation.
How long do results last? Improvements build over three to six months. Most people maintain with a session every three to four months.
Book at West Palm Beach or Fort Myers, or see all treatments and prices.
This article is general information, not medical advice. Results vary between individuals. Injectable polynucleotide products are not FDA-approved in the United States; PDRN is used here as a topical applied during microneedling. Treatment is provided following evaluation by a licensed provider.
Sources
- Choi et al., Int J Mol Sci 2026 — PDRN mechanisms and combined delivery strategies
- Pak et al., J Korean Med Sci 2014 — Phase III polynucleotide vs hyaluronic acid trial
- Park et al., Applied Sciences 2025 — polydeoxyribonucleotides in skin disease
- Arora, J Cutan Aesthet Surg 2026 — narrative review of polynucleotides in dermatology
- FDA — Regulatory Considerations for Microneedling Products
- FDA De Novo DEN160029 — SkinPen Precision System
- Microneedling / percutaneous collagen induction — evidence review, Aesthetic Plast Surg