What is the Salmon Sperm Facial?
Rejuran PN Explained
By Lynn Adami BSN RN-BC — New Skin by Lynn, San Mateo
You may have seen it trending on social media — the salmon sperm facial. The name alone is enough to make most people do a double take. But behind the provocative nickname is one of the most clinically sophisticated skin biorevitalization treatments available today — and one that Lynn Adami BSN RN-BC has been offering at New Skin by Lynn in San Mateo with consistently impressive results.
WHY IS IT CALLED THE SALMON SPERM FACIAL?
The informal name comes from the treatment's active ingredient — polynucleotides derived from salmon DNA. Polynucleotides — also written as PDRN, short for Polydeoxyribonucleotide — are long chains of nucleic acids extracted from salmon sperm cells through a highly controlled purification process. The final product used in treatment contains no sperm cells — only the purified DNA fragments that give the treatment its regenerative properties.
The clinical name for the treatment is Rejuran — a Korean-developed skin biorevitalization product that has been widely used in Asia for over a decade and is now gaining significant traction in the United States and Europe. At New Skin by Lynn it is offered as the Rejuran PN treatment — the PN standing for polynucleotide.
HOW DOES REJURAN PN WORK?
Polynucleotides work by stimulating the skin's own repair and regeneration processes from within. When injected into the dermis — the deeper layer of the skin beneath the surface — PDRN activates fibroblast cells to produce new collagen and elastin while simultaneously supporting the skin's natural healing mechanisms.
Unlike dermal fillers which add volume by physically filling space — or neuromodulators which relax muscles to soften lines — Rejuran PN works biologically. It does not add anything artificial to the skin. It signals the skin to repair and regenerate itself using its own cellular machinery. This is why the treatment is categorized as biorevitalization rather than augmentation — the goal is to restore the skin's own vitality rather than to alter its structure.
The polynucleotides in Rejuran PN are highly biocompatible — meaning the body recognizes and accepts them without triggering an immune response. Despite the salmon origin the treatment is extremely well tolerated across skin types and tones.
WHAT DOES REJURAN PN TREAT?
Rejuran PN addresses a broad range of skin quality concerns — making it one of the most versatile biorevitalization treatments available:
Fine lines and skin laxity — by stimulating new collagen and elastin production Rejuran PN gradually improves skin firmness and smoothness from within.
Dull and dehydrated skin — PDRN improves the skin's internal moisture balance for a naturally plump and luminous complexion.
Enlarged pores — consistent treatment reduces the appearance of enlarged pores particularly on the nose cheeks and upper lip.
Uneven skin texture — cellular repair at the dermis level creates a progressively smoother and more refined skin surface.
Post-acne scarring — Rejuran PN's tissue repair properties support gradual remodeling of acne scarred skin — particularly when combined with microneedling.
Periorbital rejuvenation — the delicate skin around the eyes responds exceptionally well to Rejuran PN's gentle regenerative approach. This is one of the most popular applications at New Skin by Lynn — clients seeking improvement in crow's feet, under-eye hollowing, and overall eye area vitality without more aggressive treatments.
WHO IS REJURAN PN FOR?
Rejuran PN is suitable for most skin types and tones — including those who may not be ideal candidates for more aggressive treatments. It is particularly well suited for:
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Clients in their 30s and 40s noticing early signs of skin quality decline — dullness, loss of firmness, and first fine lines
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Clients seeking gradual natural-looking improvement rather than dramatic change
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Clients with sensitive or reactive skin who have limited options for more intensive treatments
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Clients looking to maintain results following other treatments such as microneedling or VI Peel
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Clients specifically concerned about the eye area and periorbital aging
Rejuran PN is not a replacement for dermal fillers when volume restoration is the primary goal — nor for neuromodulators when dynamic wrinkle relaxation is needed. It works best as a skin quality foundation treatment — either as a standalone protocol or as a complement to other procedures.
WHAT DOES A REJURAN PN SESSION INVOLVE?
At New Skin by Lynn Rejuran PN is administered through a series of microinjections delivered into the dermis using a fine needle. A topical numbing cream is applied before treatment for comfort. The treatment itself takes approximately 30-45 minutes depending on the areas being addressed.
Following treatment clients typically experience mild redness and small papules — tiny bumps at the injection sites — that resolve within 24-48 hours. There is no significant downtime and most clients return to normal activities the same day.
A foundational protocol of 3-4 sessions spaced three to four weeks apart is recommended for optimal results. Maintenance sessions every 3-6 months support the ongoing benefits.
WHAT RESULTS CAN CLIENTS EXPECT?
Rejuran PN delivers progressive results — meaning improvements develop gradually over several weeks as new collagen forms and cellular repair takes effect. Most clients begin noticing a difference in skin quality and luminosity after the second session. Full results from a foundational protocol are typically visible 4-6 weeks after the final session.
Clients consistently describe their skin as looking healthier, more hydrated, and more like itself — a refreshed quality that does not look done or treated. This natural-looking outcome is one of the primary reasons Rejuran PN has developed such a loyal following among clients who value subtle sophisticated results.
LYNN'S CLINICAL PERSPECTIVE
"Rejuran PN is one of the treatments I find myself recommending most consistently — particularly for clients who feel their skin has lost its vitality but are not ready for more aggressive intervention. The periorbital results are particularly compelling. The skin around the eyes is so delicate that many treatments simply cannot be used safely in that area — Rejuran PN reaches it beautifully with minimal risk and genuinely meaningful improvement. It is the kind of treatment where clients come back and say their skin just looks better — which is exactly the outcome we are aiming for."
— Lynn Adami BSN RN-BC, New Skin by Lynn
BOOK A CONSULTATION
Interested in Rejuran PN at New Skin by Lynn? Book a complimentary consultation with Lynn to discuss whether Rejuran PN is appropriate for your skin concerns and goals.
New Skin by Lynn is located at 241 S San Mateo Dr, Ste 7, San Mateo, CA 94401 — serving clients from Burlingame, Hillsborough, Redwood City, and throughout the San Francisco Bay Area.
Phone or Text: 650-484-4404 newskinbylynn.com