Rejuran (PDRN) Injections: What Salmon DNA Actually Does for Skin
The treatment being called a "salmon sperm facial" online is really polynucleotide therapy — PDRN, purified fragments of DNA derived from salmon, micro-injected into the skin. Nothing about it involves sperm, and nothing about it fills or plumps the face. At The Aesthetic Edge, it's delivered using Rejuran, the Korean-developed PDRN product line, and what it actually does is signal your skin's own repair processes rather than sit in the skin as added volume.
If you've searched the trending name and landed here confused about what's actually in the syringe, this is the plain version: it's a repair signal, not a filler, and the change builds gradually rather than appearing the moment the needle comes out.
Is it really salmon sperm?
No. The name is marketing shorthand that stuck because it's memorable, not because it's accurate. What's actually injected is polynucleotides — purified fragments of DNA derived from salmon, processed to remove proteins and other biological material before they ever reach a syringe. The substance used at The Aesthetic Edge is Rejuran, a pharmaceutical-grade product, not a raw biological extract. The dramatic name gets the search traffic; the plain description — purified DNA fragments used for their tissue-repair signalling — is what's actually happening on your skin.
How does PDRN actually work on the skin?
Polynucleotides don't fill, plump, or add volume anywhere. Instead, the DNA fragments act as a signal that prompts your skin's own repair and regeneration processes to switch on. That's the core distinction worth understanding before anything else: a filler is a substance placed under the skin to physically occupy space and change contour. PDRN does none of that. It's placed into the skin to trigger a response, and the response comes from your own tissue — not from a product sitting there doing the work for you.
That mechanism has a direct consequence for what to expect. Because the treatment relies on your skin's own repair processes rather than an immediate physical effect, results are not instant. Hydration, elasticity and fine lines improve gradually, building across the weeks that follow a session as the repair response takes hold — not a same-day transformation, and not something a single injection will produce on its own.
What does a Rejuran course actually involve?
A typical course is 2 to 4 sessions, spaced 2 to 4 weeks apart, delivered as micro-injections into the skin using fine needles after numbing cream is applied. Downtime is minor — small injection-point bumps and mild redness at the treated sites, which usually settle within 24 to 48 hours. This is administered by a doctor: injection depth, dose and exact placement are clinical decisions specific to your skin, and the consultation itself screens for allergies and any conditions that would make injecting inadvisable, before treatment begins. Rejuran also comes in a few different formulations aimed at different concerns — skin texture, the under-eye area, and scalp — and your doctor confirms which one suits your specific concern rather than defaulting to a single product for everyone who walks in.
What does it treat well, and what does it not do?
PDRN is well suited to concerns about skin quality: texture, hydration, elasticity, and fine lines that come from the skin itself looking tired or thin rather than from lost volume or sagging contour. One area it's particularly often chosen for is the delicate under-eye region — thin, crepey under-eye skin responds well to a treatment aimed purely at skin quality, in a spot where adding volume can easily look wrong or unnatural. Because the treatment adds no volume and changes nothing about the shape of your face, your features stay exactly as they are. What changes is how the skin itself behaves — better hydration, more bounce, a healthier surface — not the contour or structure underneath it.
That also means it's not the right tool for concerns that are actually about lost volume, deep static folds, or contour changes that need physical filling or lifting. If what you're looking at in the mirror is more about shape than texture, that's a different conversation to have at your consultation.
How is this different from skin boosters or Profhilo?
This is one of the most common points of confusion, and it comes down to mechanism rather than marketing. Skin boosters and Profhilo are both hyaluronic acid-based — they work by hydrating the skin, holding water within the tissue to plump and smooth it from within. Polynucleotides work through an entirely different pathway: rather than supplying hydration directly, the DNA fragments prompt your skin's own repair and collagen-building response.
Which one suits you better isn't a question with a universal answer — it depends on whether your primary concern is dryness and dehydration, where a hyaluronic acid-based booster directly addresses the water deficit, or overall skin quality and a slower repair-driven improvement, where PDRN's signalling mechanism does more of the work. For some patients, a doctor may recommend one over the other; for others, the two can complement each other as part of a broader skin-quality plan. That distinction — and which path fits your actual skin — is exactly what the consultation is for.
Bangalore skin, and why this comes up here specifically
Bangalore's mix of traffic pollution, hard water in several neighbourhoods, and long hours of screen-lit indoor air conditioning all show up in skin quality complaints before they show up as volume loss — dullness, dehydration, a rougher surface texture, fine lines that seem to appear earlier than expected. That's precisely the category of concern PDRN is built to address, which is part of why it's become a common search term among patients in the city browsing between the Indiranagar and Bellandur clinic locations. It's not a treatment aimed at reversing years of volume loss; it's aimed at the everyday wear the skin shows from climate, pollution and screen time, and that's a genuinely common starting point for a lot of people booking a first consultation here.
What actually happens at a consultation
Before any injection is planned, the doctor examines your skin, discusses what you're hoping to change, and confirms whether PDRN — and which Rejuran formulation — is the right fit for your concern, or whether a different treatment addresses it better. Screening for allergies and any conditions that would make injecting inadvisable happens at this stage too, before anything touches your skin. If a hyaluronic acid-based option like a skin booster or Profhilo turns out to be the better match for what you're describing, that gets discussed directly rather than defaulting to whichever treatment is trending.
If the "salmon sperm facial" headline is what brought you here and you want to know whether the actual treatment — Rejuran PDRN — is right for your skin, the next step is a proper look at your skin rather than another article. Book a consultation at The Aesthetic Edge at either our Indiranagar or Bellandur location, and let a doctor tell you plainly whether this is the treatment your skin actually needs.