What are polynucleotides (PDRN) in skincare?

Polynucleotides, often labeled PDRN, are purified DNA fragments used in aesthetic medicine and skincare to support repair signaling, hydration behavior, and tissue quality. They are often derived from salmon DNA because it can be purified and is structurally compatible with human tissue.

Is “salmon DNA” the same as PDRN?

In most aesthetic contexts, “salmon DNA” refers to polynucleotides/PDRN derived from salmon sources. The headline is marketing; the functional concept is DNA fragments used to support regenerative signaling.

What does PDRN actually do for the skin?

PDRN is generally used to support skin quality by encouraging repair signaling, improving hydration patterns, and supporting the tissue environment. It is commonly discussed for concerns like thin-looking skin, under-eye crepiness, post-treatment recovery support, and overall resilience.

What is the difference between injectable PDRN and topical PDRN?

Injectable PDRN delivers polynucleotides directly into the skin, where they can influence tissue behavior more directly. Topical PDRN products act primarily at the surface and upper layers and may support hydration and soothing, but they do not replicate the depth or effect of injections.

Is PDRN better than hyaluronic acid?

They serve different roles. Hyaluronic acid primarily supports hydration and plumping by binding water, while PDRN is positioned as a signaling ingredient that supports repair behavior and tissue quality. One is not universally “better”—the choice depends on the skin’s needs and the treatment goal.

Can PDRN replace fillers?

PDRN is not a structural volumizer and does not replace fillers for contour or volume restoration. It is typically used to support skin quality and the tissue environment rather than to create lift or rebuild facial architecture.

Who benefits most from polynucleotides?

Polynucleotides are often chosen by people focused on tissue quality—skin that looks thin, stressed, or less resilient, areas like under-eye crepiness, and recovery support after procedures. They are less likely to produce dramatic changes in advanced laxity or significant volume loss.

Where is PDRN being oversold?

PDRN is sometimes marketed as a dramatic anti-aging solution or a filler replacement. In reality, it is best understood as a supportive regenerative tool that may improve skin behavior and resilience, not a substitute for structural correction or instant contour change.

ENHANCING THE BEAUTIFUL YOU, NATURALLY

Expert skincare, real science, zero fluff.

Dr. Lazuk breaks down today’s top beauty trends, treatments, skincare ingredients, and anti-aging trends with clear, trustworthy guidance from an expert you can actually rely on.

CHIEF DERMATOLOGIST, DR. LAZUK's BLOG

AI Skin Analysis: Real or Hype?

Dr. Lazuk's avatar provides great insight on what to pay attention to, what really matters, and, more importantly, how this new technology can be extremely good for your overall skin health.

What Lab Results Can Tell You About Your Skin That Your Doctor Might Not

Dr. Lazuk
Feb 22
2 min read

What Lab Results Can Tell You About Your Skin That Your Doctor Might Not

By Dr. Lazuk, Co-Founder and CEO of Lazuk Cosmetics® | Esthetics® | Alpharetta, GA

Here's something that most standard skincare consultations never address.

Your bloodwork.

Vitamin D deficiency… is linked to impaired skin barrier function and increased inflammatory skin conditions.

Low iron… contributes to pallor, dullness, and impaired cell regeneration.

Thyroid dysfunction… dramatically affects skin texture, hydration, and hair quality.

Elevated inflammatory markers like CRP… signal systemic inflammation that shows up on your face before it shows up anywhere else, obviously.

These aren't fringe connections.

They're documented in the dermatological literature.

And if you're doing everything right topically… but your skin isn't responding…

The answer may be in your labs.

A comprehensive approach to skin health doesn't stop at the surface.

It looks at the whole body. Because your skin is just the visible output of your overall health.

For an integrative approach to skin wellness…

May your skin glow as brightly as your smile.

~ Dr. Lazuk

CEO & Co-Founder

Dr. Lazuk Cosmetics® | Lazuk Esthetics®

Alpharetta, GA | Johns Creek, GA | Milton, GA | Suwanee, GA

Entertainment-only medical disclaimer

This content is for educational and entertainment purposes only and is not intended as medical advice. Individual skin needs vary and should be evaluated by a licensed professional.

https://www.youtube.com/watch?v=COmsn0RxDtY

Explore the AI Skin Analysis