The aesthetics industry is evolving quickly — and over the past couple of years, injectable skin rejuvenation treatments have seen a huge rise in popularity. Clients are increasingly looking for treatments that improve the quality of their skin rather than simply changing facial shape or adding volume.
That’s where regenerative skin treatments come in, and two terms that frequently appear in consultations (and across social media) are PDRN and polynucleotides.
They’re often spoken about as if they’re the same thing — but they’re not always identical, and the language used can be confusing (even for professionals).
So, what are the differences between PDRN and polynucleotides? Are they interchangeable? And how do you know which one is more suitable for you?
What Are Polynucleotides?
Polynucleotides are long chains of nucleotides
Nucleotides are the building blocks of DNA and RNA. A polynucleotide is essentially a chain of these nucleotides linked together.
In aesthetic medicine and skin rejuvenation, polynucleotides are used in injectable products designed to support:
- Skin regeneration
- Collagen stimulation
- Hydration and elasticity
- Tissue repair
- Improved tone and texture
Polynucleotides are classed as a regenerative treatment because their purpose isn’t to “fill” the skin like dermal fillers. Instead, they encourage the skin to repair and improve itself.
Key benefits often associated with polynucleotides:
- Improved skin elasticity
- Stronger dermal structure
- Enhanced hydration levels
- Better texture (especially crepey skin)
- Brighter skin tone
- Faster tissue recovery
This is why polynucleotides are widely used for:
- Under-eye rejuvenation
- Face rejuvenation
- Neck and décolletage
- Hands
- Acne-scar prone skin
- Compromised, dull & ageing skin
What Is PDRN?
PDRN stands for Polydeoxyribonucleotide
PDRN is a specific type of DNA-derived compound made from DNA fragments.
PDRN is often derived from salmon or trout DNA (this is very common within regenerative injectables), processed to be purified and biocompatible for aesthetic use.
PDRN has been studied in medical settings for its potential role in:
- Tissue repair
- Wound healing
- Inflammation control
- Promoting healthy regeneration of damaged tissue
In aesthetics, PDRN is used as a regenerative injectable or needling ingredient to:
- Revitalise skin quality
- Improve elasticity
- Support collagen production
- Calm inflammation
- Boost overall skin repair function
So… What Are the Differences Between PDRN and Polynucleotides?
1) Polynucleotides = Longer DNA Chains (Often Higher Molecular Weight)
Many aesthetic “polynucleotide” products use longer fragments of DNA chains designed to act like bio-stimulators.
These longer chains may:
- Support fibroblast activity (collagen-producing cells)
- Improve skin density and elasticity
- Enhance dermal quality gradually over a course
They are often marketed as:
- “skin regeneration” injectables
- “skin boosters for structure”
- “repair-based injectables”
2) PDRN = DNA Fragments More Commonly Linked With Repair + Healing
PDRN is typically associated with:
- Wound repair support
- Anti-inflammatory response
- Accelerated recovery
- Skin rejuvenation through tissue healing
In clinic positioning, PDRN is often described as:
- Ideal for sensitive/compromised skin
- Great post-inflammatory skin
- Excellent for dullness and damaged barrier
- Supportive after aggressive treatments
How Do PDRN and Polynucleotides Work in the Skin?
They Are NOT Fillers
First, an important clarification:
Neither PDRN nor polynucleotides are designed to create volume like dermal fillers.
They focus on:
– Tissue quality
– Skin strength
– Hydration
– Elasticity
– Glow
So the results are natural and progressive.
Fibroblast Stimulation (Collagen + Elastin)
A core benefit of both treatments is stimulation of fibroblasts.
Fibroblasts are responsible for producing:
- Collagen
- Elastin
- Structural proteins in the dermis
As fibroblast activity increases, skin becomes:
- Firmer
- Smoother
- Denser
- More elastic
Improved Hydration + Skin Barrier Function
Many clients notice:
- Skin looks more “plump”
- Fine lines appear softer
- Dryness improves
This isn’t because the product fills lines — it’s because the skin is functioning better.
Anti-inflammatory and Repair Benefits (Especially with PDRN)
A key reason PDRN is popular is its association with:
- Inflammation reduction
- Healing
- Tissue repair
This can make it especially useful in clients who suffer from:
- Redness
- Reactive skin
- Acne inflammation history
- Barrier impairment
What should clients expect when using both:
- Improved skin glow
- Better texture
- Smoother fine lines
- Improved skin bounce
- Healthier-looking skin
What they should NOT expect:
- Instant filler-like lift
- Major facial reshaping
- Immediate dramatic changes after one session
Both are best in a course of at least 3 – 6 treatments to see greater results.
Are There Side Effects?
Side effects are generally mild when performed correctly by trained professionals.
Most common include:
- Small bumps at injection sites temporarily
- Swelling
- Mild bruising
- Redness
Down-time is usually minimal.
Client preparation and aftercare help reduce risks and improve outcome.
Who Is NOT Suitable?
As with any needling or injectable treatment, suitability depends on medical history and practitioner assessment & skin analysis.
Treatments may not be suitable for:
- Active skin infection
- Certain autoimmune conditions (depends)
- Pregnancy / breastfeeding (policy varies)
- Clients prone to severe keloid scarring
- Unrealistic expectations
Always follow appropriate consultation and consent procedures.
At elixSKIN Clinic, we have seen great results using Polynucleotides and PDRN to treat a range of skin concerns. Our Specialist Scar Treatment uses specialist PDRN skin tissue regeneration and polynucleotides to regenerate cells to stimulate rejuvenation. Our Eye Treatments also use Polynucleotides to address dark circles, dryness, dehydration, crepey skin, fine lines, and wrinkles under the eyes.
Have a look at our treatments and additional Blogs, to Book your next treatment visit us here.
Visit our website or get in touch to find out more about what treatments we offer and how we can support you.