
Rejuran polynucleotides are purified DNA fragments used in injectable skin-quality treatments. They are discussed in aesthetic medicine for their role in supporting skin texture, skin repair and overall skin quality.
Unlike dermal fillers, Rejuran is not designed to add obvious volume or change facial contours. Its focus is more on supporting the skin itself, including fine lines, texture, elasticity and delicate-looking skin.
Rejuran is the treatment or product line. Polynucleotides are the active ingredients used in the treatment. This is why the terms are often used together, even though they do not mean exactly the same thing.
Read more about the general Rejuran treatment if you want a broader introduction before looking at polynucleotides in detail.

Polynucleotides are chains of nucleotides, the building blocks of DNA. In aesthetic treatments, they are used because of their possible role in supporting skin repair, skin renewal and the extracellular matrix.
In purified form, polynucleotides are used in regenerative skin-quality treatments. They are often discussed in relation to:
skin repair;
skin texture;
collagen support;
elasticity;
skin-barrier support;
fine lines;
overall skin quality.
Polynucleotides are not designed to create filler-like volume. The aim is to support skin condition and skin quality rather than to reshape the face.
Term | Meaning |
Rejuran | Product line or treatment based on polynucleotides |
Polynucleotides | Active purified DNA fragments |
PN | Short for polynucleotides |
PDRN | A related DNA-derived ingredient |
Fibroblasts | Cells involved in collagen and elastin production |
Rejuran is the treatment or product name. Polynucleotides are the active ingredients used within the treatment.
A simple way to understand it is that Rejuran is the product line, while polynucleotides are the ingredient category.
Term | Meaning |
Rejuran | Treatment or product line |
Polynucleotides | Active ingredient |
PN | Short for polynucleotides |
PDRN | Related DNA-derived technology |
The confusion happens because some clinics talk about a Rejuran treatment, while others describe a polynucleotide treatment. In practice, both terms often refer to similar regenerative injectable skin-quality treatments, but the exact product and protocol can vary by clinic.
PN and PDRN are both DNA-derived ingredients, but they differ in structure, fragment length and how they are described in aesthetic medicine.
Feature | PN | PDRN |
Full name | Polynucleotides | Polydeoxyribonucleotide |
Structure | Longer DNA chains | Shorter DNA fragments |
Common focus | Skin quality and regeneration support | Repair-focused applications |
Skin focus | Texture, elasticity and resilience | Support of repair processes |
Link with Rejuran | Often described as a core technology | Often compared with PN |
For most users, the key point is that Rejuran is known for using polynucleotides as a regenerative skin-quality technology. A practitioner can explain which product is being used and why it suits your skin.
Rejuran polynucleotides are mainly considered when skin quality is the main concern.
They may be discussed for:
fine lines;
thin or delicate-looking skin;
reduced elasticity;
dull skin;
uneven texture;
superficial acne scarring;
skin ageing;
under-eye skin quality.
For more specific information, read about Rejuran for fine lines, Rejuran for acne scars and Rejuran under eyes.
Within the Rejuran product line, different variants may be used for different skin concerns.
Product | Often discussed for |
Rejuran Healer | General skin quality |
Rejuran I | Delicate under-eye skin |
Rejuran S | Scars and texture concerns |
Rejuran HB | Hydration and skin quality |
The choice of product depends on the treatment area, skin concern, medical suitability and practitioner assessment.




Before-and-after photos may help show the type of skin-quality changes people look for with Rejuran, such as smoother texture, softer-looking fine lines or improved overall skin appearance.
Photos should be viewed carefully. Results vary by person and depend on skin condition, treatment area, number of sessions, product choice, practitioner technique and aftercare.
Feature | Rejuran | Profhilo |
Active ingredient | Polynucleotides | Hyaluronic acid |
Main goal | Skin repair and texture support | Hydration and elasticity |
Main focus | Skin quality and structure | Hydration and bioremodelling |
Type of treatment | Regenerative injectable | Bioremodelling injectable |
Read more on Rejuran vs Profhilo.
Feature | Polynucleotides | Fillers |
Main goal | Skin quality | Volume and contour |
Action | Supports skin-quality processes | Adds volume or structure |
Result style | Gradual | Often more immediate |
Common use | Texture, fine lines and skin quality | Volume loss, folds and facial shaping |
Read more on Rejuran vs fillers.
Many skin boosters use hyaluronic acid and focus mainly on hydration. Polynucleotides are more focused on regenerative skin-quality support and texture.
Read more on Rejuran vs skin boosters.
Rejuran polynucleotides are used in aesthetic clinics, but they are not suitable for everyone. A consultation is needed to assess your skin, medical history, allergies, current medication and expectations.
Temporary side effects may include:
redness;
swelling;
small bumps;
bruising;
tenderness;
visible injection marks.
Treatment may be postponed or avoided during pregnancy or breastfeeding, with active skin infections, certain allergies or some medical conditions. Always follow the advice of your practitioner.
Read more about Rejuran side effects for a fuller explanation of possible risks.
If you want to know whether Rejuran polynucleotides suit your skin goals, compare clinics and practitioners carefully. Look beyond price and check experience, consultation quality, treatment explanation and aftercare.
Useful pages to read next include:
This gives you a clearer view of the treatment, possible results and available UK clinics.

Polynucleotides are chains of nucleotides, the building blocks of DNA. In aesthetic treatments, they are used to support skin quality, texture and regenerative skin processes.
Rejuran uses polynucleotides because they are associated with skin repair support, collagen-related processes and improvement in overall skin quality.
PN stands for polynucleotides. These are the active ingredients used in Rejuran treatments.
PN usually refers to longer DNA chains, while PDRN refers to shorter DNA fragments. Both are discussed in regenerative aesthetic treatments.
No. Fillers are mainly used for volume and contour. Polynucleotides are mainly used for skin quality, texture and gradual skin support.
No. Rejuran uses polynucleotides, while Profhilo is based on hyaluronic acid. Their treatment goals can overlap, but the technologies are different.
Rejuran is sometimes described as a skin-quality injectable, but it is different from classic hyaluronic acid skin boosters. It is more focused on skin repair and texture support.
Polynucleotides are often linked with fibroblast support and processes involved in collagen formation. Results vary by person and treatment plan.
Many polynucleotide products are based on purified DNA fragments from salmonid sources. The final product contains purified ingredients prepared for medical aesthetic use.
Not necessarily. Rejuran I is mainly used for skin quality in delicate areas such as around the eyes. Fillers are more often used for volume loss or contour.
They may be suitable for people who want to improve skin quality, texture, elasticity or fine lines. A practitioner should assess whether the treatment is appropriate.
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