Nucleofill: The Complete UK Practitioner Guide

Evidence reviewed: September 2026

Nucleofill is a professional polynucleotide (PN) injectable range used within regenerative and skin-quality aesthetic practice. Nucleofill is not one product: the range includes formulations intended for different treatment objectives and anatomical areas.

The current range available from Longeva Pharma includes Nucleofill Soft Plus Eyes 0.75% 2ml Syringe, Nucleofill Medium 2% 1.5ml Syringe, Nucleofill Strong 2.5% 1.5ml Syringe, Nucleofill Strong Plus 2.5% 2ml Syringe and Nucleofill Medium Plus Hair 2% 2ml Syringe.

For practitioners, the important question is not simply “What is Nucleofill?” but which formulation is appropriate for the patient's concern, anatomy, tissue characteristics and treatment objective?

Which Nucleofill Should I Choose?

Do not choose Nucleofill solely by PN percentage. A higher concentration does not automatically make one formulation clinically preferable. Product selection should reflect indication, anatomy, tissue, treatment objective, formulation, current manufacturer information and individual assessment.

What Is Nucleofill?

Nucleofill is a range of injectable polynucleotide gels used principally for regenerative and skin-quality aesthetic objectives rather than conventional filler-style volumisation.

Polynucleotides are chains composed of nucleotide units. Purified PN preparations have attracted increasing interest in aesthetic medicine because of research into biological processes associated with tissue repair, hydration, fibroblast activity and extracellular-matrix function. Biological plausibility, however, does not mean every claimed clinical effect has been conclusively established.

How Do Polynucleotides Work?

Fibroblast and tissue activity

Fibroblasts play a major role in maintaining dermal tissue and producing extracellular-matrix components. PN research has investigated biological activity relevant to fibroblasts and tissue repair.

Hydration

Polynucleotides have hydrophilic properties. Their interaction with water contributes to the rationale for improvements in hydration reported in aesthetic PN studies.

Extracellular-matrix remodelling

Ageing involves changes in collagen, elastin, fibroblast function and the extracellular matrix. PN treatment is therefore conceptually different from simply placing material into tissue for immediate projection.

Regenerative signalling

PN/PDRN research has investigated mechanisms associated with tissue repair, inflammation and cellular signalling. These mechanisms should not be translated into guaranteed patient outcomes.

What Does the Evidence Actually Say?

The evidence for aesthetic polynucleotides is promising but still developing. Published reviews report encouraging findings for wrinkles, texture, elasticity and other skin-quality outcomes, while also highlighting small samples, heterogeneous protocols, variable outcome measures and the need for stronger research.

Practitioners should distinguish evidence for PN/PDRN as a biological category from evidence for a particular commercial formulation and from evidence for a specific indication. A positive study involving one PN product should not automatically be presented as proof of every claim associated with every Nucleofill formulation.

Nucleofill Soft Plus Eyes 0.75% 2ml Syringe

Nucleofill Soft Plus Eyes is the periocular-focused member of the current range. It is supplied by Longeva Pharma as a 0.75% formulation in a 2ml syringe.

An “under-eye concern” is not a diagnosis. A tired or dark appearance can result from thin skin, pigmentation, visible vasculature, fine lines, crepey tissue, tear-trough hollowing, structural shadowing, oedema, fat-pad prominence or several factors simultaneously. First identify what is producing the appearance.

View Nucleofill Soft Plus Eyes

Nucleofill Medium 2% 1.5ml Syringe

Nucleofill Medium occupies the general facial PN position within the range. Potential treatment objectives can include hydration, texture, fine lines, elasticity, firmness and overall skin quality. Medium should not simply be regarded as a weaker version of Strong.

View Nucleofill Medium

Nucleofill Strong 2.5% 1.5ml Syringe

Nucleofill Strong is a higher-concentration facial PN option within the range. Treatment planning may centre on elasticity, firmness, texture, tissue quality and visible age-associated skin change.

Is Nucleofill Strong better than Medium?

Not universally. The correct formulation is the one that corresponds with the treatment objective and patient assessment. “Strong” should not be interpreted as “best”.

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Nucleofill Strong Plus 2.5% 2ml Syringe

Nucleofill Strong Plus is supplied by Longeva Pharma as a 2.5% formulation in a 2ml syringe and should not be confused with Nucleofill Strong. Although both are listed at 2.5%, their presentations differ. Practitioners should consider formulation, syringe volume, manufacturer positioning, intended application, tissue, anatomy and treatment objective.

View Nucleofill Strong Plus

Nucleofill Medium Plus Hair 2% 2ml Syringe

Nucleofill Medium Plus Hair is the hair/scalp-focused member of the current range. Hair loss is a symptom, not a diagnosis. Hair thinning can be associated with androgenetic alopecia, telogen effluvium, nutritional deficiency, thyroid disease, hormonal factors, medicines, inflammatory scalp disorders, autoimmune conditions and systemic disease.

A regenerative scalp treatment should not replace appropriate investigation where an underlying condition may be contributing to hair loss.

View Nucleofill Medium Plus Hair

Nucleofill for Under Eyes: Patient Selection Matters

Periocular treatment is an important application within the PN category and an area where anatomy-driven diagnosis matters enormously.

Skin quality

Thin, crepey periocular tissue represents a different treatment objective from structural hollowing.

Tear-trough hollowing

Where anatomy or volume deficiency creates a significant hollow, improving tissue quality does not necessarily reproduce the effect of structural correction.

Pigmentation and vascular visibility

Melanin-related pigmentation and visible underlying vessels are different causes of dark appearance and require different assessment.

Oedema and eye bags

Patients with swelling, malar oedema or fat-pad prominence require appropriate assessment before injectable treatment.

Nucleofill vs Profhilo

Nucleofill and Profhilo can both enter conversations about skin quality, but they use different technologies. Nucleofill uses polynucleotides, while Profhilo is based on hyaluronic acid. Neither should be selected simply because one is perceived as “better”; treatment choice should follow anatomy, tissue characteristics, indication, history and desired outcome.

Nucleofill vs Dermal Filler

Dermal filler is commonly used when the objective involves volume replacement, projection, contour, structural support or correction of selected depressions. Nucleofill is principally positioned around skin/tissue quality, hydration, biostimulation and regenerative aesthetic objectives. Skin quality and structural volume are not the same treatment objective.

Nucleofill vs Other Polynucleotides

Practitioners may encounter Nucleofill alongside Plinest, Vitaran, LUMI-PN, Illuma, Newest and other PN/PDRN formulations. Compare composition, concentration, syringe volume, intended area, manufacturer information, clinical evidence and supply-chain traceability rather than price per syringe alone.

What Results Can Patients Expect?

Nucleofill should not be described as an instant volumising treatment. Depending on formulation, indication and individual response, treatment objectives may include aspects of hydration, texture, elasticity, firmness, fine lines and overall tissue quality. Individual response varies and results cannot be guaranteed.

How Quickly Does Nucleofill Work?

Nucleofill is generally approached as a progressive skin-quality treatment rather than an immediate structural correction. Response varies with product, anatomical area, baseline tissue quality, age, treatment course, lifestyle, individual biology and the outcome being measured.

How Long Does Nucleofill Last?

There is no single guaranteed duration applicable to every patient or formulation. Longevity can vary according to formulation, treatment area, baseline tissue, patient biology, treatment course, lifestyle, environmental exposure and maintenance.

How Many Nucleofill Treatments Are Needed?

There should not be one generic protocol applied indiscriminately across the range. Follow current product-specific manufacturer information, appropriate training and individual clinical assessment.

Nucleofill Before and After: Documenting Results

Before-and-after photography should keep camera, lens, distance, lighting, background, head position, patient position, expression and timing consistent. This is particularly important around the eyes, where lighting can dramatically alter the apparent severity of hollows, shadows, lines and dark circles.

Who Is Suitable for Nucleofill?

Good selection starts by establishing the patient's actual concern, its likely cause, whether tissue quality is genuinely part of the problem, whether PN treatment is appropriate, which formulation corresponds to the objective and whether expectations are realistic.

Contraindications and Precautions

Practitioners should check current manufacturer documentation for the specific product. Assessment may need to consider active infection or inflammation, relevant hypersensitivity, pregnancy or breastfeeding where applicable, bleeding disorders, medicines affecting bleeding, impaired healing, relevant immune or systemic disease, previous injectable reactions, active herpes infection and unexplained lesions. This is not an exhaustive list.

Nucleofill Side Effects and Safety

Short-term injection-site effects can include erythema, swelling, tenderness, bruising, discomfort, itching, temporary local elevations and inflammation. Practitioner competence should include patient selection, anatomy, aseptic technique, product-specific training, recognising unexpected reactions, documentation, follow-up and appropriate escalation.

Consultation and Consent

Document the presenting concern, relevant medical history, medicines, allergies, previous aesthetic treatments and complications, tissue/anatomical assessment, indication, alternatives, selected product, rationale, expected outcome, limitations, risks, aftercare and follow-up.

Why Product Provenance Matters

Injectable products should come through professional supply routes supporting identification and traceability. Consider supplier, manufacturer, packaging integrity, batch/lot information, expiry, storage, product documentation and traceability.

Buy Nucleofill from Longeva Pharma

Longeva Pharma supplies the current Nucleofill range for professional aesthetic practice.

Shop the Nucleofill and Polynucleotide range

Frequently Asked Questions

What is Nucleofill?

Nucleofill is a professional range of polynucleotide injectable products used primarily for regenerative and skin-quality aesthetic objectives.

Is Nucleofill a skin booster?

It is sometimes grouped commercially with skin boosters, but Nucleofill uses polynucleotide technology. Practitioners should explain its composition and treatment objective rather than relying solely on the broad “skin booster” label.

Which Nucleofill is for under eyes?

Nucleofill Soft Plus Eyes 0.75% 2ml Syringe is the periocular-focused member of the current range.

What is the difference between Nucleofill Medium and Strong?

Medium is supplied as 2% in 1.5ml, while Strong is 2.5% in 1.5ml. Product selection should follow the clinical objective rather than automatically choosing the higher concentration.

What is the difference between Strong and Strong Plus?

Both are listed at 2.5%, but Strong is supplied in 1.5ml and Strong Plus in 2ml. They should be treated as distinct products and selected according to current product information and clinical assessment.

Which Nucleofill is for hair?

Nucleofill Medium Plus Hair 2% 2ml Syringe is the hair/scalp-focused product.

Is Nucleofill the same as Profhilo?

No. Nucleofill uses polynucleotide technology; Profhilo uses hyaluronic-acid technology.

Is Nucleofill a dermal filler?

It is not principally positioned as a conventional volumising dermal filler.

Can Nucleofill treat dark circles?

Potential suitability depends on the cause. Pigmentation, vascular visibility, structural hollowing, oedema and poor skin quality are different problems requiring different assessment.

References

1. Lee YJ, Kim HT, Lee YJ, et al. Comparison of the effects of polynucleotide and hyaluronic acid fillers on periocular rejuvenation: a randomized, double-blind, split-face trial. Journal of Dermatological Treatment. 2022;33(1):254–260. doi:10.1080/09546634.2020.1748857.
2. Araco A, Araco F, Raichi M. Clinical efficacy and safety of polynucleotides highly purified technology (PN-HPT®) and cross-linked hyaluronic acid for moderate to severe nasolabial folds: a prospective, randomized, exploratory study. Journal of Cosmetic Dermatology. 2023;22(1):146–155. doi:10.1111/jocd.15064.
3. Current manufacturer product information. Practitioners should consult documentation applicable to the individual Nucleofill formulation before treatment.

Professional information disclaimer: This article is intended for professional education and general information. It does not replace current manufacturer instructions, appropriate professional training, individual clinical judgement, applicable regulatory requirements or individual patient assessment.