Skin Boosters & Polynucleotides: Complete UK Guide (2026)

Skin boosters and polynucleotides represent the fastest-growing category in UK aesthetics. While Botox targets wrinkles and fillers add volume, these treatments address something different entirely: the quality of your skin itself. Hydration, texture, luminosity, firmness, fine lines caused by skin degradation rather than muscle movement — this is their territory.

The category has expanded rapidly since 2023, driven by two trends: patients wanting natural-looking results rather than structural changes, and the arrival of polynucleotide products that offer regenerative benefits beyond what traditional HA skin boosters can achieve.

This guide covers both product categories — what they are, how they differ, and which one might suit you.

The Two Categories Explained

Skin Boosters (Hyaluronic Acid-Based)

Skin boosters are micro-injections of soft, flowable hyaluronic acid placed into the superficial dermis across the face, neck, hands, or decolletage. Unlike dermal fillers (which add volume to specific areas), skin boosters spread evenly through the skin to improve overall hydration and quality.

Major products in the UK market:

• Restylane Skinboosters (Vital/Vital Light): The original skin booster, launched in 2001. Uses stabilised HA that integrates into the dermis. Clinical data going back over 20 years
• Juvederm Volite: Allergan's skin booster, using Vycross technology (the same platform as their filler range). Studies show improved hydration, elasticity, and smoothness lasting up to 9 months after a single session
• Teoxane RHA Skinbooster: Uses Resilient Hyaluronic Acid technology designed to flex with facial movement
• Belotero Revive: A softer formulation designed specifically for periorbital (around the eye) and neck use

Skin boosters work primarily through hydration. The HA draws water into the dermis, improving skin turgor (firmness), smoothing fine lines, and creating a healthier, more luminous complexion. Some collagen stimulation occurs, but hydration is the primary mechanism.

Polynucleotides (PN/PDRN)

Polynucleotides are a newer class of injectable that uses DNA fragments — typically derived from salmon or trout sperm DNA (sounds unusual, works remarkably well). These fragments, known as PDRN (polydeoxyribonucleotide) or PN (polynucleotide), trigger a biological cascade that is fundamentally different from HA:

• They activate the A2A purinergic receptor on fibroblasts, stimulating cell proliferation and tissue repair
• They promote angiogenesis (new blood vessel formation), improving nutrient delivery to the skin
• They have anti-inflammatory properties, reducing chronic low-grade inflammation that accelerates skin ageing
• They stimulate production of collagen, elastin, and glycosaminoglycans from within

Major polynucleotide products in the UK:

• Nucleofill: Available in medium and strong formulations, from the Italian manufacturer Promoitalia. One of the earliest PN products in the UK market
• Ameela: A high-concentration polynucleotide (20mg/ml PDRN), popular for the under-eye area where traditional fillers carry higher risk
• Plinest: Uses highly purified salmon DNA polynucleotides. Available in face and body formulations
• PhilArt: Combines polynucleotides with hyaluronic acid for a dual-mechanism approach
• Vitaran PDRN: Korean-manufactured PDRN product gaining traction in the UK

The evidence base for polynucleotides has grown substantially. A 2024 systematic review in the Journal of Cosmetic Dermatology analysed 23 clinical trials and found consistent improvements in skin elasticity (average 31% improvement), hydration (average 28%), and collagen density (average 22%) after a standard protocol.

What to Expect During Treatment

Skin Booster Protocol

1. Consultation (10-15 minutes) — Your practitioner assesses skin quality, hydration levels, and specific concerns. Skin analysis tools (like Observ or Visia) can objectively measure skin parameters before and after treatment
2. Numbing (15-20 minutes) — Topical anaesthetic cream is applied across the entire treatment area
3. Injection (20-30 minutes) — Multiple micro-injections are administered across the treatment area. Techniques include manual injection using a needle or mesotherapy gun (which automates the depth and volume of each injection), or cannula technique for larger areas. A typical face treatment involves 20-30 injection points
4. Repeat sessions — The standard protocol is 3 sessions spaced 2-4 weeks apart. After the initial course, maintenance sessions every 4-6 months sustain the results

Polynucleotide Protocol

1. Consultation (10-15 minutes) — Assessment of skin quality, discussion of biological mechanism, and suitability screening. Patients with known fish allergies should inform their practitioner, as PN products are derived from fish DNA (though the purification process removes allergenic proteins, caution is warranted)
2. Numbing (15-20 minutes) — Topical anaesthetic cream applied across the treatment area
3. Injection (15-25 minutes) — Polynucleotides are injected using either a needle in micro-bolus or serial puncture technique, or via cannula. The injection points are similar to skin boosters — multiple superficial deposits across the treatment area. Some products (like Ameela for the under-eye area) use fewer injection points with larger volumes
4. Repeat sessions — Most polynucleotide protocols require 2-3 sessions spaced 3-4 weeks apart. The longer interval reflects the regenerative mechanism — the cells need time to respond to the biological signal before the next stimulus

Cost in the UK

Skin Boosters

| Region | Per Session | 3-Session Protocol | |--------|-------------|-------------------| | London | £300-400 | £800-1,100 | | South East | £250-350 | £700-1,000 | | Midlands | £220-320 | £600-900 | | North | £200-300 | £550-850 | | Scotland | £200-300 | £550-850 |

Polynucleotides

| Region | Per Session | 2-3 Session Protocol | |--------|-------------|---------------------| | London | £350-450 | £700-1,200 | | South East | £300-400 | £600-1,100 | | Midlands | £280-380 | £560-1,050 | | North | £250-350 | £500-950 | | Scotland | £250-350 | £500-950 |

Polynucleotide products cost more than HA skin boosters per syringe (approximately £100-150 wholesale versus £60-90 for HA) but may require fewer maintenance sessions due to their longer-lasting regenerative effect.

Annual cost comparison:

• Skin boosters: Initial protocol £550-1,100 + 2 maintenance sessions = £950-1,900/year
• Polynucleotides: Initial protocol £500-1,200 + 1-2 maintenance sessions = £750-1,650/year
• Profhilo: Initial protocol £500-1,000 + 1 maintenance = £750-1,500/year

All three approaches cost roughly the same annually, so the choice should be based on your specific skin concerns and the mechanism that best addresses them — not price.

Results and Recovery

Skin Booster Results

• Day 0: Multiple small bumps (papules) across the treatment area. These flatten within 12-48 hours. Redness is common and resolves within 24 hours
• Days 1-3: Skin may feel "spongy" or slightly swollen. This is the HA hydrating the dermis
• Weeks 1-2: Improved hydration noticeable. Skin feels softer and more supple
• After session 2 (week 4-6): Cumulative improvement in skin texture and hydration
• After session 3 (week 8-12): Full results visible. Skin appears plumper, more luminous, fine lines are reduced, and overall texture is smoother
• Months 4-6: Gradual decline. Maintenance session recommended

Polynucleotide Results

• Day 0: Similar papules to skin boosters. Slightly more redness is typical with polynucleotides
• Days 1-5: Mild swelling and redness resolve. Some patients report a mild itching sensation (a sign of the biological response)
• Weeks 2-4: The regenerative process is underway but not yet visible. Skin may feel subtly firmer
• After session 2-3 (weeks 6-12): Results emerge more gradually than skin boosters but tend to be more substantial — improved firmness, better elasticity, visible improvement in skin texture and tone
• Months 3-6: Peak results as collagen and elastin remodelling matures
• Months 6-9: Gradual decline. Maintenance session recommended

Downtime for both: Minimal. The papules and redness resolve within 24-48 hours. Most patients return to work the same day. Makeup can be applied the following morning. Avoid intense exercise, saunas, and direct sun exposure for 48 hours.

Risks and Side Effects

Both categories have excellent safety profiles:

Skin Boosters

• Common (>10%): Injection site papules (100% — expected and temporary), redness lasting 12-24 hours, mild swelling
• Uncommon (1-10%): Bruising (more likely on the neck and under-eye area), temporary firmness or granularity under the skin, headache
• Rare (<1%): Nodule formation that persists beyond 2 weeks, infection, hypersensitivity reaction
• Very rare (<0.1%): Granuloma, prolonged inflammatory reaction

Polynucleotides

• Common (>10%): Injection site papules, redness for 24-48 hours, mild swelling, slight itching (an immune response to the biological stimulus)
• Uncommon (1-10%): Bruising, temporary tenderness, sensation of warmth or tingling in the treated area
• Rare (<1%): Allergic reaction (patients with severe fish allergies should exercise caution, though the purification process removes most allergenic proteins), nodule formation, infection
• Very rare (<0.1%): Granuloma, prolonged swelling beyond 2 weeks

Neither skin boosters nor polynucleotides carry significant vascular risk because they are placed superficially in the dermis, away from the deeper blood vessels that are relevant to filler complications.

How to Choose a Practitioner

1. Medical qualification: Both treatments involve injectable medical devices and should be performed by or under the supervision of a medically qualified prescriber. GMC doctors, NMC prescribing nurses, and GDC dentists are appropriate
2. Product knowledge: Your practitioner should be able to explain the difference between skin boosters, polynucleotides, and Profhilo — and recommend the most appropriate option for your skin. A practitioner who stocks only one product and recommends it for everyone is not offering personalised care
3. Proper skin assessment: The best practitioners perform a skin analysis before treatment (even a simple assessment of hydration, elasticity, and texture) and compare results objectively at follow-up. This data-driven approach shows whether the treatment is working for you specifically
4. Correct technique: Multi-point micro-injection requires patience and precision. Ask whether your practitioner uses manual technique or a device (mesotherapy gun, U225). Both are acceptable, but the practitioner should be experienced with their chosen method
5. Honest about expectations: Skin boosters and polynucleotides improve skin quality — they do not eliminate wrinkles, add volume, or produce dramatic before-and-after transformations. A practitioner who promises transformative results from skin boosters alone is overpromising. See our aftercare protocols guide for optimising results between sessions

Choosing Between Skin Boosters, Polynucleotides, and Profhilo

This is the most common question patients have. Here is a straightforward comparison:

| Factor | Skin Boosters | Polynucleotides | Profhilo | |--------|--------------|-----------------|----------| | Primary mechanism | Hydration | Cellular regeneration | Bio-remodelling (collagen + elastin) | | Best for | Dehydrated, dull skin | Ageing skin needing repair, under-eyes | Mild laxity, overall skin firmness | | Sessions needed | 3 initial + maintenance | 2-3 initial + maintenance | 2 initial + maintenance | | Results appear | 2-4 weeks | 4-8 weeks | 4-8 weeks | | Duration | 4-6 months | 6-9 months | 6-12 months | | Under-eye safe? | Some products (Belotero Revive) | Yes (Ameela specifically) | Not recommended under eyes | | Body areas | Face, neck, hands, decolletage | Face, neck, under-eyes, scalp | Face, neck, hands, body |

If your skin is primarily dehydrated and dull, skin boosters provide the most immediate improvement. If you want longer-lasting regenerative benefits and improved elasticity, polynucleotides are the stronger choice. If mild skin laxity (sagging) is your main concern, Profhilo is the better option.

Many patients combine two categories — for example, Profhilo for overall remodelling plus polynucleotides for the under-eye area, or skin boosters for immediate hydration followed by polynucleotides for long-term maintenance.

The Bottom Line

Skin boosters and polynucleotides represent a shift in aesthetics from changing how you look to improving how your skin actually functions. They will not give you the dramatic transformation of filler or the wrinkle elimination of Botox — and anyone who promises otherwise is overselling the treatment.

What they will give you is healthier, better-hydrated, firmer skin with improved texture and a natural glow. The kind of improvement that makes people ask if you have been on holiday or changed your skincare routine rather than guessing you have had a treatment.

For first-timers: start with a consultation and be open to your practitioner's recommendation. The choice between skin boosters, polynucleotides, and Profhilo depends on your specific skin concerns, and a good practitioner will guide you to the right option rather than defaulting to whatever they have in stock.

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This guide was written by Dr. Shane McKeown, a former NHS doctor and founder of Aestheticc, a clinic management platform for aesthetic practitioners. Last reviewed March 2026.