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Polynucleotides vs Skin Boosters: What's the Difference?
- May 11
- 6 min read
If you've been looking into skin treatments lately, you've probably come across both polynucleotides and skin boosters. They're often mentioned in the same breath, and it's easy to see why - both are injectable treatments, both improve skin quality from within, and both are a long way from the traditional "filler" approach to aesthetics.
But they're not the same thing, and choosing between them (or understanding when you might benefit from both) really does depend on what your skin actually needs.
As a Registered Nurse and Independent Prescriber with over 20 years of clinical experience, I get asked this question a lot. Here's a straightforward explanation.
What Is the Difference Between Polynucleotides and Skin Boosters?
This is the question most people are asking so let me answer it directly before going into more detail.
Skin boosters work primarily through deep hydration. They use hyaluronic acid to deliver intense moisture into the deeper layers of the skin, stimulating collagen and elastin in the process. The results are visible relatively quickly and are particularly effective for skin that feels dull, dehydrated or has lost its firmness and glow.
Polynucleotides work at a cellular level. Rather than adding hydration from the outside, they stimulate your skin's own repair and regeneration processes from within. The results build more gradually but tend to be more significant and longer lasting, particularly for more pronounced skin quality concerns.
The simplest way to remember it: skin boosters hydrate and plump, polynucleotides repair and regenerate.
What is a skin booster?
A skin booster is an injectable treatment that uses hyaluronic acid, the same substance your body naturally produces to keep skin hydrated and plump. Unlike a traditional dermal filler, which is designed to add volume in a specific area, a skin booster is a much lighter, more fluid formulation that disperses through the skin to deeply hydrate it from within.
The most well-evidenced product in this category is Profhilo, which is one I use at Aesthetics by Emma in Waterlooville. It is administered at five specific injection points on each side of the face, from where it spreads through the tissue and stimulates collagen and elastin as it does so.
The results are a genuine improvement in skin quality, skin that feels softer and more supple, looks more radiant and has better firmness and elasticity over time.
It is particularly effective for skin that has lost its glow or its bounce, and for those starting to notice fine crepey lines or reduced elasticity in the cheeks, jawline or neck.
The standard Profhilo protocol is two sessions, four weeks apart.
Skin boosters are well suited to:
Skin that feels dehydrated or dull
Loss of firmness or elasticity
Fine crepey lines
Anyone wanting a visible improvement in skin quality within a relatively short timeframe
What are polynucleotides?
Polynucleotides (often referred to as 'Salmon Sperm') are a newer technology, and the mechanism is quite different. Rather than hydrating the skin using hyaluronic acid, polynucleotides work at a cellular level. They are derived from highly purified salmon DNA - which has a very similar structure to human DNA - and when injected into the skin they stimulate tissue regeneration, encouraging your skin cells to repair, renew and function better over time.
Think of it less as adding something to the skin and more as prompting the skin to do its own job better.
The products I use at Aesthetics by Emma are Vitaran, Plinest and Lumi-Pro PN. Vitaran and Plinest are used for deeper regeneration work - improving elasticity, hydration and overall skin quality with results that continue building over several months. Lumi-Pro is used for brightening and surface skin quality improvement, particularly useful for dullness, uneven skin tone and early fine lines.
Polynucleotides are usually delivered over a course of sessions spaced several weeks apart, and the results are gradual and progressive rather than immediate. That is not a limitation, it is what makes them so effective for long-term skin health.
Polynucleotides are well suited to:
Thinning or more fragile skin
Sun damage or uneven skin tone
Pronounced loss of elasticity
Anyone wanting long-term skin health improvement rather than a quick top-up
Skin that has not responded as well to hydration-only treatments
Is a Polynucleotide a Skin Booster?
This is a common source of confusion. The short answer is no, they are different treatments with different mechanisms.
A skin booster like Profhilo uses hyaluronic acid to hydrate. A polynucleotide treatment uses DNA-derived fragments to stimulate cellular repair. They can both be described as skin quality treatments, and both improve how your skin looks and feels - but they work in fundamentally different ways and are suited to different concerns.
Some brands market polynucleotide products using the term "skin booster" loosely, which adds to the confusion. If you are unsure what a specific product is, always ask your practitioner to explain the mechanism before you book.
Skin Boosters vs Polynucleotides: Which One Is Right for You?
This is where a proper consultation really matters, because the answer depends on your skin, your age, your concerns and your goals.
As a rough guide:
If your skin feels dehydrated, dull or has lost its firmness and you are looking for a visible improvement in a relatively short timeframe, a skin booster like Profhilo is often a brilliant starting point. It is well tolerated, requires minimal downtime and produces results that speak for themselves.
If you have more significant skin quality concerns - thinning skin, sun damage, pronounced loss of elasticity or you want a treatment that supports your skin health over the longer term - polynucleotides are worth a serious conversation.
For many clients, the answer is actually both. Skin boosters and polynucleotides work very well together as part of a combined treatment plan, addressing different layers and aspects of skin health in a complementary way.
What about microneedling?
It's worth mentioning that microneedling is a third option in the skin rejuvenation category, and one that's often combined with both of the above. Rather than being injectable, it uses a device with very fine needles to create controlled channels in the skin's surface, triggering the skin's natural collagen response. It's particularly effective for texture, tone, and pore size, and works well alongside injectable skin treatments.
If you're curious about how these treatments might work together for your skin, that's exactly what a consultation is designed to explore.
A note on choosing your practitioner
With both skin boosters and polynucleotides, the quality of the assessment matters as much as the treatment itself. These are injectable treatments that should always be carried out by a qualified, insured medical professional with a thorough understanding of skin anatomy and the products being used.
At Aesthetics by Emma, every skin treatment begins with a proper clinical assessment. I'll look at your skin quality, discuss your concerns honestly, and recommend only what I genuinely believe will make a difference for you. There's no pressure, no packages, and no one-size-fits-all approach.
Frequently Asked Questions
How long do skin boosters last?
Results from Profhilo typically last around six months, after which a maintenance session is recommended.
How long do polynucleotides last?
Results from polynucleotide treatments build over several months and can last a year or more depending on the individual and the number of sessions completed.
Can you have skin boosters and polynucleotides at the same time?
Yes — they work well together and many clients choose to combine them as part of a treatment plan. We would discuss the best timing and sequencing at your consultation.
Do skin boosters or polynucleotides hurt?
Both treatments involve injections, so there is some discomfort. Most clients describe it as manageable — similar to other injectable treatments. Topical anaesthetic can be applied beforehand if preferred.
How much do skin boosters and polynucleotides cost in Waterlooville?
Pricing for both treatments is available on the prices page. A free consultation is the best starting point to understand which treatment is right for you before committing to any cost.
Ready to find out which treatment is right for your skin?
Book a free consultation at Aesthetics by Emma in Waterlooville and we will work it out together. There is no obligation and no pressure - just an honest conversation about your skin and what would genuinely help.
Emma Fisher is a Registered Nurse and Independent Prescriber (V300) with over 20 years of NHS clinical experience. She is the founder of Aesthetics by Emma, a nurse-led aesthetics practice in Cowplain, Waterlooville, serving patients across Portsmouth, Havant, Petersfield and South Hampshire.
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