They are two of the most talked-about treatments in aesthetic medicine, and two of the most frequently confused. If you have been researching skin boosters, injectable hydration treatments, or ways to improve the quality of your skin without fillers, you will almost certainly have encountered both. But when it comes to polynucleotides vs Profhilo, most patients find themselves stuck on the same question: what is the difference, and which one do I need?
It is a fair question, and the confusion is understandable. Both are injectable treatments. Both aim to improve skin quality rather than add volume. Both are often described as “skin boosters.” But beneath the surface, polynucleotides and Profhilo work in fundamentally different ways, target different aspects of skin health, and are suited to different patients and concerns.
At The Bronte Clinic, we offer both treatments and recommend them regularly, sometimes individually, sometimes together. In this article, our team explains how each one works, what it is best suited to, and how to determine which approach is right for your skin.
What Are Polynucleotides?
Polynucleotides are injectable biostimulants derived from purified DNA fragments, typically sourced from salmon or trout. Once injected into the skin, they stimulate fibroblast activity, prompting your cells to produce more collagen and elastin, improve cellular turnover, and strengthen the skin’s internal repair mechanisms.
The key word here is regeneration. Polynucleotides work by improving how your skin cells function at a biological level. They enhance the skin’s ability to heal, renew, and maintain itself, addressing the root causes of skin ageing rather than simply treating its visible effects.
A typical course involves two to three sessions spaced two to four weeks apart, with results developing progressively as new collagen forms and skin quality improves over the following weeks and months.
What Is Profhilo?
Profhilo® is an injectable bio-remodelling treatment made from stabilised hyaluronic acid – the same molecule your skin naturally produces to retain moisture. However, Profhilo® is not a filler. Rather than adding volume to a specific area, it disperses beneath the skin to deliver deep, sustained hydration across a broad treatment zone. The key word here is hydration. Profhilo® works by drawing and retaining water within the skin, restoring the moisture architecture that keeps tissue plump, smooth, and luminous. As it does so, it also stimulates the production of collagen and elastin – a bio-remodelling effect that improves firmness and elasticity alongside hydration.
A standard Profhilo® course involves two sessions spaced four weeks apart. Five injection points are placed on each side of the face, and the product spreads naturally to remodel the surrounding tissue. Results are typically visible within a few weeks of the second session.
Polynucleotides vs Profhilo: The Key Differences
Understanding where polynucleotides vs Profhilo diverge is essential for choosing the right treatment, or understanding why your practitioner may recommend one over the other.
What They Are Made From
This is the first fundamental distinction in the polynucleotides vs Profhilo debate. Polynucleotides are derived from purified DNA fragments. Profhilo® is made from stabilised hyaluronic acid. These are fundamentally different substances with different biological actions, which is why grouping them both under the umbrella of “skin boosters” can be misleading.
How They Work
This is the most important distinction in the polynucleotides vs Profhilo comparison. Polynucleotides work through biostimulation – they activate your fibroblasts to produce new collagen and elastin, improve cellular turnover, and enhance the skin’s regenerative capacity. The benefit is biological: your skin becomes functionally healthier over time.
Profhilo® works primarily through bio-remodelling – it floods the tissue with hyaluronic acid, restoring hydration at a deep level and triggering collagen and elastin production as a secondary effect. The benefit is structural and textural: your skin becomes more hydrated, firmer, and visibly smoother.
In simple terms, polynucleotides improve how your skin cells behave. Profhilo® improves the environment those cells exist in. This distinction is at the heart of the polynucleotides vs Profhilo decision.
What They Are Best Suited To
When weighing polynucleotides vs Profhilo, the best choice depends on what your skin needs most.
Polynucleotides are particularly effective for patients whose primary concern is skin quality at a cellular level – dullness that skincare alone cannot resolve, thin or fragile skin that has lost its resilience, fine crepey texture, dark circles and under-eye concerns, or skin that simply does not bounce back the way it used to. They are especially well-suited to delicate areas such as the under-eyes, neck, and décolletage where the skin is thinnest and most vulnerable.
Profhilo® is the stronger choice when the primary concern is dehydration and loss of firmness – skin that looks tired, flat, or lacklustre, has lost its plumpness, or feels dry despite a good skincare routine. It excels at delivering an overall glow and bounce to the face, and is also highly effective on the neck, décolletage, hands, and even the upper arms and knees.
Treatment Course and Results Timeline
The polynucleotides vs Profhilo comparison also differs in treatment structure. Polynucleotides typically require two to three sessions spaced two to four weeks apart, with results building gradually as collagen regeneration progresses over weeks and months. Profhilo® requires two sessions four weeks apart, with visible improvement often noticeable within a few weeks of completing the course.
Both treatments require maintenance sessions to sustain results, typically every six to nine months for polynucleotides and every six months for Profhilo®.
Can Polynucleotides and Profhilo Be Combined?
This is one of the most common questions we hear in the polynucleotides vs Profhilo conversation, and the answer is yes, absolutely. In fact, combining the two is one of the most effective strategies available for comprehensive skin rejuvenation.
Because they work through different mechanisms – cellular regeneration and deep hydration respectively – they complement rather than duplicate each other. Polynucleotides improve the biological function and regenerative capacity of the skin. Profhilo® restores the moisture and structural environment that allows those healthier cells to thrive.
At The Bronte Clinic, we frequently recommend both treatments as part of a layered skin quality programme, particularly for patients whose skin is both dehydrated and showing signs of cellular decline. The combination delivers a level of improvement in skin health, texture, and radiance that neither treatment achieves alone.
How We Help You Decide
The choice between polynucleotides vs Profhilo, or whether you would benefit from both , is not something that can be determined from an article alone. It requires an assessment of your skin, your concerns, and your goals.
At The Bronte Clinic, our team takes time to evaluate your skin quality, hydration levels, texture, elasticity, and overall condition before recommending a treatment plan. We will explain clearly why we are suggesting one approach over another, and we will never recommend a treatment simply because it is popular or because you have asked for it by name. The recommendation is always based on what your skin needs.
Our team, led by Medical Director Dr Fiona McCarthy (MBChB, MRCP, PhD), delivers both polynucleotides and Profhilo® within a consultation-first framework that ensures every patient receives the right treatment for their skin, not just the one they walked in expecting.
Not sure whether polynucleotides, Profhilo, or both are right for you? Book a consultation at The Bronte Clinic in London or Surrey, and let our team give you a clear, personalised recommendation.
