SuneKOS and polynucleotides sit in the same broad category of skin quality treatments. Neither adds volume, neither changes your facial structure, and both work by stimulating the skin’s own regenerative processes. Patients researching one often come across the other and find themselves wondering whether they are essentially the same thing with different branding. They are not.
The distinction matters, and understanding it will help you make a more informed decision about which treatment, or which combination, is genuinely right for your skin. Both are excellent. My view is that they have different strengths, and for many patients, using them together gives better results than either would alone.
SuneKOS vs Polynucleotides at Health & Aesthetics
How Each Treatment Works
SuneKOS
SuneKOS is an injectable developed by the Italian company. It combines low-molecular-weight hyaluronic acid with a patented blend of six amino acids: glycine, L-proline, L-leucine, L-lysine, L-valine and L-alanine. These six amino acids are the direct building blocks of collagen and elastin, and when injected into the dermis they provide the raw materials the skin needs to produce both simultaneously.
This dual stimulation of collagen and elastin is what makes SuneKOS distinctive. Most biostimulatory treatments target one or the other; SuneKOS triggers what its clinical data describes as ordered, simultaneous production of both, leading to measurable improvements in skin firmness, elasticity and hydration. The process is called dermal biogenesis, essentially skin regeneration from within.
SuneKOS comes in two formulations. SuneKOS Performa is the upgraded and enhanced version of the original SuneKOS 200, with a refined ratio of amino acids to hyaluronic acid that clinical data suggests is around 40% more effective than its predecessor at stimulating collagen and elastin. It is suited to the face, under-eyes, neck, décolleté and hands. SuneKOS 1200 uses a medium molecular weight HA and is used alongside Performa to provide additional structural support in cases of more advanced skin laxity or deeper wrinkles. For many patients, the two are used in combination.
Polynucleotides
Polynucleotides are long chains of DNA fragments, typically purified from salmon DNA which has a high degree of biocompatibility with human tissue. When injected into the dermis, they work at a cellular level by activating fibroblasts, stimulating the production of collagen and elastin, improving hydration, reducing inflammation and supporting the skin’s barrier and repair mechanisms.
Where SuneKOS provides the amino acid building blocks that the skin uses to construct collagen and elastin, polynucleotides take a slightly different route: they enhance the cell’s own signalling pathways to increase the efficiency and volume of the skin’s natural repair processes. They also have meaningful anti-inflammatory properties, which is why they work particularly well in skin that is reactive, rosacea-prone or showing damage from sun exposure.
At Health & Aesthetics we use Plinest polynucleotides, a product we rate highly for the quality of its purification and its track record in clinical practice, particularly around the delicate under-eye area.
Which is better for the under-eye area?
Both SuneKOS Performa and polynucleotides (Plinest) are well suited to the periocular area and are among the few injectables genuinely safe to use in this zone. SuneKOS Performa tends to work well for fine lines, crepey texture and dark circles caused by skin thinning. Polynucleotides are particularly effective where the concern is more about skin quality, inflammation or damage. In practice, many patients benefit from a course of one followed by the other, or a combination protocol designed around their specific anatomy and goals.
Side-by-Side Comparison
| SuneKOS | Polynucleotides | |
|---|---|---|
| What it is | An injectable combining low-molecular-weight hyaluronic acid with a patented blend of six amino acids (glycine, L-proline, L-leucine, L-lysine, L-valine and L-alanine) to stimulate collagen and elastin production | Purified chains of DNA fragments, typically derived from salmon, that stimulate the skin’s own repair and regeneration processes at a cellular level |
| How it works | Amino acids provide building blocks for collagen and elastin. HA hydrates and activates the extracellular matrix, supporting dermal biogenesis | Activates fibroblasts, stimulates collagen and elastin production, reduces inflammation, and strengthens the skin barrier |
| Primary goal | Skin regeneration, hydration, and elasticity restoration without adding volume | Deep cellular repair and regeneration for damaged or ageing skin |
| Best for | Fine lines, laxity, under-eyes, neck, dull or dehydrated skin | Sun damage, acne scarring, rosacea, sensitive or reactive skin |
| Not ideal for | Significant volume loss or deep structural folds | Volume enhancement or facial contouring |
| Sessions needed | 3 to 4 sessions, 7 to 14 days apart | 3 to 4 sessions, 2 to 4 weeks apart |
| Downtime | Minimal, mild redness or swelling for 24 to 48 hours | Minimal, similar temporary redness or swelling |
Which One Is Right for Me?
Because both treatments work on skin quality rather than volume, the decision comes down to what the skin actually needs and the mechanism that best addresses it. Here is a practical starting point:
- Choose SuneKOS if your main concern is fine lines, skin laxity, crepey or thin skin, or loss of elasticity, particularly around the eyes, neck or décolleté. The simultaneous stimulation of both collagen and elastin makes it particularly effective for improving skin firmness and texture in these areas.
- Choose polynucleotides if your skin is inflamed, sun-damaged, reactive or prone to rosacea, or if you have concerns including acne scarring or significant hyperpigmentation. The anti-inflammatory and deeper regenerative properties of polynucleotides make them better suited to skin that needs repairing as much as refreshing.
- Consider both if you want to address skin quality from multiple angles. A common and effective protocol is to complete a course of polynucleotides first to calm and repair the skin, then follow with SuneKOS to build structure and elasticity. The two treatments are complementary rather than competing.
- Consider adding SuneKOS 1200 if you have more advanced skin laxity or sagging. Used alongside SuneKOS Performa, it provides additional cushioning and structural scaffolding that addresses concerns that Performa alone may not fully reach.
- If you are unsure, a consultation is the right starting point. Neither of these treatments is straightforward to select without examining the skin, taking a history and understanding what you actually want to achieve.
Frequently Asked Questions
Are SuneKOS and polynucleotides the same thing?
No. They are both injectable skin quality treatments that work by stimulating the skin’s own processes, but their ingredients and mechanisms are entirely different. SuneKOS uses hyaluronic acid and amino acids; polynucleotides use purified DNA fragments. They act on the skin through different biological pathways, which is why they have different strengths and why combining them can work so well.
Can I have both treatments at the same clinic visit?
In many cases, yes. We will advise on the best sequencing and timing for your specific skin and goals during your consultation. Some patients benefit from completing one course before beginning the other; others can have both on the same day. There is no single correct answer and the approach will be tailored to you.
How many sessions will I need?
SuneKOS typically requires three to four sessions spaced seven to fourteen days apart for the initial course, with maintenance every six to nine months. Polynucleotides generally require three to four sessions spaced two to four weeks apart, with maintenance every four to six months. These are guidelines; your individual plan will depend on your skin condition, age and how you respond to treatment.
Which lasts longer?
Polynucleotides tend to produce longer-lasting results because they stimulate genuine tissue regeneration at a cellular level, which persists after the product itself has been absorbed. SuneKOS also has longevity through its ongoing collagen and elastin stimulation, but maintenance treatments are typically needed a little more frequently. Both are significantly longer-lasting than simple hydration treatments.
Are either of these treatments suitable for younger skin?
Yes. SuneKOS in particular is well suited to younger patients who want to address early signs of ageing, maintain skin quality, or treat concerns such as fine lines around the eyes before they become more established. Polynucleotides are also appropriate for younger skin, especially where the concern involves inflammation, scarring or sun damage. Neither treatment requires signs of significant ageing to be effective.
I have been told polynucleotides are not well regulated in the UK. Should I be concerned?
This is worth taking seriously. Some practitioners have raised concerns about the regulatory framework around polynucleotides in the UK, and it is true that the evidence base is still developing compared to more established treatments. That said, the products we use at Health & Aesthetics are carefully selected for quality, purity and safety profile. Ameela is a product I am confident in. The most important safeguard is always the experience and clinical judgement of the practitioner administering the treatment, not the product alone. This is one of the many reasons why an in-person medical consultation is non-negotiable before any injectable treatment at this clinic.
My Opinion
SuneKOS and polynucleotides are both genuinely useful treatments, and I would not advocate strongly for one over the other as a blanket recommendation because the right choice depends entirely on the individual. What I do believe is that the binary framing of these two treatments as competitors is unhelpful. They address skin quality from different directions, and for many patients, a thoughtful combination delivers results that neither would achieve on its own.
If you have been researching both and still cannot decide, that is entirely reasonable. Book a consultation, bring your questions, and we will work through it together based on what your skin actually needs.
