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Polynucleotides under the eyes: who they suit, how many sessions and how long they last

Polynucleotides under the eyes: who they suit, how many sessions and how long they last
Guide · under-eye areaMelior Clinics · updated 25.10.2026 · 4 min read
In shortPolynucleotides are injections of purified DNA fragments that strengthen and hydrate thin under-eye skin without adding volume. A course is usually 2–3 sessions 3–4 weeks apart, and results last up to 6 months. They don’t fill a hollow or remove eye bags.
2–3sessionscourse, 3–4 weeks apart
up to 6monthshow long results last
1–3daysredness, swelling, needle marks
€200HP Cell Vitaran I session at Melior

Prices as of 25.10.2026

Dark circles under the eyes: what polynucleotides can and can’t fix

Cause first – it decides the method.

Thin, dry skin and fine lines

What polynucleotides are for: denser, better-hydrated skin and a less tired look.

A hollow under the eye (tear trough)

Lost volume casts the shadow. Polynucleotides won’t fill it – that is a filler’s job.

Brownish tone, pigment

Often after rubbing the eyes, dermatitis or sun. Sun protection and treatment by a dermatologist help.

Bluish tone, visible veins

Vessels show through thin skin. Polynucleotides strengthen the skin but don’t remove the vessels.

Puffiness and eye bags

Allergy, thyroid disease or fat pads aren’t fixed by injections: see your GP first, or a surgeon for fat pads.

Polynucleotides vs under-eye filler vs Profhilo

Typical timings from Melior; the plan follows an assessment.

PolynucleotidesUnder-eye fillerProfhilo
Ingredientsalmon or trout DNA fragmentshyaluronic acid gelconcentrated hyaluronic acid
Jobstrengthen and hydrate thin skinfill the under-eye hollowhydrate face and neck, support elasticity
Adds volumenoyesno
Course2–3 sessions, 3–4 weeks apartusually 1 session2 sessions, about 4 weeks apart
Results showin days, clearer at 2–3 weeksat once, final in 1–2 weeksin 5–10 days
Lastsup to 6 months9–12 months6–12 months
At MeliorHP Cell Vitaran ITeosyal Redensity IIProfhilo
A Melior Clinics specialist examines the patient's under-eye area in a room with white cabinets and an oval mirror
First the specialist works out where the shadows come from

How long do polynucleotides under the eyes last?

Tap a point on the timeline.

Treatment day

Up to 45 minutes: very fine needles or a microcannula, numbing cream if needed. Afterwards mild redness, swelling and needle marks.

Bruising, swelling, bumps: possible side effects

Under-eye skin is thin, so swelling shows more here.

Common

  • redness and swelling – 1–3 days
  • needle marks, small raised spots
  • swelling shows more than on the cheeks

Less common

  • a bruise – usually gone within a week
  • a bump that lasts longer than a week
  • cold sore flare-up, allergic reaction

Let the clinic know

Very rare but urgent

  • skin turns pale or bluish at the injection site
  • pain gets worse
  • vision changes

Contact the clinic at once, or 112

Who polynucleotides under the eyes suit – and who not

A good fit if…

  • your under-eye skin is thin and dry
  • you have fine lines and a tired look
  • you don’t need added volume
  • you want a gradual change

Not done if…

  • allergy to fish or any ingredient
  • pregnancy or breastfeeding
  • autoimmune disease
  • infection, inflammation, cold sore or fever
  • a clotting disorder or blood thinners
  • recent laser or peel in the area

In more detail

Polynucleotides in plain words

They are purified DNA fragments from salmon or trout tissue. In the skin they support repair and the production of collagen and elastin, and they bind water. They don’t change your features or add volume – which is why they are chosen for thin under-eye skin.

At Melior the eye area has its own treatment, HP Cell Vitaran I; for the face and neck there are other polynucleotide treatments.

Profhilo vs polynucleotides: what's the difference?

Profhilo is concentrated hyaluronic acid: it hydrates and supports elasticity in the face and neck and usually lasts 6–12 months after 2 sessions. Polynucleotides are a different substance focused on repairing and strengthening thin skin, so they are chosen more often for the eye area.

The two can be combined on a specialist’s plan. A fuller comparison is in our skin boosters guide.

Polynucleotides vs under-eye filler

A filler is a hyaluronic acid gel: it fills the hollow (tear trough) at once and lasts 9–12 months. Polynucleotides don’t fill the hollow – they improve the skin itself. When both a hollow and thin skin play a part, the specialist sometimes combines the two.

To be fair about fillers: in this area they can cause lasting swelling, and with imprecise technique the shadows can look worse. That is why the decision follows an assessment. More on fillers: botulinum toxin vs dermal fillers.

Preparation and aftercare

For 24 hours before, alcohol is avoided, and aspirin, ibuprofen, omega-3 and vitamin E are put off if you take them on your own. Medicines prescribed by your doctor are not stopped on your own: they are discussed at the consultation, along with any fish allergy.

Afterwards: no eye make-up for 24 hours, and no rubbing or massaging the area. For 48 hours no sauna, hot bath, hard exercise or alcohol. For 7 days no sunbed or direct sun, SPF 50 daily, and no laser or peels.

What does the research say?

Evidence is still limited. A 2025 systematic review included 9 small studies (219 patients): side effects were mild and usually settled within a week, but the authors rated the evidence as low to moderate quality.

In a randomised split-face trial around the eyes (27 people, 3 sessions 2 weeks apart), overall aesthetic results did not differ between polynucleotides and non-cross-linked hyaluronic acid, but skin hydration and elasticity improved more with polynucleotides. In both groups the effect faded over time.

Frequently asked questions

How long do polynucleotides under the eyes last?

Usually up to 6 months after a course of 2–3 sessions. It depends on your skin, lifestyle and sun exposure. Maintenance sessions are usually every 3–6 months.

How much do polynucleotides under the eyes cost in Tallinn?

At Melior Clinics, HP Cell Vitaran I for the eye area is €200 per session (price list 25.10.2026). A course is usually 2–3 sessions. Under-eye filler is €345.

Do polynucleotide injections hurt?

Most people feel light pricking. Very fine needles or a microcannula are used, and numbing cream can be applied beforehand.

Will polynucleotides get rid of dark circles?

It depends on the cause. If the shadows come from thin skin, polynucleotides can soften them. They don’t fill a hollow, and pigment, visible veins and fat pads usually need other treatments or a dermatologist.

When will I see results?

Skin often looks fresher within a few days and clearer at 2–3 weeks. The fullest effect comes after a course of 2–3 sessions.

Can they be combined with botulinum toxin or filler?

Yes, on a specialist’s plan: polynucleotides improve the skin, while botulinum toxin and filler do different jobs. The specialist decides the order and the gap between treatments at the consultation.

Polynucleotides under the eyes: any downsides?

You need a course, the effect is temporary, and swelling or a bruise may show for a few days. People with a fish allergy can’t have them, and the research is still small.

Treatment at Melior Clinics

Polynucleotides under the eyes in Tallinn

€200up to 45 mincourse of 2–3 sessionsStockmann, 5th floor

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