Polynucleotides — purified DNA fragments, usually from salmon or trout — are sold by clinics as an under-eye treatment for crepey skin, fine lines and dark circles. This page counts every published study that has injected them around the eyes, with its size, its design and what it was compared against. It reports the literature and does not recommend any treatment; whether a procedure suits a particular person is a question for a qualified clinician.
For what polynucleotides are and the wider evidence, see our polynucleotides for skin page; this page narrows to the eye area only.
How the studies were found
On 4 October 2026 we searched PubMed for polynucleotide, polydeoxyribonucleotide or PDRN in titles and abstracts, combined with periorbital, under-eye, infraorbital, dark circles, tear trough, crow's feet, eyelid or lower lid. The search returned 37 records. Many were irrelevant matches (the crow's-feet term also catches "crowding" in molecular-biology papers). We read every record and kept those reporting people whose eye area was treated with a polynucleotide product.
Eight remain, plus one retracted trial. Two reviews (a 2026 comparison of filler and polynucleotides for the under-eye area, and a multispecialty under-eye systematic review) and one manufacturer-authored laboratory paper with preliminary clinical observations (PMID 40076130) are not counted as studies.
The randomized studies — three, none against a placebo injection
| Study | People | Design and comparator | What it found |
|---|---|---|---|
| Lee 2022 (PMID 32248707), Korea | 27 | Randomized, double-blind, split-face; polynucleotide filler one side, non-crosslinked hyaluronic-acid filler the other; 3 sessions, 2 weeks apart | Visual-analogue and global improvement ratings not significantly different; roughness and pore volume improved more on the polynucleotide side; dermal density no different |
| Jeong 2020 (PMID 31680395), Korea | 30 | Randomized, patient- and evaluator-blinded, split-face crow's feet; Rejuran polynucleotide filler vs a polycaprolactone filler | No significant difference at 12 weeks; crow's-feet grade improved in 12 of 29 on the polynucleotide side and 14 of 29 on the other |
| Yogya 2022 (PMID 35501660; TCTR20201105007), Thailand | 30 (29 finished) | Whole face treated with radiofrequency microneedling three times; one side then given polynucleotides, the other saline, applied topically | 3D-imaging showed faster improvement on the polynucleotide side at 2 months |
Each of the three has an active comparator or a combined procedure. None compares a polynucleotide injection against a placebo injection, so none isolates what the polynucleotide itself does beyond what needle passes, a comparison filler or microneedling do. In the Thai study, the polynucleotide went onto skin just punctured by microneedles, which is a different delivery route from injection.
The single-group studies — five, measured against baseline
| Study | People | What was done | What was measured |
|---|---|---|---|
| Amado 2026 (PMID 42164086), UK, Italy, Malaysia, Turkey | 61 | Open-label observational; trout-derived polynucleotide gel, 7.5 mg/mL, usually 1 mL per side, three sessions 2–3 weeks apart | Dark circles: digital photo analysis at 1 and 3 months against baseline; reported a highly significant shift toward less severe pigmentation |
| Ziade 2026 (PMID 41689167), Lebanon | 42 | Prospective observational; Pluryal Silk 7.5 mg/mL, 2 mL per session | FACE-Q patient questionnaires for the lower eyelid and crow's feet at 1, 3 and 6 months; improvements against baseline, greatest at 3 months after two sessions |
| Kim 2022 (PMID 35357558), Korea | 30 (28 finished) | Single-arm; polynucleotide filler for crow's feet | Crow's-feet grade improved at 18 weeks; wrinkle, texture and pore values improved on 3D imaging; melanin did not change |
| Jeon 2026 (PMID 41361144) | 15 | Split-face, both sides polynucleotide: a conventional and an "ionized" version | Injection pain; wrinkle grading was secondary |
| Adel 2025 (PMID 41229581), Egypt, Canada, Serbia, Denmark | 5 | Case series; VAMP (Prollenium), 1 mL per side by cannula to the tear trough | Mild to moderate improvement at 3 months; authors say the size "precludes definitive conclusions" |
A single-group study shows that people looked or felt better than at the start. It cannot separate the product from time, the act of injection, swelling in the first weeks, or the expectation of improvement, because no one received anything else. In the 61-person dark-circle study, the conflict-of-interest statement records that some authors, including the corresponding author, have received research grants and consultancy fees from producers or distributors of fillers, Mastelli among them, and that one author received support from Mastelli to attend a congress.
The retracted trial
The largest periorbital trial — 218 people, randomized and evaluator-blinded, comparing a polycaprolactone filler with Rejuran for crow's feet (Choi 2025, PMID 39313949) — was retracted by the Journal of Cosmetic Dermatology in March 2026 (retraction notice PMID 41834780). It is not counted here. Our polynucleotides for skin page lists the retracted polynucleotide papers across all face areas.
Why the eye area is its own question
Under-eye skin is thinner than the rest of the face. In a 2025 ultrasound study of 31 patients across the face (Kim 2025, PMID 41000432), the lower eyelid had the thinnest dermis, 0.53 mm on average, against 1.18 mm at the temple and posterior cheek. That study measured thickness to set an injection depth for an automatic injector; it did not test outcomes. The 5-patient tear-trough series above opens by naming thin skin and superficial blood vessels as what makes the area a clinical challenge.
Regulation
FDA's device-approval (PMA) database returned no record for polynucleotide on 4 October 2026. The studies above were run in South Korea, Thailand, Lebanon, Egypt and Europe. In the US, a polynucleotide injection is not an FDA-approved device; our skin boosters guide covers how the category is treated in different markets.
What the record does not show
- Whether a polynucleotide injection improves under-eye skin more than a placebo injection. No published trial has tested it.
- Results beyond six months: the longest follow-up here is the 42-person questionnaire study.
- Any effect of a polynucleotide cream around the eyes — none of these studies used one. What eye creams declare, and the two small topical eye studies behind them, are on our PDRN eye cream page.
Side effects as reported
The studies report mild, short-lived reactions — injection pain, swelling, redness, bruising — and no serious adverse events, within follow-ups of three to six months and samples of 5 to 61 people. Studies this size cannot detect uncommon events. A 2026 study (Boonpethkaew, PMID 42457753) examined how polynucleotide injectables behave if injected into an artery (PMID 42457753), a risk shared by any injection near the eye's blood supply. Anyone considering an eye-area injection should discuss it with a qualified clinician.
Related reading
PDRN explains how polynucleotides differ from PDRN by fragment length. For the injectable hyaluronic-acid booster with a US approval, see our SkinVive analysis. For eye-area products applied to the surface, see peptide eye cream.
Sources
- PubMed E-utilities search, 4 October 2026: (polynucleotide*[tiab] OR polydeoxyribonucleotide[tiab] OR PDRN[tiab]) AND (periorbital OR "under-eye" OR "under eye" OR infraorbital OR "dark circles" OR "tear trough" OR crow* OR eyelid* OR "lower lid") [tiab] — 37 records, each read.
- Lee YJ et al. Journal of Dermatological Treatment 2022 (PMID 32248707).
- Jeong GJ et al. Journal of Cosmetic Dermatology 2020 (PMID 31680395).
- Yogya Y et al. Dermatology and Therapy 2022 (PMID 35501660; Thai Clinical Trials Registry TCTR20201105007).
- Amado R et al. Clinical, Cosmetic and Investigational Dermatology 2026 (PMID 42164086), including its conflict-of-interest statement.
- Ziade G et al. Journal of Cosmetic Dermatology 2026 (PMID 41689167).
- Kim JH et al. Aesthetic Plastic Surgery 2022 (PMID 35357558).
- Jeon W et al. Efficacy of ionization-adjusted PN filler in minimizing injection pain. Aesthetic Plastic Surgery 2026 (PMID 41361144).
- Adel N et al. Plastic and Reconstructive Surgery Global Open 2025 (PMID 41229581).
- Choi SY et al. Journal of Cosmetic Dermatology 2025 (PMID 39313949), retracted; retraction notice PMID 41834780.
- Kim JS et al. Dermal thickness across facial regions after polynucleotide injection with an automatic injector. Plastic and Reconstructive Surgery Global Open 2025 (PMID 41000432).
- Boonpethkaew S et al. Intravascular behavior of cutaneous polynucleotide injectables following intra-arterial exposure. Scientific Reports 2026 (PMID 42457753).
- openFDA device PMA endpoint, generic/trade name "polynucleotide" (no match), 4 October 2026.
