Polynucleotides for the Under-Eye Area

The under-eye is one of the most requested — and most difficult — areas in aesthetic practice. It is also where polynucleotides have found some of their strongest advocates, because the concern there is frequently one of skin quality rather than volume. Getting the distinction right is the key to a good outcome.

Two Different Under-Eye Problems

Patients often describe "tired eyes" or "dark circles," but the causes differ, and so do the treatments:

• Volume loss / hollowing (the tear trough) — a groove or shadow from lost support. This is a filler question; a soft hyaluronic-acid filler placed appropriately restores the contour.
• Skin quality — thinning, crepiness, fine lines, a dull or fatigued surface — where the skin itself has deteriorated. This is where polynucleotides are positioned.

Where both coexist — as they frequently do — the two can be sequenced rather than substituted: address skin quality and contour as separate goals.

Why Polynucleotides Suit the Area

Under-eye skin is thin, mobile and low in supporting structure, which makes it prone to crepiness and a translucent, shadowed look. Because polynucleotides work by supporting the skin's own repair — encouraging fibroblast activity and improving the tissue environment — they aim at exactly this: thickening and improving the quality of thin periorbital skin over a course, without adding the volume that would be wrong here.

Where dark circles are driven by thin skin revealing underlying vasculature, improving skin quality can visibly help; where they are driven by hollowing or pigmentation, polynucleotides are not the answer, and expectations should be set accordingly.

The Products Positioned for the Under-Eye

Two presentations are formulated with this region in mind:

• Plinest Eye — the periocular member of the Mastelli range
• Rejuran i — the under-eye presentation of the Rejuran range

Both are used with careful, superficial technique appropriate to the delicacy of the area.

Treatment Course and Aftercare

A short course — commonly around three sessions spaced a few weeks apart — is typical, with gradual improvement over the following weeks. Because the skin here is so thin, transient swelling, redness and small injection-point bumps are especially common in the first day or two; patients should be forewarned that small papules can take a little time to settle. A cold compress and gentle handling help.

Contraindications

Standard exclusions apply — hypersensitivity, pregnancy and lactation, active infection or inflammation at the site, and bleeding disorders — plus the fish-allergy screening specific to polynucleotides. The proximity to the eye makes careful technique and patient selection especially important.

The Takeaway

For under-eye concerns rooted in skin quality — thinning, crepiness and a fatigued surface — polynucleotides such as Plinest Eye and Rejuran i are a well-matched, regenerative option, while true hollowing remains a filler decision. Naming the right problem first is what makes the difference. Explore the polynucleotide range.