What Is Plinest? Polynucleotides

What is Plinest?

Plinest is an injectable made by the Italian company Mastelli, containing purified polynucleotides and used with the aim of supporting skin quality.

Plinest belongs to the class of polynucleotide products popularly known as “salmon DNA”. It contains long nucleotide chains obtained by purifying fish-derived DNA, and the manufacturer describes its purification process under its own technology name. The product is injected into the skin in small amounts and does not change your genetic make-up. The word “DNA” refers to the origin of the ingredient; it does not mean any interference with the genetic information in your cells.

Mastelli is an Italian company long associated with polynucleotide and PDRN products. The Plinest range may include variants for different areas, such as the face, the eye area and the scalp; which variants are available in Türkiye is checked separately. The product's legal status in Europe and Türkiye, its batch number and expiry date are verified before treatment, and you may ask to see the packaging details.

What does Plinest aim to do, and what does it not do?

Plinest aims to support skin-quality features such as hydration, texture and elasticity; it does not add volume, lift sagging skin or relax expression lines.

The changes being sought are a more even texture, softer fine lines, a more hydrated and fresher appearance, and support for elasticity. It may be considered for skin that looks sun-damaged, dry or dull. Change is gradual and is followed as sessions progress, and response differs from person to person. Age, skin type, smoking and sun exposure are among the factors that can affect the outcome.

Volume loss, marked sagging, deep wrinkles and lines caused by muscle movement may not improve with Plinest alone. In those cases fillers, botulinum toxin, biostimulators or energy-based devices may be considered. Comparing Plinest with other polynucleotide products is not a ranking of superiority; the choice is made by the physician according to your needs, the area and the product's instructions for use. Where appropriate, methods can be sequenced within one plan.

Who may not be suitable for Plinest?

Plinest is generally not recommended, or is postponed, in cases of fish allergy, pregnancy, breastfeeding or active infection at the treatment site.

Because the product is obtained from fish-derived DNA, a history of fish allergy is specifically asked about at the consultation. There is insufficient safety data for pregnancy and breastfeeding, so treatment is deferred until afterwards. If you have a cold sore, active acne or another skin infection, the area is allowed to heal first. Known hypersensitivity to any ingredient is also a reason not to proceed, and other options are then discussed.

Active autoimmune disease, bleeding disorders, blood-thinning medication and a tendency to keloid scarring need further assessment. Recent laser, peel or filler treatments may also affect timing. It is important to share your medicines, supplements and previous treatments at the consultation. In some cases treatment is postponed or a different approach is suggested; the decision is made by the physician after reviewing everything in person.

How is it performed, and how many sessions are needed?

After a topical anaesthetic cream if needed, the product is placed into the skin with a fine needle or cannula; plans usually involve several sessions a few weeks apart.

The skin is cleansed and, if needed, a topical anaesthetic cream is applied. The product is placed in small points with a fine needle, or with a cannula, into the planned areas. You may feel stinging and pressure; sensitivity varies from person to person. Treatment time depends on the area but is usually a short session. Afterwards the area is cleansed and most people return to everyday activities the same day.

A common plan is several sessions a few weeks apart; the exact number and intervals depend on the product's instructions for use, the area and your skin. How long the effect lasts varies, and maintenance timing is agreed at follow-up. If combined with other treatments, the order is set by the physician. If you are travelling, allow a few days before flying home so that redness and bumps can settle.

What can I expect afterwards, and what are the risks?

Redness, swelling, bruising and small bumps at the injection points can occur; these usually settle within a few days.

Small raised bumps (papules), tenderness and mild swelling may appear at the injection points and usually settle within a few days. Bruising may be more noticeable if you take blood thinners. Rarely, an allergic reaction, infection or prolonged redness can develop. If you notice increasing pain, fever, widespread itching, breathing difficulty or a marked change in skin colour, contact your physician without delay.

You are advised not to wear make-up on the first day and not to rub the area. Avoiding saunas, steam rooms, strenuous exercise and alcohol for a few days, using sunscreen and cleansing with gentle products are generally recommended. When you can return to retinoids or acid-based products, and any other personalised advice, is explained after treatment. At follow-up the response is reviewed and the next session timed.

Frequently asked questions

Is Plinest salmon DNA?

Plinest contains polynucleotides obtained from purified fish-derived DNA, which is why it is grouped with “salmon DNA” products. Details of the source species are checked against the manufacturer's information.

What is the difference between Plinest and Rejuran?

Both contain polynucleotides but come from different manufacturers, with different formulations, variants and instructions for use. Neither is regarded as superior; the physician makes the choice.

Can Plinest be used around the eyes?

The Plinest range may include a variant designed for the eye area. Whether it is suitable for you, and whether it is available in Türkiye, is assessed at the consultation.

When can I wear make-up after Plinest?

Avoiding make-up on the first day is generally advised. The exact timing is given by your physician based on the area treated and how your skin responds.

Is Plinest used for hair loss?

Plinest may be considered for hair loss only as a supportive option; the Plinest range may include a variant designed for the scalp, with the aim of supporting scalp quality. Hair loss has different causes, such as iron deficiency, thyroid problems, hormonal changes or genetic predisposition, so the cause should be investigated first. Plinest on the scalp does not replace treating that cause.

Can Plinest be used for neck lines?

Plinest may be considered for horizontal neck lines and sun-exposed skin on the neck and décolletage, with the aim of supporting hydration and texture in thin skin; area choice follows the product's instructions for use. Deep neck lines, loose neck skin or prominent muscle bands may not improve with Plinest alone and may need other methods.

What does PN-HPT mean on Plinest?

PN-HPT is the technology name Mastelli uses for the high-level purification of the polynucleotides in Plinest; sources expand it as “Polynucleotides Highly Purified Technology” or “High Purification Technology”. The term does not change Plinest's ingredient class: it still contains fish-derived polynucleotides. Purification aims to remove unwanted components such as proteins; even so, Plinest is generally not recommended for people with a fish allergy.

Will my skin look worse than before when Plinest wears off?

No, when Plinest wears off your skin is not expected to look worse than before treatment; it gradually returns to its own natural ageing course. Polynucleotides are broken down naturally by the body over time. How long the effect lasts depends on age, sun damage, smoking and skincare habits; maintenance sessions are an option if you want to keep supporting the result.

Sources (3)

This content is for general information and does not replace a personal medical assessment.

What Is Plinest?