Thinner skin that flushes easily and bounces back more slowly than it used to. Acne that has cleared but left pitted scars behind. These are often signs that the deeper structure of the skin is wearing down, which surface skincare can't repair. Plinest PN is a skin-regeneration treatment built on purified polynucleotide (PN), designed to prompt the skin to repair itself from within. This article covers what Plinest PN is, how it works, how it differs from other regenerative treatments, and who it suits.
Key Takeaways
- Plinest PN is a polynucleotide (PN) product extracted from trout gonad DNA and made with HPT (Highly Purified Technology) by the Italian company Mastelli.
- PN stimulates fibroblasts to produce collagen, elastin and glycosaminoglycans, the building blocks of healthy skin.
- It suits skin that needs overall quality repair: fine lines, laxity, acne scars, and recovery after lasers or other procedures.
- It differs from Rejuran in the source of the DNA (trout vs. salmon) and in each brand's own purification process.
- A course of at least 3 sessions, 3 to 4 weeks apart, is recommended, with results lasting 6 to 12 months.
What is Plinest PN and where does it come from?
Plinest is a polynucleotide (PN) skin-regeneration product developed by Mastelli, an Italian pharmaceutical company with more than 70 years of experience in skin regeneration. The PN in Plinest is extracted from trout gonad DNA and processed using HPT, a tightly controlled production method of more than 10 steps. The aim is purity of up to 99%, with no foreign proteins or contaminants that could cause irritation or an allergic reaction. Plinest holds CE Class III certification and has been studied clinically in several countries, including in Asian populations.
How PN works to regenerate skin
Once injected into the skin, PN is taken up by fibroblasts, the cells that build skin structure. It prompts them to produce more collagen, elastin and glycosaminoglycans, the raw material of strong connective tissue. PN is also hydrophilic, so it forms a three-dimensional gel beneath the surface that holds moisture, reduces transepidermal water loss and calms inflammation at the same time. The skin is nudged into a natural repair cycle. It isn't filled out with volume the way a filler does it.
Research summary: a 2024 study in Clinical, Cosmetic and Investigational Dermatology followed 30 Asian participants. After three PN HPT sessions, skin showed statistically significant improvements in tone evenness, texture, firmness and radiance. The results held through month 6 from the start of treatment, and no serious side effects were reported during the study.
What skin problems can Plinest PN help with?
- Repairing skin damaged by sun and pollution
- Stimulating collagen and elastin for more elasticity and firmness
- Deep hydration for dry or dehydrated skin
- Softening fine lines and making acne scars look shallower
- Helping skin recover faster and with less irritation after lasers and other procedures
Plinest PN vs. Rejuran vs. standard skin boosters
Plinest and Rejuran both belong to the polynucleotide family, but the details differ. Here is how they compare.
|
Plinest PN |
Rejuran |
Standard skin booster (HA) |
|
|---|---|---|---|
|
Source |
Trout gonad DNA |
Salmon DNA |
Synthetic hyaluronic acid (HA) |
|
Main mechanism |
Stimulates fibroblasts to build collagen and extracellular matrix |
Prompts tissue repair, similar to PN generally |
Mainly adds hydration and volume |
|
Standout feature |
High purity from the HPT process |
Several formulas for different pain levels and areas |
Quick, visible hydration |
|
Best for |
Deteriorating skin, acne scars, skin thinned by chronic inflammation |
Dull skin that needs a glow |
Mainly dehydrated skin, with no focus on structural repair |
How Plinest PN is done at The Vanish Clinic
- Consultation and skin assessment: the doctor assesses your skin and takes a history covering health, medications and supplements, to plan the right treatment.
- Numbing cream: applied to the area to reduce discomfort before the procedure.
- Injection: Plinest PN is placed with a fine needle or cannula at the planned sites, using a technique suited to the area.
- About 30 to 45 minutes: depending on the area treated and the technique used.
- Aftercare advice: personalized instructions from the doctor so your skin recovers as well as it can.
Who Plinest PN suits, and who should skip it
Good candidates
- People who want overall skin-quality repair, or have lax skin that's lost elasticity
- People with acne scars, or skin thinned by chronic inflammation
- People who want to restore their skin after lasers or other procedures
Not suitable, or check with your doctor first
- Anyone with a history of fish allergy or reactions to fish-derived products
- Anyone who is pregnant or breastfeeding
- Anyone with an infection or inflammation of the skin where the injection would go
- Anyone on blood-thinning medication, or with an immune disorder. Always tell your doctor before treatment
How many sessions, and how long do results last?
Plinest PN is generally given as a course of at least 3 sessions, 3 to 4 weeks apart. Changes can start to show 2 to 4 weeks after the first session, and results usually last 6 to 12 months. After that, top-up sessions roughly every 2 to 3 months can help maintain them. The right number and spacing depend on your skin, and your doctor will assess that.
Aftercare for Plinest PN
- For at least 24 hours, avoid makeup, touching the face and massaging the treated area.
- Stay out of strong sun and wear sunscreen while your skin recovers.
- Skip saunas and heavy workouts that make you sweat a lot for the first 2 to 3 days.
- Drink enough water and get enough rest to support recovery from within.
Plinest PN: frequently asked questions
Does Plinest PN hurt?
You may feel mild discomfort during the injections. The doctor applies numbing cream first to reduce it. Afterward, skin may feel tight or show redness at the needle points, which usually fades within one to two days.
How many sessions does Plinest PN need before I see results?
At least 3 sessions, 3 to 4 weeks apart, for the clearest result. Changes can start to show 2 to 4 weeks after the first session.
How is Plinest PN different from filler?
Filler adds volume directly and shows results right away. Plinest PN prompts the skin to repair itself by building new collagen and elastin. Results build gradually, look natural, and support the skin's structure over the long term.
How should I prepare for Plinest PN?
Get enough rest, avoid alcohol and cigarettes for at least 24 hours beforehand, and tell your doctor about any health conditions or medications so they can check it's suitable for you.
References
Lim, T. S., Liew, S., Tee, X. J., Chong, I., Lo, F. J., Ho, M. J., Ong, K., & Cavallini, M. (2024). Polynucleotides HPT for Asian skin regeneration and rejuvenation. Clinical, Cosmetic and Investigational Dermatology, 17, 417-431. https://doi.org/10.2147/CCID.S437942
Araco, A., & Araco, F. (2021). Preliminary prospective and randomized study of highly purified polynucleotide vs placebo in treatment of moderate to severe acne scars. Aesthetic Surgery Journal, 41(7), NP866-NP874. https://doi.org/10.1093/asj/sjab125
Cavallini, M., Bartoletti, E., Maioli, L., Massirone, A., Palmieri, I. P., Papagni, M., Priori, M., & Trocchi, G. (2021). Consensus report on the use of PN-HPT (polynucleotides highly purified technology) in aesthetic medicine. Journal of Cosmetic Dermatology, 20(3), 922-928. https://doi.org/10.1111/jocd.13679



