What is PN, and how does it relate to skin?
Polynucleotides, or PN, are molecular chains made up of nucleotide units. Some injectable skin products use fish-derived material that undergoes processing and purification before being formulated into a gel. Formulations and intended uses vary between products.
For the products discussed in this collection, the manufacturers of Vitaran and Plinest describe uses related to skin hydration and elasticity. For someone choosing a treatment, this means considering the quality of the skin in the area concerned. Start with what you want to improve, then consider the product and amount that fit the plan. [1] [2]
From ingredient properties to changes in the skin
An explanation of how PN works helps you understand the idea behind a product. To understand what it can help with, it is also useful to look at human studies involving the area you are interested in.
For example, a study of a PN product around the eyes assessed hydration, elasticity and skin texture, while another investigated PN-HPT for depressed acne scars. When you hear that PN has been studied, the next questions are: which formulation, for which concern, and what changes were measured? Those details help set expectations that fit the evidence. [3] [4]
Choose your next read by the area you want to address
If you are interested in the under-eye area, begin by distinguishing dryness and fine lines from dark circles or shadows caused by hollows. For acne scars, consider the scar type alongside the surrounding skin. For thinning hair, start with the cause before choosing a scalp product.
Each topic has its own article, so you can explore what is relevant to you without applying the same explanation to every area.
Understand the plan before your first appointment
PN is injected into the selected area. The number of sessions, their spacing and follow-up should reflect the product and the goal of treatment. For example, the manufacturer’s guidance for Plinest in certain skin groups describes 3 sessions, 14–21 days apart. This is an example for that product, rather than a universal schedule for every PN formulation. [2]
Before treatment, establish the exact product, amount, treatment area, cost and follow-up schedule. Mention any important events when planning your appointments, as redness, swelling, small raised bumps or bruising can occur after injections.
What should you mention before treatment?
Tell the clinician about a fish allergy, pregnancy or breastfeeding, and any infection or inflammation in the proposed treatment area. This allows contraindications and suitability to be checked against the actual product. Purification does not replace this medical-history screening.
Start comparing Vitaran and Plinest
Once you understand your goals, visit BEHAP’s main PN programme page for Vitaran and Plinest. It brings together treatment areas, amounts, prices and enquiry options, making it easier to continue your comparison.
This article provides general information, not personalised medical advice. PN injections are a medical procedure. Results can vary, and medical history and suitability must be assessed before treatment.
