Polynucleotides vs PRP: which regenerative treatment fits your skin goals

Two treatments sit next to each other in the regenerative aesthetics menu and patients pick on vibes, which is not how this should work. Polynucleotides and PRP are both biological stimulators, but the biology is fundamentally different. One arrives in a pre-filled syringe from a Korean manufacturer. The other is drawn from your arm, spun in a centrifuge, and injected back in within the hour. The choice is not interchangeable; it depends on what you want the regenerative work to do and how predictable you need the dose to be.

What polynucleotides actually are

Polynucleotides are short to medium chains of DNA nucleotides, purified from salmon sperm or trout testes. Molecular weight typically sits between 50,000 and 1,500,000 Daltons. Brand names you will see in clinic include Plinest, Newest, and Ameela, in pre-filled syringes at 7.5 to 20 mg/ml. Once injected into the dermis, the fragments are slowly degraded by tissue nucleases. The breakdown products act as signaling molecules: they bind purinergic receptors on fibroblasts, stimulate collagen and elastin synthesis, support angiogenesis, and trigger an anti-inflammatory cascade. The course is three to four sessions spaced two to four weeks apart.

What PRP actually is

Platelet-rich plasma is the concentrated platelet fraction of your own blood. A clinician draws 10 to 60ml, spins it in a centrifuge for around 10 minutes, separates the platelet-rich layer, and either injects it directly or applies it after microneedling. Platelet concentrations typically run three to seven times baseline, and the prep also contains growth factors like PDGF, TGF-beta, VEGF, and EGF.

Once delivered, the platelets degranulate within minutes, releasing the growth factors locally. Fibroblasts respond. Collagen ramps up. Vascularity improves. The clinical course is similar to polynucleotides, three sessions over three to four months, with maintenance every six to twelve months. The active ingredient is your own biology, which makes each session unique to the patient on the day.

Side by side

How to choose

For under-eye hollows, dark circles with skin quality involvement, and fine periorbital texture, polynucleotides have the cleaner published case. The standardized molecular weight and concentration make outcomes more predictable across patients. PRP also works in this area but the result varies more with the patient’s blood quality and the centrifuge protocol used.

For androgenetic hair loss as an adjunct to medical treatment, PRP is the better-evidenced choice. Polynucleotides have early data in this indication but the bulk of published work sits with PRP. For overall skin quality, mild laxity, and texture, either treatment is reasonable.

Fish allergy rules out polynucleotides. Pregnancy and breastfeeding rule out both as elective cosmetic treatments. Active autoimmune disease and bleeding disorders need a frank conversation with the clinician.

The contrarian read

The clinic loves PRP because the consumables cost is low and the per-session price is high. From a business angle, drawing your blood and spinning it is more profitable than buying pre-filled syringes from a distributor. That does not make PRP the wrong treatment; it explains why some clinics nudge toward it when polynucleotides would actually be the cleaner choice for the patient’s stated concern.

The reverse bias also exists. Premium aesthetic clinics in London and Seoul push polynucleotides because the branding is newer and the pricing premium is easier to defend. For a patient who responds well to their own growth factors and wants a treatment with no foreign material, PRP is the more honest option.

Real numbers

A 2022 systematic review of polynucleotides for facial skin found around 30 to 50 percent improvement in dermal density and elasticity over three sessions, with the strongest signal in under-eye and perioral regions. PRP studies for similar indications report broadly similar improvement ranges but with wider variance, around 20 to 60 percent depending on the protocol and platelet yield.

Three sessions of polynucleotides typically lands around $1,500 to $2,400 total. Three sessions of PRP runs $1,500 to $3,600 depending on geography and protocol. Both are roughly half the cost of fractional CO2 resurfacing for a similar quality-of-skin outcome, although the modalities are not interchangeable for indications like deep scarring or significant photoaging.

Frequently asked questions

Can polynucleotides and PRP be combined? Yes, in sequenced sessions. Some clinics alternate them across a course.

How long do results last? Six to twelve months for both, with maintenance every six to twelve months.

Are polynucleotides safe in pregnancy? Not recommended as an elective cosmetic treatment.

Does PRP work for under-eye hollows? Yes, with variable results. Polynucleotides have more consistent published outcomes in this area.

Will either treatment replace filler? No. These are skin quality treatments, not volume replacement.

Recovery from injectables benefits from a minimal, fragrance-free routine for the first 48 hours. BioCell Renewal Cream fits that window without competing actives. For comparison with other regenerative modalities, see exosome facials and the device-led approach in RF microneedling vs RF only. Tag hub: regenerative skincare.

Sources

Cavallini M et al. Polynucleotides for aesthetic medicine: a systematic review. Journal of Cosmetic Dermatology, 2022 (PubMed). Alves R, Grimalt R. A review of platelet-rich plasma: history, biology, mechanism of action, and classification. Skin Appendage Disorders, 2018 (PubMed/NIH). AAD.org/” rel=”noopener” target=”_blank”>American Academy of Dermatology, regenerative aesthetics overview.