PDRN vs PRP: Which Skin Treatment Is Better?

Short answer: No trials have compared PDRN and PRP head to head, so neither has been proven better. PRP uses growth factors from your own blood and has evidence for skin thickness and elasticity. PDRN, often sold as polynucleotides, uses purified salmon DNA and has evidence for skin quality and scars. PDRN products are more consistent; PRP varies with preparation and your own blood.

PDRN vs PRP is a common choice for anyone looking at "regenerative" skin treatments. PRP, or platelet-rich plasma, is the treatment behind the "vampire facial". PDRN and polynucleotides are the "salmon DNA" injections. Both claim to support the skin's own repair, both are popular for under-eyes and both cost several hundred pounds a course. This guide compares them on evidence, results, cost and safety. For the difference between PDRN and polynucleotides, see is PDRN the same as polynucleotides.

Key takeaways

• No head-to-head trials directly compare PDRN with PRP for facial rejuvenation, so this guide does not rank them.

• A 2025 systematic review of 20 PRP and PRF studies (514 patients) found the strongest evidence for skin thickness and elasticity, and the weakest for hydration[1].

• Reviews of PDRN and polynucleotides report improvements in skin quality, scars and healing, with small studies[2,3].

• PRP results depend heavily on how it is prepared, which varies between clinics[1,4].

PDRN vs PRP at a glance

How PRP works

Platelet-rich plasma is made from a small sample of your own blood. The sample is spun in a centrifuge to separate the platelets, which are concentrated and then injected or applied after microneedling. Platelets release growth factors that are involved in wound healing, which is why PRP is thought to stimulate collagen and repair. Because PRP comes from your own blood, the risk of allergy is very low. However, the number of platelets and growth factors varies between people and between preparation systems[4].

How PDRN works

PDRN is a mixture of DNA fragments, usually purified from salmon or trout sperm[5]. It is thought to activate adenosine A2A receptors, which reduce inflammation and support blood vessel growth, and to supply building blocks that cells reuse[5]. Longer chains are often sold as polynucleotides. These are manufactured products with a set concentration, so each syringe should be similar to the last.

What the evidence says about PDRN vs PRP

A 2025 systematic review of PRP and PRF (platelet-rich fibrin) for facial rejuvenation included 20 studies with 514 patients[1]. Significant improvement was reported in 80% of studies on skin thickness, 75% on elasticity, 40% on wrinkles, 33% on texture, 17% on pigmentation and none on hydration[1]. Patient satisfaction was high and no serious adverse events were reported[1]. A 2026 review of PRP and PRF around the eyes found PRP only moderately effective for dark pigmentation, with mixed results for wrinkles, and noted that varied preparation methods limit conclusions[4].

For PDRN, a 2025 systematic review of polynucleotides in aesthetic medicine and a 2026 review of randomised trials found improvements in skin quality, elasticity, scars and healing[2,3]. Again, studies were small, products and doses varied, and follow-up was short.

Because the two have not been compared directly, any claim that one is clearly better is not proven. They appear to help slightly different things, and both have limited evidence.

Practical tip: PRP needs a blood draw, which may not suit people who faint with needles or have blood disorders. Most PDRN and polynucleotide products are fish-derived. Tell your practitioner about any fish allergy, blood thinners or bleeding problems before either treatment.

PDRN vs PRP for under-eyes

Under-eyes are one of the most common reasons people consider either treatment. A 2025 systematic review of under-eye treatments concluded that polynucleotides mainly target texture and fine lines, while fillers remain the main option for hollows[6]. For PRP, a 2025 review comparing PRP with PRF around the eyes found PRP appeared more effective for pigmentation, while PRF helped texture and fine lines[7]. So the right choice depends on whether your main concern is crepey skin, dark pigmentation or hollowing. See PDRN for dark circles for detail.

Cost and downtime

Course length, downtime and price vary by clinic, product and preparation system, so ask for a written quote for the full course, including any top-ups. Both treatments commonly cause short-lived redness, swelling or bruising at injection sites. PRP also needs a blood draw, which adds time to each appointment. For PDRN prices, see how much PDRN injections cost in the UK.

How to choose between PDRN and PRP

1. Name your main concern: texture, fine lines, pigmentation, scars or hollows.

2. Ask the clinic what evidence supports each option for that concern.

3. For PRP, ask which preparation system they use and how it is prepared.

4. For PDRN, ask for the product name and see the sealed packaging.

5. Get a written plan with total cost, including top-ups.

6. Take standardised photos before treatment so you can judge results.

Who should take care

• Fish allergy: avoid salmon-derived PDRN; tell your practitioner[5].

• Blood disorders, low platelets or blood thinners: PRP may not be suitable; speak to your GP first.

• Pregnancy or breastfeeding: postpone elective injections.

• Active infection or cold sores: postpone either treatment.

Licensing of non-surgical cosmetic procedures in England is planned but not yet in force[8]. Check training and insurance before booking.

Can you combine PDRN and PRP?

Some clinics alternate or combine them, for example PRP after microneedling and polynucleotides by injection. There is limited evidence on whether combining them is better than either alone. If a clinic suggests both, ask why and what result they expect. For another regenerative option, see PDRN vs exosomes.

Why consistency matters when comparing PDRN and PRP

One of the biggest differences between the two is consistency. A PDRN or polynucleotide syringe is manufactured to a set concentration, so the product you receive at your third session should match the first. PRP is different. The number of platelets and growth factors depends on your own blood that day, the preparation kit, the centrifuge settings and whether anything is added. Reviews of PRP repeatedly highlight this variation as a reason results differ between studies[1,4].

That does not make PRP worse, but it makes it harder to predict. If you choose PRP, ask the clinic which system they use and whether they measure platelet concentration. If you choose PDRN, ask for the product name and batch number.

The bottom line

PDRN and PRP have not been compared head to head, so neither has been proven better. PRP uses your own blood and has the best evidence for skin thickness and elasticity, but varies with preparation. PDRN uses a consistent manufactured product with evidence for skin quality and scars, but is fish-derived. Choose based on your main concern, your health and the clinic's expertise.

FAQs

Is PDRN better than PRP?

There are no head-to-head trials, so neither can be called better[1,2].

Is PRP safer than PDRN?

No serious adverse events were reported in the PRP review[1], and polynucleotide reviews report mostly mild, short-lived side effects[2]. PRP avoids fish allergy risk; PDRN avoids a blood draw.

Which lasts longer, PDRN or PRP?

Clinics often suggest top-ups, but long-term data are limited for both, so there is no reliable answer.

Is PDRN the same as a vampire facial?

No. A vampire facial uses PRP from your own blood; PDRN uses purified salmon DNA.

Which is better for under-eyes?

It depends on the cause. Polynucleotides target texture; PRP may help pigmentation[6,7].

Related reading

• PDRN vs Exosomes

• PDRN for Dark Circles

References

1. Qin N, Kochheiser M, Akosman I, et al. Systematic review of platelet-rich plasma and platelet-rich fibrin in facial rejuvenation. Ann Plast Surg. 2025;94(4S Suppl 2):S376–S389.

2. The effectiveness of polynucleotides in esthetic medicine: a systematic review. J Cosmet Dermatol. 2025;24(2):e16721.

3. Alhussain AM, et al. Polynucleotides and polydeoxyribonucleotides for skin rejuvenation, postoperative scar prevention, and wound healing: a systematic review of randomized clinical trials. Cureus. 2026;18(7).

4. Tai K, Morrissette M, Li JH, et al. Platelet-rich plasma and platelet-rich fibrin in periorbital esthetics: systematic review and clinical applications. Facial Plast Surg Clin North Am. 2026;34(3):365–394.

5. Squadrito F, Bitto A, Irrera N, et al. Pharmacological activity and clinical use of PDRN. Frontiers in Pharmacology. 2017;8:224.

6. Beer J, Boghosian T, Sherif R, et al. What's new with under eye treatment: a multispecialty systematic review of recent under eye treatments. Dermatol Surg. 2026;52(2):155–163.

7. Sollitto CF, Narduzzi M, Wolinsky C. A systematic review of platelet-rich plasma versus platelet-rich fibrin for periorbital rejuvenation. J Cosmet Dermatol. 2025;24(11):e70524.

8. Department of Health and Social Care. The licensing of non-surgical cosmetic procedures in England: consultation response. GOV.UK, 7 August 2025.

This article is for general information only and is not a substitute for personalised advice from a pharmacist, GP or other qualified healthcare professional. If you have a reaction or a medical concern, seek professional advice.