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• 20,000 PPM PDRN: Promotes cell renewal and boost collagen and Hyaluronic Acid levels.
• 18% Emollient Blend: Gives instant glass skin glow.
• Glycerin: For optimal hydration.

Not all PDRN serums are created equal - and most won't tell you how much PDRN is actually in the bottle. Our PDRN Serum contains a disclosed, verified 20,000 PPM (2%) of INJIN PDRN - a patented vegan polynucleotide ingredient with clinical data to back it up. When choosing a PDRN or polynucleotide serum, look for:

• Disclosed PDRN concentration (PPM or %)
• Clinically tested ingredient, not just a clinically tested formula
• Low molecular weight for skin penetration
• Vegan, plant-derived source
• Safe for daily use - morning and evening

 INKEY PDRN Serum meets every one of these markers. At $18, it's also the most accessible clinical-strength PDRN serum on the market.

WHAT IS PDRN? PDRN stands for Polydeoxyribonucleotide, it’s a DNA fragment that helps your skin repair and renew itself.

WHAT IS A POLYNUCLEOTIDE SERUM? Polynucleotide serums and PDRN serums are the same thing. They help skin repair, renew, and regenerate by supporting collagen and hyaluronic acid production. Our version uses vegan, plant-derived PDRN rather than the traditional salmon-derived source.

WHERE DOES IT COME FROM? Artemisia capillaris, a tough little plant known for its resilience and healing benefits AND contains 20,000ppm VEGAN PDRN.

DOES PDRN SERUM ACTUALLY WORK? Yes - when formulated correctly. Our PDRN Serum uses 20,000 PPM of clinically tested INJIN PDRN, which is proven to outperform animal-derived and standard vegan alternatives in clinical studies. You'll see an instant glass skin effect from the first use, with longer-term results in skin smoothness and firmness in 4 weeks with consistent use.

HOW MUCH PDRN IS IN IT? 20,000 PPM of Vegan PDRN.

WHAT IS PPM? Parts per million.

WHAT ARE THE BENEFITS OF PDRN SERUM? PDRN serum benefits include: skin cell renewal, boosted collagen and hyaluronic acid production, visibly smoother and firmer skin, reduced appearance of fine lines and wrinkles, and an instant glass skin glow (in our formula, thanks to an 18% emollient blend). It's also suitable for use before or after microneedling and confirmed safe for use during pregnancy and breastfeeding.

IS THIS SUITABLE FOR SENSITIVE SKIN? We'd advise patch testing to be sure that is it suitable for you if you are prone to sensitivity. 

HOW DO I LAYER PDRN SERUM IN MY ROUTINE? Apply PDRN Serum as your treatment step after cleansing, morning and evening. For an amplified glow, apply our Exosome Glow Serum first, then PDRN Serum, then moisturize. Finish your AM routine with SPF. PDRN Serum works well layered with retinol, AHAs, BHAs, and Vitamin C.

WHAT'S THE DIFFERENCE BETWEEN PDRN SERUM AND RETINOL? PDRN and retinol both support skin renewal but work differently. Retinol speeds up cell turnover and targets fine lines and texture - but can cause irritation, especially initially. PDRN works by supporting the skin's own DNA repair and regeneration mechanisms, boosting collagen and hyaluronic acid with very low irritation. They complement each other beautifully - PDRN Serum is safe to use alongside retinol

HOW LONG TO SEE RESULTS? Skin will see an instant glass skin benefit, and longer term results in 4 weeks with consistent use.

IS IT VEGAN? Yes.

WHAT IS THE pH? 4.0 – 4.5

IS PDRN SERUM SAFE DURING PREGNANCY?  Yes - our PDRN Serum is confirmed safe for use during pregnancy and breastfeeding. As always, we recommend patch testing when introducing any new product.

CAN I USE THIS WITH PRESCRIPTION MEDICATION? Consult with your medical professional in advance and patch test.

CAN I USE PDRN SERUM AFTER MICRONEEDLING? PDRN is commonly used in conjunction with microneedling treatments — in fact, PDRN injections are a popular in-clinic procedure. For topical use before or after microneedling, we'd recommend checking with your aesthetician on their specific aftercare protocol, as individual needs vary.

Learn more about What is PDRN in skincare?.

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