What Is PDRN and How Does It Work in Skincare (2026)

PDRN is appearing in hydrogel masks, overnight serums, and K-beauty launches at a rapid pace. For anyone building a routine around clean, intentional ingredients, it is worth understanding what it actually is before deciding whether it belongs in yours.

This guide covers what PDRN is, where it comes from, what skin tends to look and feel like with consistent use, and how to layer it into a routine, including what Rael uses it for and why.

What Is PDRN?

PDRN stands for polydeoxyribonucleotide. It is a DNA-derived ingredient extracted from salmon or trout, purified and processed for topical use in skincare.

Before it appeared in any consumer product, PDRN had a documented history in clinical settings, where it was studied in wound care and dermatological research. Korean beauty brands, which have a long history of drawing ingredient inspiration from medical aesthetics, were among the first to bring it into topical skincare. It is now a recognized ingredient in K-beauty formulation, appearing alongside peptides, growth factors, and fermented extracts.

Why Is PDRN Used in Skincare?

PDRN is used in skincare formulations because it is generally well tolerated and has been studied in dermatological research. It tends to be well-tolerated across skin types.

PDRN has been studied in dermatological research in relation to how skin looks and feels, including texture, hydration, and the appearance of redness..

What Does Skin Tend to Look and Feel Like With Consistent PDRN Use?

The following reflects what current skincare research links to PDRN use over time. Topical formulas work at the skin's surface layers. Results develop with consistent use rather than after a single application, and individual experience varies.

• Skin that looks smoother and more even in texture: With regular use over 8 to 12 weeks, skin may look smoother and more even in texture.

• Skin that looks more hydrated and feels more comfortable: With continued use, skin may look more hydrated and feel softer.

• A complexion that looks calmer and more balanced: Skin may look calmer and more balanced with consistent use, particularly for those whose complexion shifts throughout the month.

• Skin that looks more refreshed over time: With consistent topical use, skin may look more refreshed, particularly after periods of environmental exposure.

One important distinction: injectable forms of PDRN work at a different depth than topical products. Topical PDRN is formulated for use on the skin's surface and outermost layers. Topical and injectable outcomes are not the same, and it is worth being clear about that going in.

How PDRN Compares to Other Skincare Ingredients

The table below covers how PDRN differs from other common actives in format and use case, not in performance ranking.

Which Skin Situations Tend to Benefit Most From PDRN?

PDRN's gentle, well-tolerated profile makes it broadly compatible. A few skin situations tend to see the most visible benefit.

• Skin that looks and feels different throughout the month: For those whose skin appears clearer in some cycle phases and more reactive or uneven in others, a consistent PDRN step may help support the appearance of a more balanced-looking complexion over time. Rael's skincare is designed around this: cycle-aware formulas built for how skin actually behaves across the month, not just on one neutral day.

• Skin that looks dull or dehydrated: When skin does not look as hydrated as it could, it can appear flat and less luminous. With a consistent PDRN step, skin may look more hydrated, particularly when layered with hyaluronic acid.

• Skin that looks reactive to other actives: Because PDRN is generally well-tolerated, it can be a practical option on evenings when more reactive actives are skipped.

How to Add PDRN to a Routine

The right approach depends on format. Here is how each is used.

Using a PDRN serum: Apply after cleansing and toning, before moisturizer. PDRN pairs well with niacinamide, hyaluronic acid, and peptides. In an evening routine that includes retinol, apply PDRN first. Avoid using PDRN and AHAs, BHAs, or benzoyl peroxide in the same session.

Using a PDRN mask: Apply after cleansing and toning, allow the mask to work for the recommended time, then pat in any remaining essence before moisturizer. One to three times per week works for most skin types. Evening use allows the formula to work without interruption, though a gentle formulation can be used at any time of day.

Starting with PDRN for the first time: Patch test first, then begin once a week and build frequency based on how skin responds. For skin that tends to look more reactive during certain cycle phases, two to three sessions per week may be appropriate once patch testing is complete.

Rael's PDRN Formulas

Rael approaches skincare the same way it approaches cycle care: clean ingredients, intentional formulation, and products designed around how skin actually changes throughout the month.

Collagen + PDRN Hydrogel Mask

This mask combines four key ingredients, each associated with a different visible outcome. For a closer look at how the hydrogel format compares to other mask types, Rael's guide covers the full picture.

Based on a 2-week clinical study of 43 participants ages 20 to 59, the mask showed +98% improvement in skin moisture levels, +34% improvement in the appearance of radiance, and +19% improvement in the look of elasticity after one use. Individual results may vary. The mask is fragrance-free, and suitable for all skin types including sensitive skin.

To use: apply after cleansing and toning. Separate the mask into top and bottom halves and place the embossed side down on skin. Leave on for 30 to 60 minutes or until the mask turns translucent, then pat in remaining essence and follow with Rael's Miracle Clear Barrier Cream. The embossed anti-slip design holds the mask in place while moving.

Microcrystal Activated PM Serum 5000

For overnight use, the PM Serum 5000 features Cica PDRN and copper peptide. It uses microcrystal technology designed to support application of actives at the skin's surface. Works well used one to three times per week in an evening routine.

Ready to Try PDRN?

If PDRN sounds like the right fit for your routine, Rael's Collagen + PDRN Hydrogel Mask is a straightforward place to start. It is dermatologist-tested, fragrance-free, and formulated with four complementary ingredients in one formula. Shop the mask and explore Rael's full skincare range at getrael.com.

Frequently Asked Questions

What does PDRN stand for?

Polydeoxyribonucleotide, a DNA-derived ingredient extracted from salmon or trout and purified for topical skincare use.

How is PDRN different from collagen in skincare?

Hydrolyzed collagen is associated with the look of plumpness and firmness. PDRN is associated with a refreshed-looking, more even-textured complexion over time. Rael's Collagen + PDRN Hydrogel Mask combines both.

Can PDRN and retinol be used in the same routine?

Yes. Apply PDRN first, then retinol. On evenings when skin looks or feels more reactive, PDRN alone is a practical option.

How long before skin looks different with consistent PDRN use?

Improvements in the appearance of hydration and texture may become noticeable within a few weeks. The look of firmness and evenness tends to develop over 8 to 12 weeks.

Is PDRN vegan?

Skincare-grade PDRN is traditionally marine-derived. Rael uses Salmon PDRN in its formulations. Plant-based alternatives exist but carry significantly less published research.

What is the difference between PDRN and PN (polynucleotides)?

Both are DNA-derived fragments. PN refers to longer chains; PDRN refers to shorter ones. The terms are sometimes used interchangeably in consumer skincare contexts.

How often should a PDRN mask be used?

One to three times per week works for most skin types. For more guidance on mask frequency by skin type and formula, Rael's face mask frequency guide covers it in full.

Does Rael have PDRN skincare products?

Yes. The Collagen + PDRN Hydrogel Mask and the Microcrystal Activated PM Serum 5000 both feature PDRN as a key ingredient. Both are fragrance-free and formulated for sensitive skin.