PDRN: The Korean Salmon DNA Ritual and Its Science

August 15 2026, 4 min reading time

PDRN is an ingredient found in Korean cosmetics and studied in contexts of tissue repair. Discover what it is, how it's used, and what the evidence says.

PDRN is an ingredient that is gaining interest due to the research surrounding it. Also known as polydeoxyribonucleotide and popularly associated with salmon DNA, it is used in medical and aesthetic contexts and has also made its way into Korean cosmetics.

What is PDRN?

These acronyms stand for polydeoxyribonucleotide: fragments of purified DNA that, depending on the formulation, can be obtained from sources such as salmon or trout. It has been especially studied in regenerative medicine and tissue repair; in facial cosmetics, it appears in serums and other skin care products.

What the scientific evidence says

Research on PDRN has examined mechanisms related to the activation of adenosine A2A receptors and the nucleotide salvage pathway. In preclinical and clinical studies of tissue repair, these mechanisms have been linked to healing, inflammation, and regeneration processes. However, these findings should not be automatically extrapolated to all topical cosmetic serums.

Most of the available evidence has been obtained in clinical, injectable, or post-procedure recovery contexts. In aesthetics, available reviews point to promising results in texture, elasticity, and the appearance of fine lines, but also note small sample sizes, variability in formulations, and the need for higher quality studies.

In serum format, the realistic goal is to complement a moisturizing and facial care routine. The experience may depend on the concentration, molecular size, complete formula, and consistency of use. It should not be considered a substitute for medical treatments or procedures performed by qualified professionals.

How to incorporate it into your routine

Incorporating PDRN into your routine can be a simple step: after cleansing and, if used, toner, apply a few drops of Derma Factory Salmon DNA PDRN Serum to your face and gently press before finishing with your moisturizer. Always follow the usage instructions indicated by the brand. If you prefer a formula that combines PDRN with other regenerating active ingredients like CICA, the CICA Reedle Shot 100 Ampoule from VT Cosmetics is another option within our VT Cosmetics collection.

Within a simple routine, this type of serum can be used before moisturizer. Maintaining a brief and consistent sequence is often more useful than accumulating products without considering skin tolerance.

If you introduce a new product, do so one at a time and perform a patch test when appropriate. Discontinue use if you notice irritation or an unexpected reaction, and consult a dermatologist if you have an ongoing skin condition or dermatological treatment.

What it can be combined with

A serum with PDRN can be integrated into a routine that includes moisturizing or barrier-supporting ingredients, such as glycerin, ceramides, or niacinamide, provided the formula is well tolerated. If you use exfoliating acids, retinoids, or other intensive active ingredients, introduce them gradually and review the indications for each product.

When combining products, prioritize formulas you are familiar with and avoid starting several intensive active ingredients at the same time. This will make it easier to identify which elements best suit your skin.

Who might it be suitable for?

It may be of interest to those seeking a facial care routine focused on hydration, comfort, and a Korean-inspired cosmetic experience. It is not essential for a good routine: gentle cleansing, moisturizer, and sunscreen during the day still form a practical basis for many people.

This type of routine can be adapted to different texture preferences and number of steps. The important thing is to follow the usage guidelines for each product and observe how the skin responds over the weeks.

Frequently Asked Questions

Is the PDRN in a serum the same as an injectable treatment?
No. Although they may share a name or family of ingredients, the application method, concentration, formulation, and scope are different. A serum is a cosmetic product for external use, not a medical procedure.

Can it be used daily?
It depends on the instructions for the specific formula and your tolerance. If the manufacturer indicates daily use and the skin tolerates it, it can be incorporated into the routine following their recommendations.

Is it suitable for sensitive skin?
Tolerance depends on the complete formula and each individual. Review the INCI, introduce the product gradually, and perform a patch test if your skin reacts easily.

In summary

PDRN has a research base especially related to tissue repair and clinical procedures. In topical cosmetics, it can be an interesting alternative within a facial care routine, always with realistic expectations and considering the complete formula. If you want to explore it, the Salmon DNA PDRN Serum can be incorporated into your skincare ritual within our exclusive Korean skincare collection.