PDRN in Korean Skincare: What It Is, What It Does and How to Use It

If you have been following the latest Korean skincare launches, you have probably already come across creams, serums, toners and masks featuring PDRN.

This ingredient first gained attention through professional treatments performed in South Korean aesthetic clinics. More recently, it has moved into everyday cosmetics, appearing in formulas designed to support hydration, skin comfort and a plumper, more luminous appearance.

In 2026, PDRN remains one of the most relevant K-Beauty trends, alongside slow ageing, peptides, barrier-supporting formulas and products inspired by professional skincare treatments.

But can a PDRN cream offer the same results as a treatment performed in a clinic? And is it suitable for every skin type?

Let’s separate the trend from the evidence.

What Is PDRN?

PDRN stands for polydeoxyribonucleotide.

Traditionally, it is obtained from purified DNA fragments derived from salmon or trout. In medical and aesthetic settings, PDRN has been studied for its potential role in tissue repair and the modulation of inflammation.

However, the existing research is stronger for medical and professional applications than it is for topical skincare products.

There are now also formulas containing ingredients presented as plant-based alternatives to traditional PDRN. These may be derived from sources such as ginseng, roses or other botanical ingredients.

It is therefore important to check each product’s description, particularly if you prefer vegan cosmetics or avoid ingredients of animal origin.

Why Has PDRN Become So Popular in Korean Skincare?

The growing interest in PDRN is connected to a wider change in how we approach skin ageing.

Instead of using highly aggressive routines with several acids and potentially irritating active ingredients at the same time, Korean skincare is increasingly moving towards the concept of slow ageing.

The aim is to preserve hydration, support the skin barrier and maintain elasticity and resilience over time.

Rather than attempting to “erase” age, slow ageing focuses on keeping the skin healthy, comfortable and able to recover from daily stress.

PDRN fits this trend particularly well because it often appears in formulas that also contain:

• Hyaluronic acid;

• Peptides;

• Niacinamide;

• Ceramides;

• Panthenol;

• Centella asiatica;

• Glutathione;

• Soothing and moisturising ingredients.

The popularity of professional polynucleotide treatments in Korea has also encouraged skincare brands to create cosmetic formulas inspired by that experience.

PDRN can now be found in Korean serums, creams, masks, sunscreens and even haircare products.

What Are the Potential Benefits of PDRN in Skincare?

The results of a skincare product do not depend solely on the presence of PDRN.

They also depend on the concentration used, the molecular size, the delivery system and all the other ingredients included in the formula.

Even so, PDRN skincare products may be interesting for people looking for the following benefits.

1. More Hydration and Comfort

Many PDRN products also contain hyaluronic acid, glycerin and other humectants.

This combination helps the skin retain water and can make it feel more comfortable while creating a visibly plumper appearance.

2. A More Luminous Appearance

When the skin is hydrated and its barrier is functioning properly, its surface tends to look smoother and reflect light more evenly.

This can contribute to the fresh, luminous finish associated with the Korean glass skin look.

3. Support for a Slow-Ageing Routine

PDRN is frequently combined with peptides, niacinamide and antioxidants.

These formulas may gradually help improve the appearance of fine lines, dryness and a lack of radiance.

4. Support for Sensitised Skin

Some PDRN formulas are designed for skin experiencing dryness or discomfort.

However, if your skin is already sensitised, avoid introducing several new active ingredients at the same time.

The priority should still be a simple routine based on gentle cleansing, hydration, barrier support and daily sun protection.

Are Topical PDRN and Injectable Treatments the Same?

No. This is the most important distinction to understand.

Professional treatments introduce polynucleotides into the skin through medical techniques. A cosmetic product is applied topically and remains mainly on the skin’s surface, where it must overcome the skin barrier to reach deeper layers.

Evidence for topically applied PDRN is still limited.

A significant proportion of the available research focuses on medical applications, injectable products or PDRN used alongside professional procedures. The results of these studies cannot automatically be attributed to a serum or face cream.

There are interesting developments involving low-molecular-weight PDRN and new delivery systems, but more independent clinical research into topical cosmetics is still needed.

A cosmetic containing PDRN should therefore be considered part of a consistent hydration and skincare routine. It should not be seen as the equivalent of a medical treatment or as a miraculous skin-regeneration solution.

How to Introduce PDRN into Your Skincare Routine

PDRN can appear at different stages of a skincare routine.

You do not need to use several PDRN products at the same time. Choosing one suitable formula is usually enough.

If You Choose a PDRN Toner

Apply it after cleansing, either with your hands or with a reusable cotton pad, without rubbing the skin.

Follow with your serum and moisturiser. During the day, always finish with sunscreen.

A toner can be a practical option if you are looking for lightweight hydration or enjoy applying several thin layers of skincare.

If You Choose a PDRN Serum or Mist

Apply a serum after toner and before moisturiser.

A facial mist may also be used when the skin feels dry or uncomfortable, provided the complete formula is suitable for your skin.

If You Choose a PDRN Cream

Use it as the final moisturising step in your evening routine.

In the morning, apply the cream before your sunscreen.

Creams combining PDRN, hyaluronic acid and peptides may be particularly interesting for dry or dehydrated skin, or skin experiencing a loss of elasticity.

If You Choose a PDRN Eye Cream

Apply a small amount around the orbital bone without bringing the product too close to the lash line.

You do not need to use very much. An amount approximately the size of one grain of rice is usually enough for both eyes.

Which PDRN Products Can You Find in the 4MyUnnie Selection?

At 4MyUnnie, we select different textures and ingredient combinations so that PDRN can be adapted to the skin’s actual needs.

Selected options include:

• PURITO Oat PDRN Gentle Refining Toner, for those looking for a gentle and hydrating skincare step;

• Medicube PDRN Pink Hyalu Cream, combining the PDRN trend with a moisturising cream texture;

• Medicube PDRN Pink Peptide Eye Cream, developed for the delicate eye area;

• Medicube PDRN Pink Glutathione Serum Mist, a mist-format option focused on hydration and radiance;

• Dr. Althea PDRN Reju 5000, designed to incorporate PDRN into a routine focused on hydration and the overall appearance of the skin. At 4MyUnnie, we mainly use it after professional procedures, including microneedling and other treatments, to support the skin’s recovery and renewal process.

The best choice is not necessarily the product containing the highest number of viral ingredients.

It is the product with a formula and texture that suits the current condition of your skin.

If you have sensitive skin, rosacea, acne or a compromised skin barrier, speak to us before adding several active ingredients to your routine.

Can PDRN Be Combined with Retinol or Vitamin C?

In principle, a PDRN cosmetic can be used in a routine that also includes retinol or vitamin C.

However, you must consider the complete formula rather than assessing PDRN in isolation.

If the PDRN product also contains exfoliating acids or other intensive active ingredients, combining it with retinol or a strong vitamin C product may increase the risk of irritation.

A simple approach could look like this:

Morning: gentle cleanser, vitamin C or a hydrating serum, moisturiser and sunscreen.

Evening: cleanser, PDRN product, moisturiser and retinol on alternate evenings, according to your skin’s tolerance.

Avoid introducing every product during the same week.

If irritation or another reaction occurs, introducing products gradually makes it much easier to identify the cause.

Who Should Be More Careful When Using PDRN?

Perform a patch test before use if you have highly reactive skin or a history of fish allergies.

During pregnancy or breastfeeding, check the complete ingredient list with the healthcare professional supporting you.

PDRN should not be assessed in isolation, as the product may contain other active ingredients that require additional consideration.

If you have a diagnosed skin condition, persistent inflammation or a severe reaction, seek advice from a dermatologist.

Is PDRN Worth Trying?

PDRN is one of the most interesting trends in Korean skincare, but it should be approached with realistic expectations.

In a well-formulated cosmetic, it can be part of a good hydration, skin-comfort and slow-ageing routine.

However, most of the available clinical evidence does not demonstrate that a topical cream can produce the same effects as a professional treatment.

The true value of a PDRN product lies in the complete formula, consistent use and how well it responds to the needs of your skin.

If you are unsure which product to choose, 4MyUnnie can help you understand where PDRN fits into your routine without adding unnecessary steps or buying products you do not need.

Frequently Asked Questions About PDRN

Is PDRN Salmon DNA?

Traditional PDRN can be produced from purified DNA fragments derived from salmon or trout.

Plant-based alternatives are also available, but the origin should always be confirmed through the information provided by the brand.

Is PDRN Vegan?

Not always.

If you follow a vegan skincare routine, check the origin of the PDRN declared by the brand before purchasing the product.

Can I Use PDRN Every Day?

It depends on the complete formula.

A hydrating PDRN toner, serum or moisturiser can generally be used daily if your skin tolerates it. Always follow the product’s instructions.

Does PDRN Remove Wrinkles?

No cosmetic can remove wrinkles.

A hydrating formula may make dehydration lines appear less visible and improve the skin’s overall appearance, but results vary from person to person.

Do I Need a Ten-Step Korean Skincare Routine?

No.

An effective routine can consist of a cleanser, one appropriate treatment product, a moisturiser and sunscreen.

Using more products does not necessarily lead to better results.

Would you like to try PDRN but are not sure which product to choose?

Speak to 4MyUnnie for personalised advice based on your skin type, sensitivity and current routine.