What is the K-Pharmacy Universe series?
K-Pharmacy Universe is a content series that guides anyone unfamiliar with Korean pharmacies and their beauty products. From unique items found only in Korea to insider tips known mostly to locals, we share verified information from a Korean perspective.
In previous parts, we introduced the hottest Korean pharmacy skincare products of 2025 and how to use them together to achieve the best results.
[블로그] K-Pharmacy Universe | Part 1: Top 5 Skincare Products at Korean Pharmacies in 2025
[블로그] K-Pharmacy Universe | Part 2: Top Korean Pharmacy Products to Bring Home as Souvenirs
What is PDRN?
PDRN (Polydeoxyribonucleotide) is a regenerative ingredient extracted from salmon DNA. Simply put, it’s a DNA-based component that helps promote cell regeneration.
Why PDRN Is Special
- Boosts cell regeneration: Speeds up the recovery of damaged skin cells
- Stimulates blood vessel growth: Improves nutrient delivery through new capillaries
- Reduces inflammation: Calms skin irritation and inflammatory responses
- Supports collagen synthesis: Helps improve skin elasticity and structure
Clinically Recognized in the Medical Field
PDRN was originally used as a medical injection before gaining popularity in skincare. In Korean dermatology, it has been used for several years to treat:
- Scar treatment: Improves acne scars and post-surgery scars
- Wound recovery: Promotes regeneration after laser procedures
- Skin regeneration: Restores elasticity in aging skin
- Atopic dermatitis care: Repairs and strengthens the damaged skin barrier
Scientifically Proven Benefits of PDRN
Source: Dr.Reju-All
Clinical data shows the effects of PDRN at a concentration of 1,200 ppm. While higher PDRN concentrations do speed up cell recovery, clinical tests on dermal and epidermal wound healing show that anything above 1,300 ppm doesn’t provide additional benefits. In other words, more isn’t always better!
PDRN Checklist - What Truly Matters
Medical-Grade Source is Paramount
The most critical factor in PDRN is the use of medical-grade, high-purity, salmon-derived raw materials. Both the origin and the purification level are the primary determinants of its actual efficacy.
- Optimal Concentration Over Maximum
The ideal effective concentration for PDRN lies between 1,000 and 1,200 ppm. Exceeding this range may diminish absorption efficiency and compromise formulation stability, providing no additional benefits.
- Clinical Validation and Proven Reliability
It is essential to select products formulated with clinically validated PDRN backed by scientific data. Proven reliability and evidence matter far more than just high numerical values.
- Synergetic Formulation
Beyond concentration, the delivery system must be tailored to the skin type. Look for formulations that include synergistic ingredients, such as hyaluronic acid and collagen, which are designed to maximize PDRN’s regenerative potential.
The Perfect PDRN Starter Product: Rejuall
- Proven concentration: 1,200 ppm, the optimal level
- Gel formulation: Suitable for all skin types
- Synergistic ingredients: Includes hyaluronic acid, collagen, and more
- Clinically tested: Scientific data supports its effectiveness
If you want to experience the benefits of PDRN or gift it to someone, Rejuall is a great choice. In just four months after its launch, it sold 250,000 units!
Check out more about the Korean pharmacies below!
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