Hot Beauty Keyword – PDRN (Part II)
As PDRN skincare products (especially serum) are getting a solid reputation, people are seeking the next step to add to their skincare routine. This ‘PDRN’ trend amplified the popularity in K-beauty, resulting in made a ‘PDRN (Repair) Cream‘ as a rising star for an anti-aging, skin boosting solution – I may say it’s #1 item in K-beauty market right now even only available from Korean Pharmacies.
📝Quick Check!
🧬PDRN (Polydeoxyribonucleotide) vs PN (Polynucleotide)
PDRN and PN are both DNA fragments from salmon used for skin rejuvenation.
• PDRN is a low-molecular-weight DNA fragment and its molecular structure is similar to human DNA, allowing it to interact with skin cells easily(cell repair, skin regeneration), promotes collagen production, and helps reduce inflammation.
• PN (Polynucleotide) refers to longer DNA chains with higher molecular weight and provides more intense and prolonged effects for overall skin health, elasticity, and hydration, suitable for deeper injections.

🧬Have you heard about Rejuran?
Rejuran is a South Korean injectable skin treatment (skin booster) that uses salmon-derived polynucleotides (PN) to stimulate the skin’s natural regeneration processes, promoting collagen production and enhancing hydration.
Korean pharmaceutical company PharmaResearch registered and released REJURAN ® using patent DNA Optimizing Technology (DOT® c-PDRN) which involves extracting DNA from salmon germ cells and optimizing it for use as a regenerative material. It’s well-known REJURAN, both popular in skincare products and dermatology treatments: skinbooster injection.

(Rejuran skincare products are a lot to talk so i will try to post next time, comparing ‘the best & new release’ items all together^^)
🧬Top 4 PDRN Cream By K-Pharmacy
- Rejuvenex® Cream (The original, Best Healing )
This cream is manufactured from PharmaResearch, it has a fame as the #1 repair cream so I couldn’t purchase anywhere in Korea as well as inconsistency of supply – general product description only😢

• Concentrated formula (ointment type) is good for spot/ small area – especially for post-laser treatment and wounded, inflamed skin healing
• Contains Sodium Polydeoxyribonucleotide (0.8mg)
• Efficacy: Diseases prone to ulcers due to malnutrition of the skin and connective tissue: wounds, nutritional supplementation
• 10g/ ₩40,000 (won)
🤔 in my opinion: bit pricey and ointment texture, also contains parabens (Methylparaben & Propylparaben) as a preservatives (don’t know it will be my favorite?^^; but lots of people say fast healing)
- Rejuall Advanced PDRN Rejuvenating Cream (Optimal Formula)
Originally Dr. Rejuall Advanced PDRN Relief Cream and its package/title has been changed as a Rejuall Advanced PDRN Rejuvenating Cream.

• A lightweight moisturizing gel with 4 times fast absorption compared to cream formula
• 1,200ppm of high-purity Salmon PDRN with 2% Niacinamide and 1% Panthenol for skin-brightening and support skin barrier function
• 20,000ppm of low molecular Hydrolysed Collagen with Adenosine and Hyaluronic Acid deliver deep hydration and improve skin elasticity
• Anti-inflammatory, Soothing benefits with Allantoin and Arginine
• PDRN( Polydeoxyribonucleotide) 1,200ppm/20g (₩45,000 korean won)
🤔 in my opinion: It applies smoothly and gentle enough for even sensitive skin conditions. Non-sticky texture with fast-absorbing formula – suitable for daily moisturizer yet recommends for night for comforting and skin-regenerating benefits
✍️ 1200ppm optimal PDRN content based on clinical results: outer skin (Epidermis) reacts and penetrate effectively with PDRN content 10ppm, and comparatively 5 ppm on Dermis.

🤔 Well, it’s still confusing to me however topical PDRN may not effectively penetrate to the dermis due to its large molecular size so understandable – certainly optimized for the best😝
✍️ Contains fragrance so if you have a sensitive skin, be aware of this.
🧬The Best PDRN Content
The best PDRN content for effectiveness is debated, but concentrations of 10,000 ppm (1%) or higher are generally considered effective for visible results, such as promoting tissue repair and collagen synthesis.
Some clinical trials show that PDRN can be effective and well-tolerated in a 0.5–2% (or 5,000 ppm) range for topical applications, and excessive amounts can lead to skin irritation and reduced effectiveness.
cf. 100 ug/ml = 0.01 % = 100 ppm
3. Rejuveon PDRN 1000 Plus Cream (Popular as Rejuall)

• Great for skin cell repair and helps improve skin tone & firmness
• Contains PDRN 1000ppm with Niacinamide and Adenosine
• Infused with Centella Asiatica Extract for soothing benefits
• Absorbs quickly and non-irritating formula suitable for sensitive skin
• 20g/₩30,000~40,000 won
🤔 It has an ointment-like cream texture yet spreads easily with non-sticky residue. Ideal for small, desired areas and night timer for skin-repair, regenerating benefits. (need more time to figure out as my skin doesn’t have breakout nor irritation)
- Deepair PDRN Recovery Cream (Rising Star, The Highest PDRN)

• Co-developed with KPAI (The Korean Pharmaceutical Association)
• PDRN 5,000 PPM with Niacinamide and Adenosine
• Moisturizing formula with support skin elasticity
• Free of artificial colorants & harmful ingredients
• 50ml/₩45,000~50,000 won
🤔 It’s a very hydrating formula and applied under makeup – so far so good, helps to create glow-looking skin and doesn’t disturb my makeup.
✍️ Contains Shea Butter that is beneficial for deep moisturizing and strengthening skin barrier. It’s non-comedogenic and doesn’t clog pores but recommended for dry, normal skin, it also contains fragrance.
🧬Conclusion
PDRN has multiple benefits for skin health, especially for those who have mature skin like me – getting dull, lack of hydration & elasticity, visible fine lines and also tired, uneven, damaged skin.
☛PDRN Benefits
• Visible skin regeneration
• Promotes collagen synthesis
• Reduce skin inflammation
• Boosts microcirculation
• Reduce Hyperpigmentation

☛There is not much information revealed about product details on each product/company website and was able to get this one from Dr. Rejuall site for your reference. As you can see it shows visible skin condition improvement such as redness, pigmentation and pores along with fine lines & overall skin tone/radiance.

PDRN (as a skincare ingredient) is registered as a ‘Sodium DNA’ by INCI(International Nomenclature of Cosmetic Ingredients) so look up this term on the package and also most studies are shown their efficacy on salmon DNA fragments, not plant-based nor ginseng-derived PDRN : there are a few proving the efficacy of botanical PDRN and ginseng-derived PDRN shown to support skin regeneration and barrier function, but which is my choice today? Like above, pharmacy-based, salmon-derived PDRN skincare products. YES! They are worth it and my choice so far is Rejuall, maybe Deepair?😝

Thanks for reading – even it’s bit long article~

Some articles and images used from Google as well as Rejuall official site.


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