PDRN — short for polydeoxyribonucleotide, often marketed as salmon DNA — has moved from niche dermatological clinics to mainstream skincare shelves. For private label brands and beauty distributors, understanding this ingredient is no longer optional: consumers are actively searching for it, and manufacturers are increasingly adding it to serums, eye patches, and facial treatments. This guide breaks down the science behind PDRN, its regulatory status in major markets, ideal concentration ranges, and which ingredients it pairs with — so you can make informed sourcing and formulation decisions for your brand.
PDRN stands for polydeoxyribonucleotide, a biological molecule derived from DNA — specifically, from the sperm or reproductive tissue of salmon (Oncorhynchus keta). The "salmon DNA" label you see on product packaging refers to this origin. The DNA is purified, fragmented into specific nucleotide chain lengths, and sterilized before being incorporated into cosmetic or pharmaceutical formulations.
The reason salmon DNA is used rather than DNA from other sources comes down to molecular compatibility. Salmon DNA shares a high degree of structural similarity with human DNA in terms of nucleotide composition, which is why researchers and formulators believe it may support skin tissue repair processes. In cosmetic language, this is typically described as "supporting skin recovery," "promoting a healthy skin environment," or "nourishing the skin barrier" — all carefully worded to stay within cosmetic regulatory boundaries.
PDRN is available in several grades. Pharmaceutical-grade PDRN is used in injectable treatments and wound care products, subject to strict regulatory approval. Cosmetic-grade PDRN, the type used in over-the-counter skincare products like the Collagen & PDRN Eye Mug Patch from Lanthome, is formulated for topical application and meets cosmetic safety standards. The distinction matters: brands must ensure their supplier provides the correct grade for their intended use and market.
It is worth noting that PDRN is sometimes confused with PN (polynucleotide), a related molecule with longer nucleotide chains. While both are DNA-derived and used in skincare and aesthetic medicine, PDRN is the shorter-chain variant more commonly found in topical cosmetic products. Brands should clarify exactly which molecule their supplier is providing, as labeling and marketing claims may differ.
Understanding how PDRN functions in topical skincare requires separating established biological mechanisms from cosmetic marketing language. The scientific literature on PDRN primarily comes from medical and dermatological research, where it has been studied for wound healing and tissue regeneration applications.
At the cellular level, PDRN is believed to act through several pathways. First, it may serve as a source of nucleotides — the building blocks of DNA — that cells can utilize during periods of increased turnover or repair. Skin cells undergoing natural renewal, or skin recovering from environmental stress, have an increased demand for nucleotides, and PDRN may help meet that demand.
Second, PDRN has been studied for its potential to interact with adenosine A2A receptors, which are involved in inflammatory response regulation and tissue repair processes. In cosmetic terms, this translates to language about "soothing," "calming," or "supporting skin comfort" — claims that are permissible within cosmetic regulations as long as they do not imply treatment of a medical condition.
Third, PDRN may support fibroblast activity. Fibroblasts are the skin cells responsible for producing collagen, elastin, and other structural proteins that maintain skin firmness and elasticity. Research in medical contexts has suggested PDRN may promote fibroblast proliferation, which in cosmetic language becomes "supporting skin firmness" or "helping maintain skin elasticity."
For eye care products specifically — such as PDRN-infused under-eye patches — these mechanisms are marketed around the unique needs of the periocular area. The skin around the eyes is thinner, more delicate, and more prone to showing signs of fatigue, stress, and aging. A PDRN collagen eye patch combines PDRN with collagen and complementary ingredients like caffeine, niacinamide, and hyaluronic acid to address multiple periocular concerns — puffiness, dullness, dryness, and loss of firmness — in a single-use, hygienic format.
It is important for brands to communicate PDRN benefits using conservative, cosmetic-appropriate language. Claims like "repairs DNA," "reverses aging," or "stimulates collagen production" may cross into drug claims in regulated markets. Safer alternatives include "supports skin's natural renewal process," "helps maintain skin elasticity," and "nourishes for a firmer-looking appearance."
The skincare market is crowded with ingredients that claim similar benefits. Understanding how PDRN differs from its closest competitors helps brands position products effectively and avoid me-too formulations.
PDRN vs. Collagen. Collagen is a structural protein that, when applied topically, primarily functions as a humectant and film-forming agent — it draws moisture to the skin and creates a temporary plumping effect. PDRN, by contrast, is a nucleotide-based ingredient believed to work at the cellular level to support skin renewal processes. In practice, the two are highly complementary: collagen provides immediate hydration and smoothing, while PDRN supports longer-term skin health. This is why many formulations — including the Lanthome PDRN eye patch — combine both ingredients.
PDRN vs. Peptides. Peptides are short chains of amino acids that signal skin cells to perform specific functions, such as producing more collagen. PDRN is a chain of nucleotides (DNA building blocks), not amino acids. While both are "biologically active" ingredients with scientific backing, their mechanisms and ideal use cases differ. Peptides tend to be more targeted (e.g., signal peptides, carrier peptides, neurotransmitter-inhibiting peptides), while PDRN has a broader, more foundational role in supporting skin tissue environment.
PDRN vs. Growth Factors. Growth factors are signaling proteins that regulate cell growth, proliferation, and differentiation. They are among the most potent — and most regulated — ingredients in skincare. PDRN is sometimes grouped with growth factors in marketing language, but it is a distinct molecule class (nucleotides vs. proteins) and generally faces fewer regulatory restrictions in cosmetic formulations. Brands should be careful not to imply PDRN is a growth factor or has equivalent potency, as this could attract regulatory scrutiny.
PDRN vs. Centella Asiatica (Cica). Cica is a plant-derived ingredient widely used for its soothing and barrier-supporting properties. While both PDRN and cica are marketed around skin recovery and comfort, PDRN has a more science-forward, clinical positioning that commands a higher price point. Cica is mainstream and well-understood by consumers; PDRN is newer and requires more consumer education. Brands can use cica as an accessible entry ingredient and PDRN as a premium, science-forward differentiator.
For private label brands, the key positioning opportunity for PDRN lies in its "clinical-meets-cosmetic" profile. It has enough scientific credibility to appeal to ingredient-conscious consumers, yet it is available in cosmetic-grade formulations that avoid the regulatory hurdles of pharmaceutical products. This makes it ideal for premium skincare lines targeting consumers who want "professional-grade" results at home.
Regulatory compliance is one of the most critical — and most often overlooked — aspects of formulating with PDRN. The regulatory status of PDRN varies significantly by market, and brands must understand the requirements for each region they sell into.
United States (FDA). In the US, cosmetics are regulated under the Federal Food, Drug, and Cosmetic Act. PDRN used in topical cosmetic products is generally permissible as a cosmetic ingredient, provided it is safe for its intended use and the product does not make drug claims. The key risk area is claims: if a product states or implies that PDRN "treats," "cures," "prevents," or "diagnoses" a disease or medical condition (including aging as a medical condition), the FDA may classify the product as a drug, requiring a different approval pathway. Brands must use cosmetic language — "supports," "helps maintain," "improves the appearance of" — rather than medical language — "repairs," "heals," "treats," "clinically proven to regenerate."
Under the Modernization of Cosmetics Regulation Act (MoCRA) of 2022, cosmetic facilities must register with the FDA, list their products, and ensure good manufacturing practices. Brands sourcing PDRN products from OEM cosmetic manufacturers should confirm that the manufacturer meets these requirements and can provide the necessary documentation.
European Union (EU Cosmetics Regulation). The EU has one of the world's most stringent cosmetic regulatory frameworks under Regulation (EC) No 1223/2009. PDRN must be assessed for safety by a qualified safety assessor, and the product must have a Cosmetic Product Safety Report (CPSR) before being placed on the EU market. The product must also be notified through the Cosmetic Products Notification Portal (CPNP) and have a designated Responsible Person based in the EU.
PDRN is not currently on the EU's list of prohibited or restricted cosmetic ingredients, but its animal origin (salmon) means it may be subject to additional scrutiny under the EU's rules on animal-derived ingredients. Brands should ensure their supplier can provide documentation on the sourcing, purification, and safety testing of the PDRN used in their products.
China (NMPA). China's National Medical Products Administration (NMPA) regulates cosmetics under the Regulations on Supervision and Administration of Cosmetics (effective 2021). PDRN-containing cosmetics imported into China require product registration (for special cosmetics) or filing (for general cosmetics). Animal-derived ingredients may require additional documentation, including quarantine and inspection certificates. Brands selling into China should work with a local regulatory consultant or their manufacturer's regulatory team to ensure compliance.
Key compliance takeaway. Regardless of market, the safest approach is to (1) use cosmetic-grade PDRN from a reputable supplier with full documentation, (2) formulate at concentrations consistent with existing cosmetic products, (3) use conservative, cosmetic-appropriate marketing language, and (4) ensure the manufacturer follows GMP and can provide safety test reports. Brands should consult with regulatory counsel for each market they plan to enter.
One of the most common questions from private label brands is: how much PDRN should be in a product? The answer depends on the product type, format, and intended market positioning.
In pharmaceutical injectable formulations, PDRN concentrations are precisely defined and measured in milligrams per milliliter. In topical cosmetic products, concentrations are typically much lower and are often expressed as a percentage of the total formula. Cosmetic PDRN products on the market generally contain between 0.001% and 0.1% PDRN, though some premium formulations may go higher.
Several factors influence the ideal concentration:
Product format. Leave-on products (serums, creams, eye patches) can typically use higher concentrations than rinse-off products (cleansers, masks that are washed off), because the ingredient has more time to interact with the skin. The Lanthome PDRN eye patch is a leave-on treatment — the patch is applied for 15–20 minutes, allowing the essence to infuse into the periocular skin — making it an effective delivery format for PDRN.
Complementary ingredients. PDRN is rarely used as a standalone active. It is most effective when combined with ingredients that support its benefits. In eye care, common pairings include collagen (for structural support and hydration), hyaluronic acid (for deep moisture), caffeine (for reducing the appearance of puffiness), and niacinamide (for brightening and barrier support). The Lanthome PDRN eye patch incorporates all of these, creating a multi-benefit formula that addresses several periocular concerns simultaneously.
pH and stability. PDRN is a biological molecule, which means it can be sensitive to extreme pH, high temperatures, and certain preservative systems. Formulators must ensure the product's pH is within a compatible range (typically near neutral for DNA-based ingredients) and that the manufacturing process avoids excessive heat exposure. Stability testing should confirm that PDRN remains active throughout the product's shelf life.
Preservation. Any water-based cosmetic product containing a biological ingredient like PDRN requires an effective preservative system to prevent microbial contamination. The preservative must be compatible with PDRN and not degrade the ingredient. Common cosmetic preservatives like phenoxyethanol, ethylhexylglycerin, and caprylyl glycol are generally compatible, but formulation testing is essential.
Packaging. For single-use products like eye patches, individual sachet packaging provides several advantages: it ensures hygiene (each pair is sealed until use), preserves ingredient stability (no repeated exposure to air or contaminants), and is convenient for travel or on-the-go use. The Lanthome PDRN eye patch comes in individual sachets (1 pair per sachet, 8 pairs per box), which is an ideal packaging format for a PDRN-based treatment.
For brands evaluating PDRN formulations, the recommendation is to start with a concentration that is well-established in existing cosmetic products, work with an experienced manufacturer on formulation and stability testing, and position the product at a price point that reflects the ingredient's premium positioning while remaining accessible to target consumers.
PDRN's effectiveness in cosmetic formulations is enhanced when it is combined with complementary ingredients that address different aspects of skin health. Understanding these synergies helps brands create multi-benefit products that deliver comprehensive results.
Collagen. As discussed earlier, collagen and PDRN are natural partners. Topical collagen provides immediate hydration and creates a smoothing, plumping effect on the skin surface. PDRN supports the skin's natural renewal processes from within. Together, they offer both immediate and longer-term benefits. In eye patches, this combination is particularly effective: collagen hydrates and smooths the delicate under-eye area, while PDRN supports skin firmness and resilience.
Hyaluronic Acid. Hyaluronic acid is a powerhouse humectant that can hold up to 1,000 times its weight in water. It provides deep, long-lasting hydration and helps plump the appearance of fine lines. PDRN and hyaluronic acid work at different levels — hyaluronic acid primarily hydrates the outer layers of skin, while PDRN supports cellular-level processes. In eye care, this combination addresses both dryness and the appearance of fatigue-related fine lines.
Caffeine. Caffeine is a well-known ingredient in eye care for its ability to reduce the appearance of puffiness and dark circles. It works by constricting blood vessels (reducing under-eye pooling that causes dark circles) and stimulating microcirculation. PDRN supports skin health and firmness, while caffeine provides immediate visible benefits for tired-looking eyes. The combination is ideal for morning-use eye patches that target overnight puffiness and dullness.
Niacinamide (Vitamin B3). Niacinamide is a versatile ingredient that supports the skin barrier, helps even skin tone, and regulates sebum production. In eye care, it helps brighten the appearance of dark circles and supports the delicate periocular skin barrier. PDRN and niacinamide are compatible and complementary: PDRN supports renewal and firmness, niacinamide supports barrier health and brightness.
Peptides. Certain peptides can be combined with PDRN for enhanced firming and smoothing benefits. Signal peptides (like palmitoyl tripeptide-1) may support collagen production, while carrier peptides (like copper peptide) support wound healing processes. Brands should be cautious with peptide selection, as some peptides may have regulatory considerations in certain markets. When formulating with both PDRN and peptides, stability testing is essential to ensure both ingredients remain active.
Centella Asiatica (Cica). Cica is a soothing ingredient that supports skin barrier recovery and reduces the appearance of redness and irritation. It pairs well with PDRN in products designed for sensitive or stressed skin. The combination of PDRN's renewal support and cica's soothing properties creates a gentle yet effective formula suitable for delicate skin areas like the eye contour.
Ingredients to use with caution. While PDRN is generally compatible with most cosmetic ingredients, brands should be cautious with: (1) high concentrations of exfoliating acids (AHAs/BHAs) that may lower pH below PDRN's stable range, (2) strong oxidizing agents that may degrade DNA-based ingredients, and (3) certain preservatives that may interact with biological molecules. Formulation testing with the specific ingredient combination is always recommended.
For the Lanthome PDRN collagen eye patch, the ingredient combination — PDRN + collagen + caffeine + niacinamide + hyaluronic acid — is thoughtfully designed to address the full spectrum of periocular concerns: puffiness (caffeine), dullness (niacinamide), dryness (hyaluronic acid), loss of firmness (PDRN + collagen), and rough texture (softening and moisturizing benefits). This multi-ingredient approach makes the product versatile and appealing to a broad range of consumers.
The quality of PDRN in your product depends entirely on the manufacturer and supplier. Not all PDRN is created equal, and choosing the right manufacturing partner is critical for product safety, efficacy, and regulatory compliance.
Key evaluation criteria for PDRN manufacturers:
1. Ingredient sourcing and traceability. The manufacturer should be able to provide full documentation on the source of the PDRN (salmon species, country of origin), the extraction and purification process, and any third-party testing certificates. Because PDRN is animal-derived, traceability is especially important for markets with strict animal ingredient regulations (such as the EU and China).
2. Grade and purity. Confirm that the manufacturer uses cosmetic-grade PDRN appropriate for topical products, not pharmaceutical-grade intended for injection (which may be subject to different regulations and may be unnecessarily expensive). The PDRN should have a certificate of analysis (COA) confirming purity, concentration, and absence of contaminants.
3. Manufacturing certifications. Look for manufacturers with GMP (Good Manufacturing Practices) certification, ISO quality management systems, and relevant national cosmetics production licenses. These certifications indicate that the facility follows standardized quality processes and can provide the documentation required for regulatory compliance. The Lanthome manufacturing facility, for example, operates with national cosmetics production certification and serves brands in over 150 countries.
4. Formulation expertise. PDRN is a specialized ingredient that requires formulation expertise to ensure stability, compatibility, and effective delivery. A manufacturer with an in-house R&D team can help optimize the formulation, conduct stability testing, and troubleshoot any issues that arise during product development.
5. Packaging capabilities. For PDRN eye patches, the manufacturer should offer individual sachet packaging with reliable sealing to preserve ingredient stability and hygiene. In-house packaging capabilities reduce lead times and quality risks compared to outsourced packaging.
6. MOQ and pricing flexibility. Understand the minimum order quantities for stock formulations versus custom formulations, and whether tiered pricing is available for larger orders. PDRN is a premium ingredient, so unit costs will be higher than basic skincare products. However, economies of scale can significantly improve margins at higher volumes.
7. Regulatory support. The manufacturer should be able to provide product documentation including ingredient lists (INCI), safety data sheets (SDS), stability test reports, and certificates of analysis. They should also have experience with regulatory requirements for your target markets.
8. Sample and prototype process. Before committing to a full production run, request product samples to evaluate texture, scent, application feel, packaging quality, and overall product experience. Testing samples allows you to verify that the product meets your specifications before placing a larger order.
Red flags to watch for: manufacturers who cannot provide COA or sourcing documentation for PDRN; prices significantly below market rate (may indicate lower-grade or adulterated ingredient); refusal to provide samples or minimum order quantities that are unreasonably high; lack of transparent communication about manufacturing processes or ingredient specifications; manufacturers who make medical claims about PDRN products (a sign they may not understand cosmetic regulatory boundaries).
For brands exploring skin care product collections that include PDRN, working with an established manufacturer that offers both stock and custom formulations provides flexibility — you can start with a proven stock formula to test the market, then develop custom formulations as your brand grows.
PDRN is a compelling ingredient for private label brands looking to enter the premium, science-forward skincare segment. Here is a summary of the key considerations:
Opportunities: PDRN has strong scientific credibility and a growing consumer awareness, particularly in the K-beauty and clinical skincare segments. The ingredient is versatile and can be formulated into serums, creams, eye patches, masks, and other treatment formats. PDRN pairs effectively with collagen, hyaluronic acid, caffeine, niacinamide, and other popular skincare ingredients, enabling multi-benefit formulations. Eye care is a particularly strong category for PDRN, as the periocular area's delicate skin and common consumer concerns (puffiness, dark circles, fine lines, dullness) align well with PDRN's benefits. The ingredient's premium positioning supports higher price points and margins compared to basic skincare products.
Challenges: PDRN is less well-known than mainstream ingredients, requiring consumer education content and marketing investment. Regulatory compliance requires careful claim management — cosmetic language only, no medical or drug claims. Ingredient quality varies by supplier; thorough due diligence is essential. Formulation stability must be verified, particularly for biological ingredients in water-based products. The ingredient's animal origin (salmon) may require additional documentation for certain markets.
Recommended next steps for brands:
PDRN represents a genuine opportunity for brands that enter with a quality product, clear positioning, and a commitment to regulatory compliance. Its combination of scientific credibility, consumer appeal, and formulation versatility makes it one of the more interesting active ingredients in the current skincare landscape — and one that is likely to continue growing in popularity as more consumers discover its benefits.
About the Author
This article was prepared by the Lanthome skincare manufacturing team, with experience in private label formulation, packaging development, quality control, and international OEM/ODM projects.
