COSRX
5 PDRN Collagen Intense Vitalizing Serum (50 mL / 1.69 fl oz)
COSRX 5 PDRN Collagen Intense Vitalizing Serum is a 50ml serum from COSRX built around Sodium DNA.
No reviews yet- Ships from our California warehouse
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- Suited to
- Dehydrated skinSensitive skinSkin that has lost bounceDull, uneven tone
- Helps with
- Shoppers looking for Sodium DNA in a serumRoutines that want Sodium DNA and Niacinamide in one stepFilling the serum step with a Korean-market formula
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- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The 5 PDRN Collagen Intense Vitalizing Serum is a 50ml serum, used after toner and before moisturizer, morning and evening. The active it is built around is Sodium DNA, named tenth on its own ingredient list. The same list carries Niacinamide, Adenosine and Allantoin, so the active is not the only thing on it worth naming. How much of the Sodium DNA stays on the skin, and for how long, is decided by the serum format rather than by the list alone. COSRX sells this Sodium DNA serum in Korea, and this is that version.
Key benefits
- Sodium DNA, the active this serum is built around
- Niacinamide, Adenosine, Allantoin and Alpha-Arbutin on the same list, actives
- Hydrolyzed DNA and Acetyl Hexapeptide-8 further down the same list
- Lactobacillus Ferment and Tocopherol further down the same list
- Sodium DNA named tenth on the manufacturer list printed on this page
Key actives
Sodium DNAactive
Sodium DNA is the salt of DNA, in Korean skincare almost always salmon derived, and it is the ingredient behind the PDRN category. It is used as a humectant and for the look of tired skin; the fragments themselves are what the name PDRN refers to. It is the entry this serum is named after, and the list carries it.
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is named sixth on this serum's list, alongside Sodium DNA.
Adenosineactive
Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated. It is named fifteenth on this serum's list, alongside Sodium DNA.
Allantoinactive
Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin. The panel names it twenty-second on this serum's list, beside Sodium DNA.
Alpha-Arbutinactive
Alpha-Arbutin is a plant-derived compound, related to the sugar-bound form found in bearberry, used for the look of dark spots and uneven tone. It is stable in water and works at skin-friendly pH. It is named twenty-third on this serum's list, alongside Sodium DNA.
COSRX 5 PDRN Collagen Intense Vitalizing Serum (50 mL / 1.69 fl oz)
Where does this serum go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than a serum goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Sodium DNA and not three changes at once.
What else is on the list besides Sodium DNA?
Niacinamide, Adenosine and Allantoin. The order they are printed in on this serum's panel is the order on the box, so you can see where Sodium DNA sits relative to them. Further down the same panel: Alpha-Arbutin, Hydrolyzed DNA and Acetyl Hexapeptide-8.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How to use
- Use the 5 PDRN Collagen Intense Vitalizing Serum after toner and before moisturizer, morning and evening.
- Three or four drops covers the face and neck. Press it in with flat palms rather than rubbing it around.
- Toner first, this second, then moisturizer, and sunscreen last in the morning.
- Twice a day, every day. Do not stack it with a second serum doing the same job; two at once do the work of one.
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Sodium DNA on the list.
- Introduce this serum on its own for the first week, so anything your skin does is traceable to the Sodium DNA rather than to three changes at once.
Reviews
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COSRX, Korean-market original
This serum's list includes Sodium DNA, the name behind the PDRN marketing, alongside Hydrolyzed Collagen, Adenosine, and Alpha-Arbutin, within a base built from eight hyaluronate forms rather than one.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.
Source: COSRX FAQ
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic It's still a very new ingredient in the field of regenerative medicine.
Catherine ChangBeverly Hills board-certified plastic and reconstructive surgeon, Harper's Bazaar
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
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