Beauty of Joseon
Pore Firming Serum: Red Bean + PDRN
Beauty of Joseon Pore Firming Serum: Red Bean + PDRN is a 30ml serum with Sodium DNA, used after toner and before moisturizer, morning and evening.
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- Suited to
- Dry skinCompromised barrierDehydrated skinSensitive skin
- 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 Pore Firming Serum: Red Bean + PDRN is a 30ml serum, used after toner and before moisturizer, morning and evening. The active it is built around is Sodium DNA, named twenty-first on its own ingredient list. The same list carries Niacinamide, Adenosine and Dipeptide Diaminobutyroyl Benzylamide Diacetate, 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. Beauty of Joseon sells this Sodium DNA serum in Korea, and this is that version.
Key benefits
- Sodium DNA, the active this serum is built around
- Niacinamide and Adenosine on the same list, actives
- Dipeptide Diaminobutyroyl Benzylamide Diacetate on the same list, a peptide
- Ceramide NP on the same list, a barrier lipid
- Beta-Glucan and Coptis Japonica Root Extract further down the same list
- Centella Asiatica Extract and Ficus Carica (Fig) Fruit Extract further down the same list
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. The panel names it fifth on this serum's list, beside 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 fourteenth on this serum's list, alongside Sodium DNA.
Dipeptide Diaminobutyroyl Benzylamide Diacetatepeptide
This is a two-amino-acid peptide, sold as Syn-Ake, used for the look of expression lines. Its structure was modelled on a component of snake venom, though nothing of the venom itself is in it. It is named twenty-seventh on this serum's list, alongside Sodium DNA.
Ceramide NPbarrier lipid
Ceramide NP is the most used cosmetic ceramide, the same class of lipid that makes up roughly half the mortar between cells in the outer layer of skin. Added to a cream it slots into that structure, which is why ceramide formulas feel less leaky rather than merely greasy. The panel names it twenty-fourth on this serum's list, beside Sodium DNA.
Beauty of Joseon Pore Firming Serum: Red Bean + PDRN
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 Dipeptide Diaminobutyroyl Benzylamide Diacetate. 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: Ceramide NP, Beta-Glucan and Coptis Japonica Root Extract.
- 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
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How to use
- Use the Pore Firming Serum: Red Bean + PDRN after toner and before moisturizer, morning and evening.
- Three or four drops covers the whole face. Press it in with flat palms instead of rubbing it around.
- Toner first so the surface is damp, then this, then about a minute before your moisturizer goes over the top.
- Twice a day, every day. Do not stack it with a second serum of the same kind; two hydrating serums in one routine 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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Write Reviews (opens in a new tab)Beauty of Joseon, Korean-market original
The Original Korean Formula serum from Beauty of Joseon, 30ml formulated with Sodium DNA and Niacinamide, held in the United States and shipped domestically.
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.
For Beauty of Joseon, verification is by sourcing chain. Your unit arrives with its Korean-market barcode and batch code intact, and we publish where we buy. The brand has retired its QR scan and is phasing out its authenticity seal, so the box itself is the record.
Source: Beauty of Joseon help centre
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.
Peptides can be anti-inflammatory, and chronic inflammation damages the tissue in your skin.
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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