Beauty of Joseon
Pore Firming Serum (Red Bean PDRN+Peptide) 30ml
Beauty of Joseon's Pore Firming Serum carries Sodium DNA at 50ppm alongside red bean extract and the firming peptide Dipeptide Diaminobutyroyl Benzylamide Diacetate, applied after toner on pore-focused areas before the rest of a tightening routine.
No reviews yet30 ml
$83.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationDryOily
- Helps with
- A targeted step layered under a moisturizer
In stock. Arrives in 3 to 7 business days
We accept
You’re $100.00 away from free US shipping.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
Pore Firming Serum (Red Bean PDRN+Peptide) is a serum from Beauty of Joseon. A concentrated treatment step, applied after toner or essence and before moisturizer. Its manufacturer ingredient list names Niacinamide, Squalane, and Adenosine, and where each sits on that list is what tells you how much of the formula it makes up relative to everything else named. What ships is the Beauty of Joseon formula sold on shelves in Korea in this size, not a version reformulated for the US market.
Key benefits
- Niacinamide sits at position #6 of 28 on Beauty of Joseon Pore Firming Serum (Red Bean PDRN+Peptide)'s own manufacturer ingredient list.
- Squalane is also named on that same list, further down the formula.
- Pore Firming Serum (Red Bean PDRN+Peptide) is a serum from Beauty of Joseon, taking the serum's usual place in a layered Korean routine.
- Beauty of Joseon ships Pore Firming Serum (Red Bean PDRN+Peptide) here as the Korean-market formula, the same version sold on shelves in Korea, not a US-shelf reformulation.
- Sold with intact Korean-market barcode and batch coding rather than a US-retail relabel.
What is Pore Firming Serum (Red Bean PDRN+Peptide) 30ml?
It is a serum.
How do I use this serum?
Use it after toner or essence, before moisturizer. AM and/or PM.
Where does this fit if I already use sunscreen or makeup?
Apply it before sunscreen or makeup, and let it absorb fully first so it does not pill under the next layer.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (27): Purified Water, Butylene Glycol, Methyl Gluceth 20, 1,2-Hexanediol, Niacinamide, Glycerin, Polysorbate 20, Glycereth 26, Squalane, Carbomer, Tromethamine, Ethylhexylglycerin, Xanthan Gum, Adenosine, Disodium EDTA, Hydrogenated Lecithin, Coptis Japonica Root Extract, Centella Asiatica Extract, Fig Extract, Dioscorea Japonica Root Extract, Sodium DNA 50ppm, Red Bean Extract 50ppm, Hydrolyzed Corn Starch, Ceramide NP, Beta Glucan, Sucrose, Dipeptide Diaminobutyroyl Benzylamide Diacetate 2.5ppm
Ingredient list read from jolse.com on 10 September 2026.
21 of 27 explained
- Purified Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Niacinamide active
- Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- Polysorbate 20 emulsifier
- Polysorbate 20 is a solubiliser: it dissolves small amounts of oil or fragrance into a watery formula so nothing separates or floats.
- Squalane emollient
- Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
- Ethylhexylglycerin preservative booster
- Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
- Xanthan Gum thickener
- Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
- Adenosine active
- 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.
9 more explained
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Coptis Japonica Root Extract plant extract
- Coptis Japonica is a traditional East Asian medicinal root, bright yellow from its berberine content. In skincare its extract is used for the look of congested, oily skin.
- Centella Asiatica Extract plant extract
- Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.
- Fig Extract plant extract
- Fig Fruit Extract carries fruit sugars, mild acids and a protein-digesting enzyme. It is used as a hydrating extract with a light smoothing effect.
- Dioscorea Japonica Root Extract plant extract
- Dioscorea Japonica is Japanese wild yam, whose root is naturally slippery with mucilage. Its extract hydrates and leaves a cushioned feel.
- Hydrolyzed Corn Starch absorbent
- Hydrolyzed Corn Starch is starch broken into smaller fragments. It gives a silky, powdery slip and absorbs a little oil.
- Ceramide NP barrier 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.
- Sucrose humectant
- Sucrose is table sugar, used here as a humectant. It draws water into the outer layer of skin and, in a scrub, doubles as the physical grain.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809820928240
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Centella Asiatica, Ceramide NP, Niacinamide, PDRN (Sodium DNA), Squalane
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
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 - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
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. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
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.
Every order ships from California or direct from Korea, 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.
Inside the formula
Inside the formula
How to use
- Apply a few drops after toner or essence, pressing it into pore-prone areas first, then let it absorb before the next step, morning and/or evening.
Complete the routine
- This itemBeauty of Joseon Pore Firming Serum (Red Bean PDRN+Peptide) 30ml$25.00

- An as-needed step, in place of the prep layerBeauty Of Joseon Centella Asiatica Claming Mask$3.52

- The last step of the morning, over everything elseBeauty of Joseon Daily Tinted Fluid Sunscreen [VEIL COVER] SPF50+ PA+++ 50ml$37.50

Total for 3 items$66.02
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Beauty of Joseon Pore Firming Serum (Red Bean PDRN+Peptide) 30ml
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Beauty of Joseon, Korean-market original
Pore Firming Serum (Red Bean PDRN+Peptide), 30ml, Beauty of Joseon's serum with Niacinamide and Squalane.
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 skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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