PDRN Pink Collagen Bubble Serum
Medicube PDRN Pink Collagen Bubble Serum is a Korean-market serum built around Niacinamide, formulated in Korea and sold here in its original Korean-market formula rather than a US-shelf reformulation.
No reviews yet95ml
$24.20 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- normal skincombination skindry skin
- Helps with
- loss of bounce and firmnessgeneral day-to-day maintenance as part of a full routinea routine that wants a Korean-market step in this category
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Key benefits
- Built around Niacinamide, positioned for tone and texture.
- Built around Adenosine, positioned for firming look.
- Built around Collagen, positioned for plumping feel.
- Formulated as a serum for the treatment step right after toner.
- The Korean-market Medicube formula for PDRN Pink Collagen Bubble Serum, matching what Medicube sells in Korea rather than a US-reformulated line.
Key actives
2NiacinamideTone and texture
Niacinamide sits near the top of the ingredient list, where the formula puts its heaviest-weighted ingredients. It is an ingredient chosen for tone and texture: a form of vitamin B3 that supports a more even-looking tone and a smoother surface texture with regular use, and layers comfortably under most other actives.
15AdenosineFirming look
Adenosine sits in the middle stretch of the ingredient list, a supporting rather than a headline role. It is an ingredient chosen for firming look: a nucleoside included for its reputation in smoothing the look of fine expression lines, one of the more established anti-aging ingredients in Korean formulation.
19CollagenPlumping feel
Collagen sits in the middle stretch of the ingredient list, a supporting rather than a headline role. It is an ingredient chosen for plumping feel: included for the cushioned, bouncy surface feel it gives a formula rather than for any claim about the skin's own collagen.
21Sodium DNARegeneration support
Sodium DNA sits in the middle stretch of the ingredient list, a supporting rather than a headline role. It is an ingredient chosen for regeneration support: a salmon-derived DNA fragment ingredient that has become one of the signature actives in recent Korean formulation, chosen for its reputation supporting a plumper, more resilient-looking surface.
27RetinolRenewal
Retinol sits further down the ingredient list, in a supporting, lower-weighted role. It is an ingredient chosen for renewal: a vitamin A derivative and one of the best studied ingredients in skincare, included here at a level meant for nightly use rather than an occasional strong peel.
Inside the formula
Inside the formula
- 2Niacinamide
- 15Adenosine
- 19Collagen
- 27Retinol
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Medicube PDRN Pink Collagen Bubble Serum
What does the PDRN Pink Collagen Bubble Serum actually contain?
Its ingredient list is led by Niacinamide, with the rest of the formula built to support that active rather than compete with it. We list the ingredients in the order the manufacturer prints them, so the ones near the top of the panel are doing the most work in the formula.
How do I use the PDRN Pink Collagen Bubble Serum?
Use this serum as the treatment step right after toner. To apply, smooth or press onto cleansed, toned skin and follow with moisturizer. Keep it to AM/PM unless the packaging states otherwise, and give the rest of the routine a moment to settle before layering the next step. Give it a full bottle or box before judging the result, since most Korean routines are built for steady use rather than a single application.
Is the PDRN Pink Collagen Bubble Serum the same formula sold in Korea, or a US version?
This PDRN Pink Collagen Bubble Serum is the Korean-market formula, not a version reformulated for US shelves. It arrives with its original Korean-market barcode and batch code intact so the formula can be checked against the box on arrival.
Can I use the PDRN Pink Collagen Bubble Serum with other actives in my routine?
Yes, as long as it is used in its own step, the treatment step right after toner, and not layered on top of a product doing the same job. Introduce any new step gradually over the first week or two and keep an eye on how the skin responds before adding a second new active alongside it.
Who is the PDRN Pink Collagen Bubble Serum suited for?
It suits most skin types looking for treatment step right after toner rather than a single acute problem. It comes in a 95ml format. Anyone with a known sensitivity to a specific ingredient should check the full ingredient panel on this page before buying.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (44): WATER(AQUA), NIACINAMIDE, HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL, GLYCERIN, HYDROGENATED POLY(C6-14 OLEFIN), C12-14 ALKETH-12, 1,2-HEXANEDIOL, PROPANEDIOL, ISODODECANE, ETHYLHEXYL PALMITATE, CETYL ETHYLHEXANOATE, ETHYLHEXYLGLYCERIN, AMMONIUM ACRYLOYLDIMETHYLTAURATE/VP COPOLYMER, TRIETHYL CITRATE, ADENOSINE, TOCOPHEROL, DISODIUM EDTA, CYANOCOBALAMIN, COLLAGEN, BETULA ALBA BARK/LEAF EXTRACT, SODIUM DNA, RICINUS COMMUNIS (CASTOR) SEED OIL, ILLICIUM VERUM (ANISE) FRUIT/SEED OIL, CYMBOPOGON CITRATUS LEAF OIL, COLLAGEN EXTRACT, XANTHAN GUM, RETINOL, PANTHENOL, HYDROLYZED COLLAGEN, BUTYLENE GLYCOL, CAPRYLIC/CAPRIC TRIGLYCERIDE, CERAMIDE NP, HYDROGENATED LECITHIN, SODIUM HYALURONATE, HYALURONIC ACID, SODIUM HYALURONATE CROSSPOLYMER, SERINE, MILK PROTEIN EXTRACT, HYDROLYZED SODIUM HYALURONATE, HYDROLYZED HYALURONIC ACID, GLUTAMIC ACID, ASPARTIC ACID, SODIUM ACETYLATED HYALURONATE, HYDROXYPROPYLTRIMONIUM HYALURONATE
43 of 44 explained
- WATER(AQUA) 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.
- 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.
- HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL emollient
- Sunflower Seed Oil is high in linoleic acid, the fatty acid dry and blemish-prone skin is often short of. It is a light, non-fragrant emollient and one of the better tolerated plant oils.
- 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.
- HYDROGENATED POLY(C6-14 OLEFIN) emollient
- Hydrogenated Poly(C6-14 Olefin) is a synthetic hydrocarbon emollient. It gives a smooth, silicone-like glide and is completely stable, so it does not go rancid.
- C12-14 ALKETH-12 emulsifier
- C12-14 Alketh-12 is a solubiliser used to keep oils and fragrance dissolved in a water-based formula.
- 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.
- PROPANEDIOL humectant
- Propanediol is a plant-derived glycol used in place of propylene glycol. It hydrates, carries actives into solution, and gives a lighter, less sticky slip than glycerin at the same strength.
- ISODODECANE solvent
- Isododecane is a light, volatile hydrocarbon. It carries pigments and film formers on smoothly and then evaporates, leaving the film behind and nothing oily.
- ETHYLHEXYL PALMITATE emollient
- Ethylhexyl Palmitate is a palm-derived ester used as a light emollient and a solvent for pigment. It gives a smooth, non-greasy slip.
- CETYL ETHYLHEXANOATE emollient
- Cetyl Ethylhexanoate is a synthetic ester used as a dry-feeling emollient. It spreads easily, leaves a silky rather than oily finish, and helps disperse pigments and UV filters evenly.
- 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.
31 more explained
- AMMONIUM ACRYLOYLDIMETHYLTAURATE/VP COPOLYMER thickener
- This is a synthetic thickener that gels quickly and holds an emulsion stable across a wide pH range. It gives a light, non-tacky body.
- TRIETHYL CITRATE solvent
- Triethyl Citrate is a citric acid ester used as a light solvent and plasticiser. It keeps films flexible and helps hold fragrance in place.
- 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.
- TOCOPHEROL antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- 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.
- CYANOCOBALAMIN vitamin
- Cyanocobalamin is vitamin B12, and it is a deep pink-red, which is why a formula carrying it often has a colour nobody added on purpose. It is used as a conditioning vitamin.
- COLLAGEN protein
- Collagen is the structural protein that makes up most of the dermis. Applied on top it is far too large to enter skin, so in a formula it works as a humectant and a smoothing film former.
- BETULA ALBA BARK/LEAF EXTRACT plant extract
- White birch bark and leaf extract, carrying betulin and flavonoids. It is a different ingredient from birch juice, which is the tapped sap and far more dilute.
- SODIUM DNA active
- 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.
- RICINUS COMMUNIS (CASTOR) SEED OIL emollient
- Castor Oil is thick, glossy and unusually good at dissolving pigment, which is why it dominates lip and cleansing-balm formulas. It is a heavy emollient.
- ILLICIUM VERUM (ANISE) FRUIT/SEED OIL fragrance component
- Star anise oil, an essential oil dominated by anethole. It scents a formula strongly and is used in small amounts.
- CYMBOPOGON CITRATUS LEAF OIL fragrance component
- Lemongrass leaf oil, an essential oil rich in citral. It scents a formula and is one of the essential oils most likely to bother reactive skin.
- COLLAGEN EXTRACT protein
- Collagen Extract is a collagen-bearing extract, usually from fish skin or scales. In a formula it works as a humectant and a smoothing film rather than as a source of new collagen.
- 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.
- RETINOL active
- Retinol is the alcohol form of vitamin A and the strongest retinoid available without a prescription. Skin converts it in two steps to retinoic acid, and it is used at night, at low percentages, for the look of fine lines and rough texture. It can leave skin flaking while it acclimatises.
- PANTHENOL humectant
- Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.
- HYDROLYZED COLLAGEN protein
- Hydrolyzed Collagen is collagen broken into fragments small enough to dissolve in water. It cannot become collagen in skin; what it does is hold water at the surface and leave a smooth, conditioned film.
- 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.
- CAPRYLIC/CAPRIC TRIGLYCERIDE emollient
- Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant 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.
- 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.
- SODIUM HYALURONATE humectant
- Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
- HYALURONIC ACID humectant
- Hyaluronic Acid is a sugar chain the body already makes, and one gram of it can hold several litres of water. In a formula it is a humectant that pulls water to the surface of skin and holds it in a film, which is what makes skin look plumper while it is there.
- SODIUM HYALURONATE CROSSPOLYMER humectant
- Sodium Hyaluronate Crosspolymer is hyaluronic acid linked into a mesh. It holds water in a soft gel on the surface rather than sinking in, and it releases that water slowly through the day.
- SERINE amino acid
- Serine is one of the most abundant free amino acids in the outer layer of skin, where it helps hold water. Added to a formula it is a humectant.
- MILK PROTEIN EXTRACT protein
- Milk Protein Extract supplies milk proteins and the lactose alongside them. It is used as a conditioning, water-holding ingredient.
- HYDROLYZED SODIUM HYALURONATE humectant
- Hydrolyzed Hyaluronic Acid is hyaluronic acid cut into much shorter fragments. The smaller the fragment, the further into the outer layer it can settle, which is why serums stack several sizes together instead of using one.
- GLUTAMIC ACID amino acid
- Glutamic Acid is an amino acid used as a humectant and a mild pH adjuster. It is one of the components of skin's natural moisturising factor.
- ASPARTIC ACID amino acid
- Aspartic Acid is an amino acid used as a humectant and buffer, usually within a wider amino acid blend.
- SODIUM ACETYLATED HYALURONATE humectant
- Sodium Acetylated Hyaluronate is hyaluronic acid modified to be part oil-loving, so it clings to skin instead of rinsing away. Formulators call it the one that stays put.
- HYDROXYPROPYLTRIMONIUM HYALURONATE humectant
- Hydroxypropyltrimonium Hyaluronate carries a positive charge, and skin carries a slight negative one, so it is attracted to the surface and stays through rinsing. It is the hyaluronic used where a formula gets washed off.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 95ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Birch Sap, Ceramide NP, Collagen, Hyaluronic Acid, Niacinamide, Panthenol, PDRN (Sodium DNA), Retinol, Sodium Hyaluronate
- 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.
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.
How it works
Medicube PDRN Pink Collagen Bubble Serum is a serum built for the treatment step right after toner. Its ingredient list leads with Niacinamide, Adenosine, and Collagen, so the formula's stated purpose lines up with what actually sits near the top of that list rather than with a single marketing ingredient buried further down. Niacinamide does the most work here as a tone and texture, and the remaining actives round out the texture and finish rather than compete for attention. Placed as the treatment step right after toner, it is meant to be used AM/PM rather than swapped freely between steps. Because this is the Korean-market version of the PDRN Pink Collagen Bubble Serum line rather than a US-reformulated variant, the texture and finish match what Medicube sells through Korean retail.
How to use
- Use it after toner in the serum slot, morning or evening, on skin that is still slightly damp.
- A pump into the palm, where it foams, then pressed over the face before the foam has collapsed.
- Wait for it to settle into a thin layer, then moisturizer, then sunscreen in the morning.
- Once or twice a day. Do not rub the foam in as though it were a cleanser, because this one stays on.
Worth knowing
- Patch test on the inner arm before the first full-face application, especially on skin that reacts easily to new products.
- Stop use and rinse off if stinging, burning, or new redness shows up rather than pushing through discomfort.
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Medicube PDRN Pink Collagen Bubble Serum
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
Medicube, Korean-market original
Medicube's Korean-market serum led by Niacinamide, the same formula sold in Korea.
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.
Medicube prints a QR code on the inner box. Scan it with your phone camera and it resolves to the brand’s own verification site.
Verify on medicubeverify.com →Source: Medicube packaging and verification site
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.
Topical collagen is a very large molecule that's too big to absorb into the skin.
Michelle Henry, MDDermatologist, Cosmopolitan 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
1 more professional perspective
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
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