Collagen Glow Booster Serum
Medicube Collagen Glow Booster 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 yet15ml
$14.66 per 10 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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- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
Medicube Collagen Glow Booster Serum is a serum built for the treatment step right after toner. Its ingredient list leads with Niacinamide, Adenosine, and Ceramide NP, 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 Collagen Glow Booster Serum line rather than a US-reformulated variant, the texture and finish match what Medicube sells through Korean retail.
Key benefits
- Built around Niacinamide, positioned for tone and texture.
- Built around Adenosine, positioned for firming look.
- Built around Ceramide NP, positioned for barrier support.
- Formulated as a serum for the treatment step right after toner.
- The Korean-market Medicube formula for Collagen Glow Booster Serum, matching what Medicube sells in Korea rather than a US-reformulated line.
Inside the formula
Inside the formula
Medicube Collagen Glow Booster Serum
What does the Collagen Glow Booster 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 Collagen Glow Booster 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 Collagen Glow Booster Serum the same formula sold in Korea, or a US version?
This Collagen Glow Booster 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 Collagen Glow Booster 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 Collagen Glow Booster 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 15ml 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: denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (41): Water, Glycerin, Dicaprylyl Ether, Isononyl Isononanoate, Butylene Glycol, Dipropylene Glycol, C9-12 Alkane, PEG-30 Dipolyhydroxystearate, Polyglyceryl-4 Oleate, Magnesium Sulfate, Niacinamide, 1,2-Hexanediol, Polyglyceryl-3 Polyricinoleate, Milk Protein Extract, Fragrance, Caprylyl Glycol, Chlorella Vulgaris Extract, Glucose, Fructooligosaccharides, Fructose, Caprylic/Capric Triglyceride, Adenosine, Hydrogenated Lecithin, Soluble Proteoglycan, Ethylhexylglycerin, Benzyl Salicylate, Limonene, Ceramide NP, Hydroxypropyltrimonium Hyaluronate, Linalool, Hexyl Cinnamal, Hydroxycitronellal, Tocopherol, Alpha-Isomethyl Ionone, Beta-Glucan, Geraniol, Hydrolyzed Elastin, Hydrolyzed Collagen, Hexapeptide-2, Biotin, Sodium DNA
Ingredient list read from medicube.us on 10 September 2026.
41 of 41 explained
- 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.
- 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.
- Dicaprylyl Ether emollient
- Dicaprylyl Ether is a very light emollient used to make a formula spread quickly and feel dry rather than oily.
- Isononyl Isononanoate emollient
- Isononyl Isononanoate is a branched ester used as a dry emollient. It spreads far for its weight and leaves almost no residue, which is why it appears in formulas that have to feel weightless.
- 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.
- Dipropylene Glycol humectant
- Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.
- C9-12 Alkane solvent
- A light plant-derived hydrocarbon that evaporates off skin, used in place of a volatile silicone. It carries other ingredients and then leaves.
- PEG-30 Dipolyhydroxystearate emulsifier
- PEG-30 Dipolyhydroxystearate is an emulsifier for water-in-oil formulas, the kind where water droplets sit inside an oil phase. It is common in cleansing oils and balms.
- Polyglyceryl-4 Oleate emulsifier
- Polyglyceryl-4 Oleate is a plant-derived emulsifier used in cleansing oils so they rinse cleanly.
- Magnesium Sulfate mineral
- Magnesium Sulfate is Epsom salt, used as a mineral salt in the water phase. Despite the name it is not a cleansing sulfate and does not foam.
- 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.
- 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.
29 more explained
- Polyglyceryl-3 Polyricinoleate emulsifier
- Polyglyceryl-3 Polyricinoleate is a castor-derived emulsifier that lets a formula hold a high water content inside an oil or wax base.
- Milk Protein Extract protein
- Milk Protein Extract supplies milk proteins and the lactose alongside them. It is used as a conditioning, water-holding ingredient.
- Fragrance fragrance
- Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
- Caprylyl Glycol preservative booster
- Caprylyl Glycol is a glycol that conditions skin and, more importantly, strengthens a preservative system so less of the traditional preservative is needed. It appears in most modern formulas built without parabens.
- Chlorella Vulgaris Extract plant extract
- Chlorella Vulgaris is a freshwater green algae. Its extract carries proteins, chlorophyll and amino acids and is used as a conditioning ingredient.
- Glucose humectant
- Glucose is a simple sugar used as a humectant and as food for the ferment ingredients in the same formula. It hydrates mildly and adds a soft slip.
- Fructooligosaccharides humectant
- Fructooligosaccharides are short fructose chains used as humectants and as food for the skin's own resident microbes.
- Fructose humectant
- Fructose is a simple sugar used as a light humectant. It holds water in the outer layer and often arrives as part of a fruit or honey extract.
- 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.
- 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.
- 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.
- Soluble Proteoglycan protein
- A proteoglycan is a protein with sugar chains attached, the same architecture as the water-holding molecules in cartilage and skin. Made soluble, it is used as a humectant and conditioning protein.
- 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.
- Benzyl Salicylate fragrance component
- Benzyl Salicylate is a faint floral aromatic that also holds a fragrance on skin longer. It is one of the 26 fragrance components EU labelling requires to be named.
- Limonene fragrance component
- Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
- 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.
- 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.
- Linalool fragrance component
- Linalool is a floral aromatic found in lavender, bergamot and coriander. It is one of the 26 fragrance components EU labelling requires to be declared by name.
- Hexyl Cinnamal fragrance component
- Hexyl Cinnamal is a jasmine-like aromatic. It is one of the 26 fragrance components EU labelling requires to be named individually.
- Hydroxycitronellal fragrance component
- Hydroxycitronellal is a soft lily-of-the-valley aromatic. It is one of the 26 declarable fragrance components.
- 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.
- Alpha-Isomethyl Ionone fragrance component
- A soft violet and woody aromatic. It is one of the 26 fragrance components EU labelling requires to be named.
- Beta-Glucan polysaccharide
- Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin.
- Geraniol fragrance component
- Geraniol is a rose-scented aromatic found in geranium and citronella oils. It is one of the 26 declarable fragrance components.
- Hydrolyzed Elastin protein
- Hydrolyzed Elastin is fragments of elastin, the protein that gives skin its snap back. Like collagen it cannot rebuild the real thing from the outside; it holds water and leaves a smooth film.
- 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.
- Hexapeptide-2 peptide
- Hexapeptide-2 is a six-amino-acid peptide used for the look of even tone rather than of lines, which puts it in the smaller group of peptides aimed at pigment.
- Biotin vitamin
- Biotin is vitamin B7. In skincare it is a conditioning vitamin, most often in hair and scalp formulas.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809981339206
- Made in
- Republic of Korea
- Volume
- 15ml
- Category
- Serum & Ampoule / Milky glow-boosting serum
- Actives
- Adenosine, Beta-Glucan, Ceramide NP, Collagen, Niacinamide, PDRN (Sodium DNA), Peptides
- 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.
How to use
- Use it after toner, morning or evening, before anything heavier goes on over it.
- A small dose is enough from a 15ml bottle, warmed in the palm and pressed over the face.
- Let it settle for a minute, then moisturizer, and sunscreen last in the morning.
- Once or twice a day. Do not use it as your only moisturizer, because a booster is a layer rather than a seal.
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 Collagen Glow Booster Serum
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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 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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