Soybean Milk Serum 50ml
mixsoon Soybean Milk Serum 50ml is a serum that names Lactobacillus/Soybean Ferment Extract on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet50 ml
$160.00 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalDryCombinationMature
- Helps with
- DehydrationDullnessA concentrated treatment stepUneven texture
In stock. Arrives in 3 to 7 business days
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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
Lactobacillus/Soybean Ferment Extract is named on the ingredient panel on this serum. This is soybean fermented by lactobacillus. The fermentation breaks soy proteins into smaller pieces, which is what makes the extract easier for a formula to carry. On this panel it sits alongside Galactomyces Ferment Filtrate, Niacinamide and Adenosine. Galactomyces Ferment Filtrate is a yeast ferment filtered clear, the ingredient that made the Korean and Japanese essence category. It carries amino acids, vitamins and organic acids and is used for the look of dullness and rough texture.
Key benefits
- Lactobacillus/Soybean Ferment Extract named on this product's own ingredient panel
- Galactomyces Ferment Filtrate on the same panel, the formula's ferment
- Niacinamide on the same panel, the formula's active
- 50 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Inside the formula
Inside the formula
What is the mixsoon Soybean Milk Serum 50ml for?
It is a serum from mixsoon's Korean-market lineup, meant to sit in the routine as a concentrated treatment step. It ships as the same formula sold in Korea rather than a US-shelf reformulation, so the ingredient list on the box matches what Korean shoppers buy.
When should I use this serum in my routine?
AM and PM, after toner and before moisturizer, as the concentrated treatment step. Give it a minute to settle into the skin before layering the next product on top, and keep the same order every time you use it so you can tell what is actually working.
Can I use this alongside other treatment steps?
Yes, it is designed to sit inside a normal routine rather than replace it. Introduce it on its own for the first week so you know how your skin responds, then layer in other treatment steps as usual.
Is this the same formula sold in Korea, or a US version?
This is the Korean-market mixsoon formula, over-labeled in English for US sale rather than reformulated for the US market. The ingredient list on the box is the same one Korean shoppers see on the shelf.
How long does a bottle typically last with regular use?
That depends on how much is used per application and how many steps sit around it in your routine, since a serum used once or twice daily is used differently from one used weekly.
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 (46): Water/Aqua, Glycerin, Cetyl Ethylhexanoate, Dipropylene Glycol, Galactomyces Ferment Filtrate, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Betaine, Hydroxyacetophenone, Panthenol, Polyglyceryl-3 Methylglucose Distearate, Trehalose, Glyceryl Stearate, Carbomer, Arginine, Sorbitan Stearate, Xanthan Gum, Sorbitan Sesquioleate, Ethylhexylglycerin, Adenosine, Butyrospermum Parkii (Shea) Butter, Disodium EDTA, Caprylic/Capric Triglyceride, Lactobacillus/Soybean Ferment Extract (20 Ppm), Lactobacillus/Rice Ferment, Lactobacillus/Panax Ginseng Root Ferment Filtrate, Saccharomyces/Coix Lacryma-Jobi Ma-Yuen Seed Ferment Filtrate, Saccharomyces/Potato Extract Ferment Filtrate, Sucrose Cocoate, Ceramide NP, Hydrogenated Lecithin, Phytosphingosine, Cholesterol, Hydrolyzed Soy Protein (110 Ppm), Phytosterols, Mentha Suaveolens Leaf Extract, Camellia Sinensis Leaf Extract, Thymus Vulgaris (Thyme) Leaf Extract, Soluble Collagen, Glucose, Mannose, Glutathione, Oligopeptide-29, Oligopeptide-32, Palmitoyl Pentapeptide-4
Ingredient list read from inkeedecoder.com on 10 September 2026.
46 of 46 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.
- 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.
- 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.
- 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.
- Galactomyces Ferment Filtrate ferment
- Galactomyces Ferment Filtrate is a yeast ferment filtered clear, the ingredient that made the Korean and Japanese essence category. It carries amino acids, vitamins and organic acids and is used for the look of dullness and rough texture.
- 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.
- 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.
- Betaine humectant
- Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.
- Hydroxyacetophenone preservative booster
- Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
- 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.
- Polyglyceryl-3 Methylglucose Distearate emulsifier
- Polyglyceryl-3 Methylglucose Distearate is a sugar-derived emulsifier known for a light, non-soapy feel. It builds gel-creams that do not read as rich.
34 more explained
- Trehalose humectant
- Trehalose is a sugar that some desert plants use to survive drying out. In skincare it is a humectant that holds water in the outer layer and helps a formula feel comfortable rather than tight.
- Glyceryl Stearate emulsifier
- Glyceryl Stearate is glycerin joined to stearic acid, and one of the most used emulsifiers in skincare. It holds oil and water together and thickens the result, and it softens skin at the same time.
- 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.
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
- Sorbitan Stearate emulsifier
- Sorbitan Stearate is a mild emulsifier and thickener used to hold oil and water together in creams.
- 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.
- Sorbitan Sesquioleate emulsifier
- Sorbitan Sesquioleate is a water-in-oil emulsifier and pigment disperser. Cleansing oils use it so water can be worked into the oil at the rinse.
- 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.
- 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.
- Butyrospermum Parkii (Shea) Butter emollient
- Shea Butter is the fat pressed from the shea nut, rich in oleic and stearic acids and unsaponifiable plant sterols. It is a heavy emollient and partial occlusive, which is why it sits in balms and night creams rather than in essences.
- 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.
- 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.
- Lactobacillus/Soybean Ferment Extract (20 Ppm) ferment
- This is soybean fermented by lactobacillus. The fermentation breaks soy proteins into smaller pieces, which is what makes the extract easier for a formula to carry.
- Lactobacillus/Rice Ferment ferment
- Rice fermented with lactobacillus, the same bacteria behind kimchi and makgeolli. Fermentation breaks the rice starch into smaller sugars and amino acids that hold water.
- Lactobacillus/Panax Ginseng Root Ferment Filtrate ferment
- Ginseng root fermented with lactobacillus and strained. Fermentation cuts the large ginsenosides into smaller forms, which is why Korean brands ferment ginseng so often.
- Saccharomyces/Coix Lacryma-Jobi Ma-Yuen Seed Ferment Filtrate ferment
- Job's tears, the yulmu of Korean grain tea, fermented with yeast and strained. It supplies sugars and amino acids and is used as a conditioning ferment.
- Saccharomyces/Potato Extract Ferment Filtrate ferment
- Potato extract fermented with yeast and strained. It supplies sugars and amino acids and is used as a conditioning ferment.
- Sucrose Cocoate emulsifier
- Sucrose Cocoate is table sugar joined to coconut fatty acids. It is a very mild emulsifier and cleanser that also holds water, so it turns up in gentle cleansers and toners.
- 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.
- Phytosphingosine barrier lipid
- Phytosphingosine is the backbone every ceramide is built on, and skin uses it in its own lipid layer. In a formula it works with ceramides and cholesterol and also keeps the product stable against microbes.
- Cholesterol barrier lipid
- Cholesterol is the third of the three lipids the outer layer of skin is built from, with ceramides and fatty acids. Formulas that carry all three are following the ratio skin itself holds.
- Hydrolyzed Soy Protein (110 Ppm) protein
- Hydrolyzed Soy Protein is soy protein cut into water-soluble fragments. It conditions the surface and holds water, and it is one of the most used plant proteins in cosmetics.
- Phytosterols emollient
- Phytosterols are plant sterols, structurally close to the cholesterol in skin's own lipid layer. They soften skin and help the oil phase of a formula hold together.
- Mentha Suaveolens Leaf Extract plant extract
- Round-leaved mint leaf extract, one of the mild mints. It is used as a conditioning extract and carries a light mint scent.
- Camellia Sinensis Leaf Extract plant extract
- Camellia Sinensis is the tea plant. Green tea leaf extract carries catechins, among the most studied plant antioxidants, and is used for the look of redness and oily shine.
- Thymus Vulgaris (Thyme) Leaf Extract plant extract
- Thyme leaf extract, carrying the phenols thymol and carvacrol along with rosmarinic acid. It is used as an antioxidant herbal extract.
- Soluble Collagen protein
- Soluble Collagen is collagen kept in its intact triple-helix form and dissolved rather than cut up. It sits on the surface as a water-holding film.
- 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.
- Mannose sugar
- Mannose is a simple sugar closely related to glucose. It is used as a humectant and as a building block in the polysaccharide blends that hold water on the surface.
- Glutathione antioxidant
- Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
- Oligopeptide-29 peptide
- A short chain of amino acids used as a conditioning peptide. Oligopeptide numbers are registry entries, not strengths.
- Oligopeptide-32 peptide
- A short amino acid chain used as a conditioning peptide, usually one of several oligopeptides declared together.
- Palmitoyl Pentapeptide-4 peptide
- Palmitoyl Pentapeptide-4 is the five-amino-acid peptide originally sold as Matrixyl. It is used for the look of fine lines and is one of the longest-standing cosmetic peptides.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809732912528
- Made in
- Republic of Korea
- Volume
- 50 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Ceramide NP, Collagen, Ginseng, Glutathione, Green Tea, Niacinamide, Panthenol, Peptides, Shea Butter, Trehalose
- 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
- AM and PM, after toner and before moisturizer, as the concentrated treatment step.
Worth knowing
- New to this formula: patch-test on the inner arm and wait a day before applying it to the face.
- Discontinue use if redness, itching, or irritation develops and rinse the area with water.
Complete the routine
- This itemmixsoon Soybean Milk Serum 50ml$80.00
- The treatment step of this routinemixsoon Mung Bean Seed Essence 100ml$67.50
- Prep after cleansing, before the treatment stepmixsoon Centella Asiatica Toner 300ml$42.50
Total for 3 items$190.00
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mixsoon Soybean Milk Serum 50ml
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mixsoon, Korean-market original
mixsoon's Soybean Milk Serum, a serum led by Galactomyces Ferment Filtrate, sold here in its Korean-market 50ml.
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.
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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