Z+PIDERM
ECF Skin Barrier Cream Toner$23.52THE LAB by BLANC DOUX
PREBIOTIC-CERA Liquid 210ml
PREBIOTIC-CERA Liquid is a 210ml essence used after toner and before a serum or ampoule, meant as a lightweight prep step for skin that wants extra comfort before the heavier layers of the routine.
No reviews yet210 ml
$14.29 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationDry
- Helps with
- Adding a light layer of hydration ahead of heavier serums
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
PREBIOTIC-CERA Liquid 210ml is THE LAB by BLANC DOUX's skincare product, sitting at the routine step in a layered Korean routine. Ceramide NP is a lipid that mimics the skin's own barrier-building blocks, a staple of Korean barrier-support formulas. Caprylic/Capric Triglyceride appears on this formula's own ingredient list at this position; Korean INCI labeling orders ingredients by concentration, so where it sits here reflects its share of the overall blend rather than a marketing claim. Mangifera Indica (Mango) Seed Butter appears on this formula's own ingredient list at this position; Korean INCI labeling orders ingredients by concentration, so where it sits here reflects its share of the overall blend rather than a marketing claim. That formula is what makes a skincare product worth sourcing specifically: the finish, glide and Korean-market ingredient sourcing are the same as what a shopper would buy off a Korean shelf. THE LAB by BLANC DOUX sells THE LAB by BLANC DOUX PREBIOTIC-CERA Liquid 210ml as one entry in a wider catalog, and this 210.0ml is sized the way Korean shoppers actually buy it rather than a US-market repack.
Key benefits
- PREBIOTIC-CERA Liquid 210ml is THE LAB by BLANC DOUX's skincare product, sourced for the Korean market rather than reformulated for US shelves.
- Carries Ceramide NP, which is a lipid that mimics the skin's own barrier-building blocks, a staple of Korean barrier-support formulas.
- Carries Caprylic/Capric Triglyceride, which appears on this formula's own ingredient list at this position; Korean INCI labeling orders ingredients by concentration, so where it sits here reflects its share of the overall blend rather than a marketing claim.
- Carries Mangifera Indica (Mango) Seed Butter, which appears on this formula's own ingredient list at this position; Korean INCI labeling orders ingredients by concentration, so where it sits here reflects its share of the overall blend rather than a marketing claim.
- Ships with the Korean-market barcode and batch code intact, the same box sold on Korean shelves rather than a US repack.
- Suited to shoppers targeting everyday hydration and comfort.
What is PREBIOTIC-CERA Liquid 210ml?
It is an essence.
How do I use this essence?
Use it after toner, before serum or ampoule. AM and 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 (28): Water, Butylene Glycol, Caprylic/Capric Triglyceride, Mangifera Indica (Mango) Seed Butter, Glycerin, Lactobacillus Ferment Lysate, Taraxacum Officinale (Dandelion) Leaf Extract, Ceramide NP, Ceramide EOP, Ceramide NS, Ceramide AS, Ceramide AP, Phytosphingosine, Boswellia Serrata Resin Extract, Cholesterol, Hydrogenated Lecithin, Polyacrylic Acid, Polyglyceryl-2 Stearate, Glycereth-25 Pca Isostearate, Glyceryl Stearate, Arginine, Stearyl Alcohol, Cetearyl Alcohol, Disodium EDTA, 1,2-Hexanediol, Stearic Acid, Carbomer, Ethylhexylglycerin
Ingredient list read from inkeedecoder.com on 10 September 2026.
27 of 28 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.
- 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.
- Mangifera Indica (Mango) Seed Butter emollient
- Mango seed butter, pressed from the kernel. It is a soft solid at room temperature and melts on skin, so it is used where a formula needs richness without the waxiness of shea.
- 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.
- Lactobacillus Ferment Lysate ferment
- Lactobacillus Ferment Lysate is the ferment with the bacterial cells broken open, so their contents are in the formula too. It is a conditioning ferment used in barrier-focused products.
- Taraxacum Officinale (Dandelion) Leaf Extract plant extract
- Dandelion leaf extract, carrying flavonoids, minerals and plant acids. It is used as a conditioning antioxidant extract.
- 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.
- Ceramide EOP barrier lipid
- Ceramide EOP is the ceramide with the longest tail, and in skin it acts as the rivet holding the lipid layers together. It is the third member of the standard cosmetic ceramide trio.
- Ceramide NS barrier lipid
- Ceramide NS is another of the ceramides skin makes for itself. It is used alongside NP and AP so a formula supplies a mixture rather than a single lipid.
- Ceramide AS barrier lipid
- Ceramide AS is a further member of the same lipid family. Its presence usually signals a formula built around a full ceramide profile rather than a single headline one.
- Ceramide AP barrier lipid
- Ceramide AP is a second cosmetic ceramide, distinguished by an extra hydroxyl group. Formulas that name several ceramides are copying the mix skin actually holds rather than relying on one.
15 more explained
- 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.
- Boswellia Serrata Resin Extract plant extract
- Frankincense resin extract. The resin carries boswellic acids and aromatic terpenes, and in a formula it is a botanical extract that also contributes scent.
- 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.
- 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.
- Polyglyceryl-2 Stearate emulsifier
- Polyglyceryl-2 Stearate is a plant-derived emulsifier used to stabilise creams with a light finish.
- Glycereth-25 Pca Isostearate emollient
- Glycereth-25 PCA Isostearate is a water-dispersible emollient that softens skin and helps oils and water stay mixed. It reads as light rather than rich on the skin.
- 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.
- 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.
- Stearyl Alcohol fatty alcohol
- Stearyl Alcohol is a solid fatty alcohol used to thicken and stabilise creams. Like the other fatty alcohols it is an emollient, not a solvent.
- Cetearyl Alcohol fatty alcohol
- Cetearyl Alcohol is a waxy solid, not the drying kind of alcohol. It is a blend of cetyl and stearyl alcohols used to thicken a cream and keep oil and water from separating, and it softens skin as it does so.
- 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.
- 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.
- Stearic Acid fatty acid
- Stearic Acid is a saturated fatty acid from plant fats, and one of the three lipid classes skin's own barrier is built from. In a formula it thickens, stabilises the emulsion and can be turned into a soap-style cleanser by adding a base.
- 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.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809595054946
- Made in
- Republic of Korea
- Volume
- 210 ml
- Category
- Toner
- Actives
- Ceramide NP, Ceramides
- 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
- Sweep it over the face after cleansing with a cotton pad or by hand, letting the ceramide-led formula prep skin before serum or ampoule; use both morning and evening.
Complete the routine
- This itemTHE LAB by BLANC DOUX PREBIOTIC-CERA Liquid 210ml$30.00

- Seal the routine in as the last stepTHE LAB by BLANC DOUX Oligo Hyaluronic Acid Calming+ Lotion 150ml$25.00

- Prep after cleansing, before the treatment stepTHE LAB by BLANC DOUX PREBIOTIC-CERA Cream Mist 95ml$22.50

Total for 3 items$77.50
Reviews
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THE LAB by BLANC DOUX PREBIOTIC-CERA Liquid 210ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
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A blunt first take on the Dr. Althea range.
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A first look at the viral 345 Relief Cream before buying.
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A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
THE LAB by BLANC DOUX, Korean-market original
PREBIOTIC-CERA Liquid 210ml, THE LAB by BLANC DOUX's skincare product in its authentic Korean-market formula.
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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