Medicube
Zero Foam Cleanser$14.11COSRX
RED RICE INOSITOL Pore Clarifying Deep Cleanser
A low-pH-style deep cleanser on rice seed water with kaolin clay and gentle glycinate surfactants for congested, dull-looking skin.
No reviews yet- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- DryDehydratedSensitiveCompromised barrier
- Helps with
- DehydrationBarrier weaknessEarly environmental damageRough surface texture
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Medicube Zero Foam CleanserMedicube
$14.11
$15.29
$42.50
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How it works
A deep cleanser is asked to do more than a daily wash, and the way this one does it is with clay: kaolin and hydrated silica sit near the front of the list and take surface oil with them when they rinse. Sodium cocoyl glycinate is the surfactant base rather than a sulfate, so the wash stays mild for a formula aimed at congestion. Rice seed water, panthenol and beta-glucan are on the same list, which is what keeps a clay wash from finishing tight. It goes first in the routine, and it is worth taking slowly across the nose and chin. Every evening, or on the days skin looks congested rather than simply oily.
How to use
- Use the RED RICE INOSITOL Pore Clarifying Deep Cleanser as your first step, morning and evening, on a face already wet with lukewarm water.
- A short pump or a pea of product is enough. Work it into a lather in wet hands for about twenty seconds before it touches the face.
- Rinse with lukewarm water and go straight on to your toner while skin is still damp, because a humectant layer has more to hold on to on a damp face.
- Twice a day is the ceiling. Do not follow it with a second cleanse in the morning, when there is no sunscreen or makeup left on the face to remove.
COSRX RED RICE INOSITOL Pore Clarifying Deep Cleanser
What does the rice and inositol in this cleanser do?
Oryza sativa rice seed water and rice seed extract both appear on the list, alongside inositol, and rice-water formulas are a long standing Korean skincare category built around gentle brightening and softness on the skin's surface. Here they sit among a large supporting cast of humectants and soothing agents rather than acids, so the effect is cosmetic softness, not exfoliation.
Is this cleanser meant for oily or congested skin?
Kaolin and hydrated silica both appear on the list, and both are clay and mineral ingredients used to absorb surface oil during a wash. Combined with sodium cocoyl glycinate as the primary surfactant, that makes this a deep-clean formula better suited to oily or pore-congested skin than to already-dry skin.
Does this cleanser contain niacinamide?
Yes, niacinamide appears well down the ingredient list, after the surfactant and clay portion of the formula. In a rinse-off cleanser an ingredient at that position contributes only briefly during the wash itself rather than delivering the sustained exposure a leave-on niacinamide serum would.
Will the clay in this formula feel drying?
Kaolin and hydrated silica do draw oil, but the list also carries beta-glucan, sodium hyaluronate, hydrolyzed hyaluronic acid and panthenol to soften that effect. The balance reads as a clay cleanser designed to be used daily rather than as an occasional deep-clean mask, though very dry skin may still prefer a cream cleanser instead.
How is this different from a plain foaming cleanser?
A plain foaming cleanser is usually just a surfactant base. This one adds clay and mineral absorbents, a long humectant tail of hyaluronate forms, and ceramide NP near the end of the list, so it is built to clean and mattify oily areas while still leaving some barrier support behind after rinsing.
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 (41): AQUA/WATER, GLYCERIN, SODIUM COCOYL GLYCINATE, CELLULOSE, SODIUM LAUROYL GLUTAMATE, HYDRATED SILICA, KAOLIN, DISODIUM COCOAMPHODIACETATE, 1,2-HEXANEDIOL, ORYZA SATIVA (RICE) SEED WATER, BETAINE, SODIUM CHLORIDE, SODIUM SWEETALMONDAMPHOACETATE, LAURYL BETAINE, SODIUM METHYL COCOYL TAURATE, GLYCOL DISTEARATE, SODIUM POLYACRYLATE, GLYCOL STEARATE, ETHYLHEXYLGLYCERIN, HYDROXYACETOPHENONE, ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, CITRIC ACID, INOSITOL, POLYGLYCERIN-3, PHYTOSTERYL/OCTYLDODECYL LAUROYL GLUTAMATE, GARDENIA FLORIDA FRUIT EXTRACT, DEXTRIN, CYANOCOBALAMIN, HEXYLENE GLYCOL, BUTYLENE GLYCOL, PANTHENOL, ORYZA SATIVA (RICE) SEED EXTRACT, NIACINAMIDE, GLUCONOLACTONE, PHYTIC ACID, BETA-GLUCAN, SODIUM HYALURONATE, TOCOPHEROL, CERAMIDE NP, HYDROLYZED HYALURONIC ACID, SODIUM ACETYLATED HYALURONATE
Ingredient list read from jolse.com on 9 September 2026.
40 of 41 explained
- AQUA/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.
- SODIUM COCOYL GLYCINATE surfactant
- An amino-acid surfactant built from coconut fatty acids and glycine. Amino-acid surfactants clean at a pH close to the pH of skin itself, which is why low-pH Korean cleansers are built on them.
- CELLULOSE absorbent
- Cellulose is plant fibre. In a formula it thickens, absorbs oil and, in a sheet mask, is often the fabric itself.
- SODIUM LAUROYL GLUTAMATE surfactant
- Sodium Lauroyl Glutamate is an amino-acid-derived cleansing surfactant. It lifts oil and makeup at a pH close to skin's own, which is why it replaced sulfates in gentle cleansers.
- HYDRATED SILICA absorbent
- Hydrated Silica is silica holding bound water. It absorbs oil, thickens, and in a toothpaste or scrub works as a mild polishing grain.
- KAOLIN absorbent
- Kaolin is white clay, the mildest of the cosmetic clays. It absorbs oil and lifts loose debris from the surface without stripping, which is why it is the clay used on drier skin.
- DISODIUM COCOAMPHODIACETATE surfactant
- Disodium Cocoamphodiacetate is a very mild coconut-derived surfactant used in cleansers for reactive skin and around the eyes.
- 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.
- ORYZA SATIVA (RICE) SEED WATER plant extract
- Rice water, the liquid from steeping or washing the grain, and the oldest ingredient in the Korean rice tradition. It stands in for part of the plain water in a formula.
- 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.
- SODIUM CHLORIDE thickener
- Sodium Chloride is salt. In a cleanser it thickens the liquid; in a mask or essence it balances the mineral content of the water phase. It has no active role.
28 more explained
- LAURYL BETAINE surfactant
- Lauryl Betaine is a secondary surfactant that boosts foam and thickens a cleanser while reducing how stripping the main surfactant feels.
- SODIUM METHYL COCOYL TAURATE surfactant
- Sodium Methyl Cocoyl Taurate is a mild coconut-derived surfactant known for a rich, creamy lather that rinses without tightness.
- GLYCOL DISTEARATE emollient
- A wax-like ester that thickens a cleanser and gives it a pearly opacity. It also leaves a conditioned feel behind after rinsing.
- SODIUM POLYACRYLATE thickener
- Sodium Polyacrylate is a polymer that absorbs many times its weight in water. It thickens a formula and holds water in a gel against the skin.
- GLYCOL STEARATE emulsifier
- Glycol Stearate is a mild emulsifier and thickener. It also gives a cleanser or lotion its opaque, pearly look.
- 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.
- 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.
- ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- CITRIC ACID pH adjuster
- Citric Acid is used in tiny amounts to bring a formula to the pH its actives need, not as an exfoliant at that level. It is an AHA, so at much higher concentrations it can also exfoliate.
- INOSITOL humectant
- Inositol is a sugar-like compound found in the body. In skincare it is a humectant that also helps a formula feel conditioning rather than merely wet.
- POLYGLYCERIN-3 humectant
- Polyglycerin-3 is a short chain of glycerin units used as a gentler, less sticky humectant. It also helps oils and water stay blended.
- PHYTOSTERYL/OCTYLDODECYL LAUROYL GLUTAMATE barrier lipid
- An ester built from plant sterols, a fatty alcohol and the amino acid glutamic acid. It mimics the lipids between skin cells and helps hold water in.
- GARDENIA FLORIDA FRUIT EXTRACT plant extract
- Gardenia Fruit Extract is the traditional East Asian yellow dye plant. In skincare it is used as an antioxidant extract, and it can tint a formula.
- DEXTRIN thickener
- Dextrin is a starch fragment used to thicken and to give a formula a light, powdery finish. It is also a common carrier for powdered extracts.
- 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.
- HEXYLENE GLYCOL solvent
- Hexylene Glycol is a solvent and light humectant. It keeps ingredients that resist water in solution and thins a formula so it spreads evenly.
- 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.
- 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.
- ORYZA SATIVA (RICE) SEED EXTRACT plant extract
- Extract of the whole rice grain rather than the bran alone. It carries starch derived sugars, amino acids and a little ferulic acid, and it holds water.
- 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.
- GLUCONOLACTONE exfoliant
- Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.
- PHYTIC ACID chelator
- Phytic Acid comes from rice bran and other seed husks. It binds metal ions, which keeps a formula stable, and it is also used as a very mild exfoliant.
- 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.
- 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.
- 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.
- 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.
- HYDROLYZED HYALURONIC ACID 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.
- 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.
- Made in
- Republic of Korea
- Category
- Cleanser
- Actives
- Beta-Glucan, Ceramide NP, Hyaluronic Acid, Niacinamide, Panthenol, Rice Extract, 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.
Key benefits
- Kaolin clay and hydrated silica lift excess sebum as you massage
- Glycinate and glutamate surfactants keep the wash gentle
- Rice appears as both seed water and seed extract on the list
- Beta-glucan, panthenol and ceramide NP soften the after-feel
Inside the formula
Inside the formula
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COSRX RED RICE INOSITOL Pore Clarifying Deep Cleanser
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
COSRX
Rice deep cleanser with Kaolin Clay and gentle surfactants.
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.
COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.
Source: COSRX FAQ
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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