Sungboon Editor
Deep Collagen CICA Teatree Soothing Mask$11.76COSRX
Ultimate Nourishing Rice Overnight Spa Mask
An overnight mask built on sunflower seed oil rather than water, adding rice extract and niacinamide further down the list, applied thick as the last step before bed.
No reviews yet- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- DryDehydratedSensitiveCompromised barrier
- Helps with
- DehydrationBarrier weaknessEarly environmental damageUneven tone and dullness
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Sungboon Editor Deep Collagen CICA Teatree Soothing MaskSungboon Editor
$11.76
$3.52
$2.34
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
An overnight mask is the last layer of the evening, and it earns its place by staying on for hours. This one is oil-forward: sunflower seed oil sits near the front of the list with palm kernel oil behind it, and niacinamide and rice extract are on the same list. It goes over the whole evening routine, in a layer generous enough to feel, and it comes off with water in the morning. Skin that looks dry and dull on waking is the case this answers. Two or three nights a week, or nightly through a cold, dry stretch.
How to use
- Use the Ultimate Nourishing Rice Overnight Spa Mask as the last step of the evening, over your moisturizer.
- A generous layer over the face and neck, patted rather than rubbed so it sits evenly on the surface.
- Everything else goes on first and nothing goes over it. Rinse or wipe it away in the morning.
- Two or three nights a week. Do not use it on the same night as a peel or an acid; give the skin a plain evening instead.
COSRX Ultimate Nourishing Rice Overnight Spa Mask
Is rice really the main ingredient in this mask, given the name?
Rice extract sits eleventh on the ingredient list, well behind sunflower seed oil in third place and niacinamide in fifth. The formula is genuinely oil-forward rather than rice-forward by ingredient order, even though rice is the name the product is sold under.
Is this mask too heavy for oily or combination skin?
Sunflower seed oil, palm kernel oil, and palm oil all appear in the first half of the list, which makes this a richer, more emollient formula than a typical overnight mask. Oily skin that reacts to heavier oils may prefer to use it only occasionally or on drier areas of the face rather than the full face nightly.
How is niacinamide positioned in this formula?
Niacinamide is fifth on the ingredient list, after the base oils and glycerin but ahead of the majority of the formula's other ingredients. That position indicates a meaningful rather than trace inclusion, working alongside the emollient oils rather than as the formula's sole focus.
Can this be used every night as a regular moisturizer, or is it meant occasionally?
The rich oil-forward base and the overnight spa mask framing suggest this is built for a periodic, more intensive step rather than a nightly moisturizer replacement, though the ingredient list itself contains nothing that would make daily use unsafe. Anyone using it nightly should watch for a heavier feel than they expect from a standard cream and adjust frequency accordingly.
Does this mask contain any fragrance?
No parfum or fragrance ingredient appears anywhere on the list. Any scent would come from the natural oils and extracts themselves, primarily the sunflower seed oil and rice extract, rather than an added fragrance compound.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (24): Water, Butylene Glycol, Helianthus Annuus (Sunflower) Seed Oil, Glycerin, Niacinamide, Betaine, Cetearyl Olivate, 1,2-Hexanediol, Dimethicone, Sorbitan Olivate, Oryza Sativa (Rice) Extract, Elaeis Guineensis (Palm) Kernel Oil, Cetearyl Alcohol, Ethylhexylglycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ethyl Hexanediol, Elaeis Guineensis (Palm) Oil, Carbomer, Arginine, Xanthan Gum, Allantoin, Sorbitan Isostearate, Polysorbate 60, Tocopherol
Ingredient list read from cosrx.com on 18 August 2026.
24 of 24 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.
- 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.
- 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.
- 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.
- Cetearyl Olivate emulsifier
- Cetearyl Olivate is the water-loving half of the olive-derived emulsifier pair. With sorbitan olivate it builds emulsions whose lipid profile is close to skin's own.
- 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.
- Dimethicone silicone
- Dimethicone is the most used cosmetic silicone. It forms a breathable film that smooths the surface, slows water leaving skin, and gives the slip that makes a primer or cream feel silky. It is inert and does not penetrate.
- Sorbitan Olivate emulsifier
- Sorbitan Olivate is an olive-derived emulsifier, the oil-loving half of the pair sold as Olivem. It holds oil into water and leaves a light, non-waxy feel.
- Oryza Sativa (Rice) Extract plant extract
- Rice Extract is the anchor of the Korean rice-skincare category. It carries starches, amino acids and ferulic acid, and it is used for the look of dullness and for a soft, blurred finish.
- Elaeis Guineensis (Palm) Kernel Oil emollient
- Palm kernel oil, high in lauric acid and solid at room temperature. It gives balms and cleansing bases their body.
12 more explained
- 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.
- 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.
- Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer thickener
- This is the thickener behind most gel-cream textures. It builds a soft, bouncy gel that collapses to a light fluid as it is rubbed in.
- Ethyl Hexanediol humectant
- Ethyl Hexanediol is a glycol that hydrates and makes a formula less hospitable to microbes, the same double role 1,2-hexanediol plays.
- Elaeis Guineensis (Palm) Oil emollient
- Palm Oil is a rich emollient high in palmitic and oleic acids. In skincare it is more often a source material for esters and emulsifiers than an ingredient on its own.
- 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.
- 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.
- Allantoin active
- Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
- Sorbitan Isostearate emulsifier
- Sorbitan Isostearate is a mild emulsifier that holds water into oil, the direction a cleansing balm or an oil-based cream needs.
- Polysorbate 60 emulsifier
- Polysorbate 60 is a water-loving emulsifier used with a fatty co-emulsifier to build stable lotions and creams.
- 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.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809416470726
- Made in
- Republic of Korea
- Category
- Mask
- Actives
- Allantoin, Niacinamide, Rice Extract
- 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.
Key benefits
- Sunflower seed oil opens the ingredient list.
- Niacinamide sits in the top five of the list.
- Rice extract, the ingredient behind the name, is on the list.
- Cetearyl olivate and palm-derived emollients round out the overnight cushion.
Inside the formula
Inside the formula
Reviews
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COSRX Ultimate Nourishing Rice Overnight Spa Mask
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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COSRX, Korean-market original
Nourishing Rice overnight spa mask, with Niacinamide.
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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