COSRX Ultimate Nourishing Rice Overnight Spa Mask Tube

COSRX Ultimate Nourishing Rice Overnight Spa Mask Tube

Efficacy100/100IrritancyLow

Works for

Moisturizing
Niacinamide, Glycerin + 10 more
Works well
What the product description says
“COSRX Ultimate Nourishing Rice Spa Overnight Mask is formulated with 65% rice extract This sleeping mask not only intensely hydrates but also brightens the skin to give you a fresh and even complexion.”
Source: Glowsecret

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: arginine, betaine.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: arginine, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.9–2.8%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.2–6.3%
Helianthus annuus seed oilKey active· Emollient, OcclusiveEffect: HighA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~4–6%
BetaineKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and improves the product texture~2.7–4%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~1.8–2.6%
Elaeis guineensis oilKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~0.6–1.35%
Elaeis guineensis kernel oilKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~0.5–1.2%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~0.45–1.1%
ArginineKey active· Humectant, OcclusiveEffect: HighAn amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin~0.1–0.45%
Oryza sativa extractEffect: LowA grain extract that helps to create a thicker product consistency. It might have some anti-oxidant properties and help attract water to the upper layer of the skin~22–33%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~5.1–7.7%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.1–0.4%
Evens skin tone
Niacinamide
Works well
What the product description says
“COSRX Ultimate Nourishing Rice Spa Overnight Mask is formulated with 65% rice extract This sleeping mask not only intensely hydrates but also brightens the skin to give you a fresh and even complexion.”
Source: Glowsecret

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.9–2.8%
Anti-aging
Not advertised by the brand · Niacinamide
Works well

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.9–2.8%
Anti-blemish
Not advertised by the brand · Niacinamide, Allantoin
Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.9–2.8%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.1–0.4%

Can it cause trouble?

Irritancy
3 flagged ingredients
Low risk
We flag 3 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
1,2-hexanediolA preservativeMedium~0.5–1.15%est.
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymerA gelling agent that thickens the product consistency and leaves the skin with a velvety finishMedium~0.35–0.85%est.
EthylhexylglycerinA preservativeMedium~0.15–0.6%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~0.45–1.1%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Oryza sativa extract~22–33%
Formula
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

A grain extract that helps to create a thicker product consistency. It might have some anti-oxidant properties and help attract water to the upper layer of the skin

More about Oryza sativa extract
Butylene glycol~5.1–7.7%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Glycerin~4.2–6.3%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Helianthus annuus seed oil~4–6%
Key active
Irritation risk
Low
Works for
Moisturizing

A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function

More about Helianthus annuus seed oil
Betaine~2.7–4%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and improves the product texture

More about Betaine
Niacinamide~1.9–2.8%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Anti-blemishMoisturizingAnti-agingEvens skin toneReduces irritationAnti-inflammatoryAntibacterialReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Dimethicone~1.8–2.6%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
1,2-hexanediol~0.5–1.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Cetearyl olivate~1–1.6%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Cetearyl olivate
Sorbitan olivate~0.85–1.25%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Sorbitan olivate
Elaeis guineensis oil~0.6–1.35%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Elaeis guineensis oil
Elaeis guineensis kernel oil~0.5–1.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Elaeis guineensis kernel oil
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer~0.35–0.85%
Irritant · medium
Irritation risk
Medium

A gelling agent that thickens the product consistency and leaves the skin with a velvety finish

More about Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer
Cetearyl alcohol~0.45–1.1%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Ethylhexylglycerin~0.15–0.6%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Arginine~0.1–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin

More about Arginine
Carbomer~0.1–0.35%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Allantoin~0.1–0.4%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces rednessAnti-blemishReduces irritationExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Xanthan gum~0.05–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Ingredient list view

Oryza sativa extract, Butylene glycol, Glycerin, Helianthus annuus seed oil, Betaine, Niacinamide, Dimethicone, 1,2-hexanediol, Cetearyl olivate, Sorbitan olivate, Elaeis guineensis oil, Elaeis guineensis kernel oil, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Cetearyl alcohol, Ethylhexylglycerin, Arginine, Carbomer, Allantoin, Xanthan gum

Compare prices

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🌐 Glowsecret (KE)60 ml
KSH 1,799.99
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
COSRXUltimate Nourishing Rice Overnight Spa Mask TubeYOUR PRODUCTYADAHDaily Vegi Mask- KimchiP.CALMBalancing Mask PackBonjourExtreme Moisture Mask
Match—86%86%85%
Price——$6.68$1.00
Shared key ingredients—3 of 63 of 63 of 6
Key difference—PanthenolSalicylic AcidAdenosine
Irritancy Low Low Low Low
Drying alcohol————
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Product summary

"COSRX - Ultimate Nourishing Rice Overnight Spa Mask Tube" is effective for: Anti-aging, Moisturizing, Evens skin tone and Anti-blemish

Ingredient callouts

  • A good concentration of Niacinamide (1.90% - 2.80%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
  • Humectants (glycerin 4.20% - 6.30%, betaine 2.70% - 4.00% and arginine 0.10% - 0.45%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails for 1799.99KSH in Kenya.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 15 studies and safety reviews.

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COSRX Ultimate Nourishing Rice Overnight Spa Mask Tube
COSRXUltimate Nourishing Rice Overnight Spa Mask Tube

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.