
COSRX Ultimate Nourishing Rice Overnight Spa Mask
Product summary
"COSRX - Ultimate Nourishing Rice Overnight Spa Mask" is effective for: Anti-inflammatory, Evens skin tone, Moisturizing, Anti-blemish and Anti-aging
Ingredient callouts
- A good concentration of Niacinamide (1.90% - 2.90%). 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 (arginine 0.15% - 0.60%, betaine 2.70% - 4.00% and glycerin 4.10% - 6.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
What our users say
Based on 1 review 0% recommend this product- When it comes to comedogenicity, the reviewer believes that it clogs pores.
Price
The product retails from 16.15£ up to 23.00£ in the United Kingdom, from 10.99$ up to 23.00$ in the United States, from 17.50A$ up to 31.20A$ in Australia and for 24.00CA$ in Canada.
For a detailed price comparison: click here.
Benefits
Promise: Anti-blemish
What does the product description say?
5% pure vitamin C which attacks pigmentation and lightens brown spots and acne scars.
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.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
niacinamide | HIGH | ||
allantoin | LOW |
Promise: Evens skin tone
What does the product description say?
Formulated with 65% rice extract, this sleeping mask intensely hydrates and brightens skin to give you a fresh and even complexion.
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.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
niacinamide | HIGH |
Promise: Moisturizing
What does the product description say?
Can also be used as a moisturizing cream.
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
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
betaine | HIGH | ||
glycerin | HIGH | ||
helianthus annuus seed oil | HIGH |
Other benefit: Anti-aging
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.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
niacinamide | HIGH |
Honesty check
How honest is this product?
Promise | Can it deliver? |
---|---|
Moisturizing | |
Evens skin tone | |
Anti-blemish |
Buy now
We receive a small commission for purchases made through these links at no cost for you. Thank you for your support! Learn more
US Retailers
UK Retailers
AU Retailers
GB Retailers
Potential irritants

Ingredient | Irritancy | Skin Benefit |
---|---|---|
ethyl hexanediol | ||
1,2-hexanediol | ||
ethylhexylglycerin |
User reviews (2)
Similar products & dupes
COSRX - Ultimate Nourishing Rice Overnight Spa Mask | Paula's choice - Radiance Renewal Mask | YADAH - Daily Vegi Mask- Kimchi | BONAJOUR - Extreme Moisture Mask | A'PIEU - Madecassoside Sleeping Mask | Miss Spa - Rich Face Illuminating Crème Mask | Dr. Jart+ - Cryo Rubber Mask with Soothing Allantoin | Earth Therapeutics - Yuzu Overnight Moisture Mask | Manyo - Bifida Biome Deep Sleeping Mask | ETUDE - Sake Brightening Bio-Cellulose Mask | Thank You Farmer - Miracle Age Repair Cotton Mask x 5 | |
Price | |||||||||||
WIMJ similarity score | 85% | 85% | 85% | 83% | 83% | 80% | 79% | 79% | 79% | 79% | |
Key ingredients |
| Common:
Other:
| Common:
Other:
| Common:
Other: | Common:
Other:
| Common:
Other: | Common:
Other:
| Common:
Other:
| Common:
Other:
| Common:
Other:
| Common:
Other:
|
Irritancy | ![]() IRRITANCY
LOW
| ![]() IRRITANCY
LOW
| ![]() IRRITANCY
LOW
| ![]() IRRITANCY
LOW
| ![]() IRRITANCY
LOW
| ![]() IRRITANCY
LOW
| ![]() IRRITANCY
HIGH
| ![]() IRRITANCY
HIGH
| ![]() IRRITANCY
MEDIUM
| ![]() IRRITANCY
MEDIUM
| ![]() IRRITANCY
HIGH
|
Potential Irritants |
|
|
|
|
|
|
|
|
|
|
|
All ingredients |
|
|
|
|
|
|
|
|
|
|
|
Ingredients & concentrations
- niacinamide
- arginine
- betaine
- dimethicone
- glycerin
- Sunflower seed oil
- +2 more
Ingredient | Estimated concentration |
---|---|
22% - 33% | |
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 | |
5% - 7.6% | |
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 | |
4.1% - 6.2% | |
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant | |
3.9% - 5.9% | |
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 | |
2.7% - 4% | |
Helps attract water to the upper layer of the skin and improves the product texture | |
1.9% - 2.9% | |
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 | |
0.55% - 1.25% | |
A preservative | |
1.3% - 1.9% | |
Helps oil and water mix together | |
1.2% - 1.9% | |
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 | |
0.85% - 1.25% | |
Helps oil and water mix together | |
0.55% - 1.3% | |
Helps soften the upper layer of the skin | |
0.55% - 1.3% | |
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture | |
0.4% - 0.95% | |
A preservative | |
0.35% - 0.8% | |
A gelling agent that thickens the product consistency and leaves the skin with a velvety finish | |
0.3% - 0.7% | |
Used to dissolve other ingredients. Might be irritating | |
0.35% - 0.85% | |
Helps soften the upper layer of the skin | |
0.15% - 0.6% | |
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 | |
0.15% - 0.55% | |
Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations | |
0.1% - 0.4% | |
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated | |
0.1% - 0.4% | |
Used to create a thicker product consistency | |
0.1% - 0.35% | |
Helps oil and water mix together | |
0.1% - 0.35% | |
Helps oil and water mix together | |
0.05% - 0.3% | |
Plain old water | |
Show more |
Sources
- Antioxidant and Anti-Inflammatory Properties of Anthocyanins Extracted from Oryza sativa L. in Primary Dermal Fibroblasts
- Rice antioxidants: phenolic acids, flavonoids, anthocyanins, proanthocyanidins, tocopherols, tocotrienols, c-oryzanol, and phytic acid
- Glycerol and the skin: holistic approach to its origin and functions
- Effect of Olive and Sunflower Seed Oil on the Adult Skin Barrier: Implications for Neonatal Skin Care
- Topically Applied Sunflower Seed Oil Prevents Invasive Bacterial Infections in Preterm Infants in Egypt
- Effect of topically applied lipids on surfactant-irritated skin
- Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Genetic Architecture of Palm Oil Fatty Acid Composition in Cultivated Oil Palm (Elaeis guineensis Jacq.) Compared to Its Wild Relative E. oleifera (H.B.K) Cortés
- Nutrient composition of Nigerian palm kernel from the dura and tenera varieties of the oil palm (Elaeis guineensis)
- Final Report on the Safety Assessment of Ethyl Hexanediol