COSRX Ultimate Nourishing Rice Overnight Spa Mask for skin with dark spots

How to apply

Questions and answers

What the research says

• A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.

  Clinical, Cosmetic and Investigational Dermatology, 2017

• Daily application of a cream containing niosomes loaded with purple glutinous rice extract in 20 human volunteers for 28 days resulted in a significant decrease in melanin index and skin roughness by -14.05% and -9.95%, and increases in skin hydration and elastic recovery by +48.73% and +35.98% compared to initial values.

  International Journal of Cosmetic Science, 2020

• Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.

  The British Journal of Dermatology, 2002

• The iontophoretic delivery of hyaluronic acid nanogel-loaded Saccharomyces/Rice Ferment Filtrate significantly reduced advanced glycation end products and mitigated skin stiffening in an ex vivo skin tissue glycation model.

  International Journal of Nanomedicine, 2025

• Red rice extract suppressed UVB-induced inflammation and skin aging in human skin fibroblasts by inhibiting the MAPK signaling pathway, leading to decreased NF-kappa B and AP-1 activation, reduced ECM degradation, and increased ECM synthesis compared to UVB-irradiated controls.

  Natural Product Communications, 2016

• Aspergillus oryzae-fermented broken rice and brewers' rice water extracts inhibit photoaging in UV-irradiated human fibroblasts and co-cultured keratinocytes by downregulating MMP-1, inhibiting elastase, enhancing collagen formation, upregulating elastin gene expression, and lowering pro-inflammatory cytokines.

  Cellular and Molecular Biology, 2023

• Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin.

  Journal of Cosmetic Dermatology, 2021

• Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women.

  The Journal of Investigative Dermatology, 2008

• Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging.

  Dermatologic Surgery, 2005

• The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol.

  Journal of Cosmetic Dermatology, 2020

• Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant.

  International Journal of Cosmetic Science, 2001

• Niacinamide/glycerin body moisturizers provided better rapid and prolonged improvement of cosmetic xerosis through functional improvement of stratum corneum barrier function compared to no treatment and conventional moisturizers in female subjects.

  Journal of Drugs in Dermatology, 2012

• Wearing an N95 mask alone compared to using dimethicone cream or hydrocolloid dressing caused more adverse skin reactions among 73 military health care workers, with no significant differences in fit test failure rates between groups.

  Military Medicine, 2024

• Treatment with a moisturizer containing dimethicone and glycerine increased epidermal thickness by 0.019 mm, improved barrier function by decreasing transepidermal water loss by 13%, decreased melanin intensity, and induced keratins 6 and 16 in fifteen women with moderately photoaged forearms.

  Clinical and Experimental Dermatology, 2007

• Externally applied substances such as ceramides, hyaluronic acid, licorice extracts, dimethicone, petrolatum, and paraffin wax treat skin disease resulting from damage to the skin barrier.

  Clinics in Dermatology, 2012

Ingredients

Rice Extract, Butylene Glycol, Glycerin, Helianthus Annuus Seed Oil Sunflower Seed Oil, Betaine, Niacinamide, Dimethicone, 1,2-Hexanediol, Cetearyl Olivate, Sorbitan Olivate, Palm Oil, Palm Kernel Oil, Hydroxyethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, Ethylhexylglycerin, Arginine, Carbomer, Allantoin, Xanthan Gum

Behind this fit score

Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.