Abstract
As an agri-food by-product, the rice bran of pigmented rice, encompassing varieties such as red, black, and purple rice, has garnered increasing attention due to its richness in terms of bioactive compounds. Being mainly composed of the pericarp, aleuron, seed coat, and germ, the brown outer layer of the rice kernel offers potential health benefits and has applications in skincare. Human skin serves as the primary barrier against external threats, including pathogens, pollutants, and ultraviolet (UV) radiation. Notably, UV radiation accelerates the aging process and contributes to various skin issues. Recent trends suggest a heightened interest in incorporating pigmented rice into skincare regimens, motivated by its potential to mitigate oxidative stress, inflammation, and pigmentation, which are pivotal factors in skin aging and photodamage. With increasing consumer demand for natural and sustainable ingredients, pigmented rice has emerged as a promising candidate within the skincare and personal care sectors, effectively bridging the gap between nutrition and dermatological health. This review examines the applications of pigmented rice in skincare, with a particular focus on its bioactive components and potential mechanisms of action that contribute to skin health. The unique chemical composition of pigmented rice, which includes compounds such as anthocyanins, flavonoids, phenolic acids, and vitamin E, underlies its antioxidant, anti-inflammatory, and skin-protective properties. Despite the increasing recognition of its benefits, a comprehensive understanding of the underlying mechanisms remains limited, underscoring the necessity for further research to exploit the potential of pigmented rice in skincare applications fully.
Funding Information
  • Shenzhen Science and Technology Program (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • National Natural Science Foundation of China (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • the Warshel Institute for Computational Biology funding from Shenzhen City and Longgang District (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • the Shenzhen-Hong Kong cooperation zone for technology and innovation (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • the Guangdong Young Scholar Development Fund of Shenzhen Ganghong Group Co., Ltd. (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • the Phase III Government Matching Fund of Shenzhen Ganghong Group Co., Ltd. (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • Guangdong S&T Programme (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • 2023 The Second Affiliated Hospital of the Chinese University of Hong Kong, Shenzhen Joint Fund Project (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • CUHK (SZ) HOMEY HEALTH Microbiome and EndoMetabolic Digital Health Research Center (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)
  • CUHK (SZ) GeneBioHealth Advanced Molecular Diagnostics Laboratory (JCYJ20220530143615035, 32070674, LGKCSDPT2024001, HZQB-KCZYB-2020056, P2-2022-HDH-001-A, 2021E0005, 2022E0035, 2023E0012, 2024A0505050001, 2024A0505050002, HUUF-MS-202308, HUUF-MS-202309, 2024E0049, 2024E0088)

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