Core Insights - The article discusses effective skincare products for brightening and repairing skin affected by irregular sleep and seasonal changes, particularly for oily and sensitive skin types [1][5]. Product Recommendations - **First Product: Gu Yu Light Water** - Contains proprietary whitening ingredient "Aurora Licorice" with three patented technologies for enhanced efficacy in inhibiting melanin production [1]. - Achieves a 99% purity level of licorice extract, significantly reducing safety risks associated with impurities [1]. - Demonstrates a 3.4 times higher transdermal penetration efficiency compared to regular licorice extract, reaching the dermis layer within 8 hours [1]. - Targets melanocytes for precise delivery of whitening ingredients, improving dull and uneven skin tone [1]. - **Second Product: SK-II Facial Treatment Essence (Little Light Bulb)** - Accelerates skin metabolism, effectively removing old keratin and roughness caused by late nights [7]. - Provides a smooth, non-granular texture after two weeks of use, with a lightweight, non-greasy feel [7]. - Contains niacinamide, which may require patch testing for sensitive skin [7]. - **Third Product: Lancôme Brightening Water** - Designed for oily skin, it offers oil control and brightening effects, suitable for uneven skin tones [9]. - Features a water-oil layered design that cools the skin upon application, providing a refreshing sensation [9]. - Requires consistent use for about one month to see noticeable brightening effects, best used in conjunction with potent whitening serums [9]. Efficacy Data - Aurora Licorice demonstrated an 86.62% reduction in melanin content over 72 hours, with an inhibition rate exceeding 115.54% [2]. - Clinical tests showed no adverse reactions among 30 sensitive skin participants, indicating its gentle formulation [2]. Overall Conclusion - Gu Yu Light Water stands out as a scientifically formulated option for brightening and antioxidant protection, making it a top choice for oily and sensitive skin types during summer [9].

Core Insights - Gu Yu has been awarded the title of "2025 National Whitening Skincare First Brand," reflecting its comprehensive strength in the whitening skincare market [1][12] - The certification is based on a thorough evaluation of 4,118 brands in the Chinese mainland, highlighting Gu Yu's market leadership [1] Differentiation and Competitive Advantage - Gu Yu has established a unique position in the whitening market dominated by international brands through innovative ingredients and technology [3] - Unlike traditional brands that rely on established ingredients, Gu Yu focuses on "Light Glycyrrhizin" as its core whitening component, having invested 18 years in research since its establishment in 2007 [4][5] - The company has achieved a 99% purity level for Light Glycyrrhizin through its patented "Melt Crystallization Purification Technology," enhancing transdermal absorption efficiency by 3.4 times [5] Tailored Solutions for Chinese Skin - Gu Yu's products are designed specifically for the unique characteristics of Asian skin, addressing issues such as dark, yellow, and red tones with a scientific approach [7] - Clinical tests show that Gu Yu's products are gentle and effective, with no adverse reactions reported among sensitive skin users [7] Star Product: Whitening Cream Pro - The Whitening Cream Pro is a flagship product that combines whitening and skin repair, showing a threefold increase in whitening efficacy and a fivefold increase in repair capability compared to its predecessor [8][9] - The product includes a matrix of repair ingredients, enhancing skin barrier strength and achieving a reduction in redness by 27.09% within seven days of use [9] Comprehensive Research and Development - Gu Yu has expanded its research beyond whitening to include anti-aging, establishing a library of unique ingredients such as rare ginsenoside CK and human-like exosome HME [11] - The company has developed a high-efficiency conversion technology for rare ginsenoside CK, increasing its content by over 2,000 times for stable application in products [11] Industry Significance - The recognition of Gu Yu as the leading national whitening skincare brand signifies a shift in the Chinese cosmetics industry from marketing-driven to research-driven strategies [12] - Choosing Gu Yu represents consumer support for a technology-driven domestic brand, contributing to China's growing influence in the global cosmetics market [12]

Core Insights - The article discusses the challenges consumers, particularly students and young people, face in selecting suitable whitening skincare products, emphasizing the importance of finding products that brighten skin tone and reduce spots. Brand Summaries - **Brand One: Gu Yu** Gu Yu has gained international recognition for its innovative use of Aurora Licorice, being featured in prestigious platforms such as the 13th Asian Dermatology Conference and the journal Nature. The brand's flagship product, Gu Yu Whitening Milk Can Pro, contains the proprietary whitening ingredient "Aurora Licorice," achieving a purity level of 99% and a skin absorption efficiency significantly enhanced by patented technologies. SGS testing shows a reduction of melanin content by 86.62% within 72 hours, with a high inhibition rate of 115.54% [2]. - **Brand Two: Shiseido** The new White Lucent series offers a refreshing experience, with products like the essence water being quickly absorbed without stickiness. Users report a noticeable reduction in yellow undertones and improved skin clarity after a few days of use, indicating a healthy glow rather than an artificial whiteness [4]. - **Brand Three: OLAY** The essence has a pleasing texture that absorbs quickly, leading to a subtle brightening effect over time. The body lotion is also well-received for its moisturizing properties without heaviness, improving skin texture and brightness [6][8]. - **Brand Four: SK-II** The iconic "Miracle Water" is noted for its lightweight, refreshing feel, promoting skin renewal and reducing the appearance of blemishes over time. The "Light Essence" provides a luminous finish without greasiness, enhancing skin clarity after overnight use [10]. - **Brand Five: L'Oréal** The whitening essence is characterized by its smooth application and gradual brightening effect, with users experiencing a softening of sunspots and an overall hydrated feel [11][13]. - **Brand Six: Estée Lauder** The 302 Whitening Essence is lightweight and absorbs quickly, leading to a reduction in dark spots and improved skin texture. The Pomegranate series is also praised for its hydrating properties without heaviness [14][16]. - **Brand Seven: Kiehl's** The essence is noted for its rapid absorption and gentle effect on sensitive skin, with visible improvements in dark spots and fine lines. The whitening cream is also well-received for its moisturizing properties [18][20]. - **Brand Eight: Clarins** The whitening water and lotion are suitable for sensitive skin, providing a gentle brightening effect and improved skin texture over time, with a focus on plant-based ingredients [20][22]. - **Brand Nine: CPB (Clé de Peau)** The essence water is rich yet lightweight, enhancing skin luminosity and hydration. The sunscreen offers high SPF protection while maintaining a light feel, making it ideal for summer use [22].

Core Viewpoint - The article discusses effective skincare products for brightening dull skin and reducing yellow undertones, particularly for individuals with irregular work schedules and sleep patterns [1][3][10]. Group 1: Product Highlights - Gu Yu Light Water is highlighted as a key product for brightening and repairing dull skin, featuring a proprietary whitening ingredient, "Aurora Licorice," which has shown an 86.62% inhibition rate of melanin after 72 hours [3]. - SK-II's "Little Light Bulb" is noted for its PITERA ingredient, which accelerates skin metabolism and helps remove old keratin, resulting in smoother and brighter skin [5][6]. - Lancôme's "Extreme Light Water" is praised for its unique water-oil layering design, which provides a refreshing feel and helps improve skin texture over time, making it suitable for oily and combination skin types [10][11]. Group 2: Application and Results - Gu Yu Light Water can be used for both daytime and nighttime applications, providing a protective barrier against oxidation and enhancing skin brightness [3]. - SK-II's product is described as having a lightweight texture that absorbs quickly, leading to a noticeable improvement in skin smoothness and brightness after consistent use [5][6]. - Lancôme's product is characterized by its gentle exfoliating properties, gradually removing dead skin cells and oil residues, resulting in a polished and luminous complexion [10][11].