Core Viewpoint - The article discusses the causes of premature graying of hair and the potential for reversing this condition, emphasizing the importance of scalp health and the effectiveness of a specific hair care product developed by a team from Peking University [6][10][30]. Causes of Graying Hair - Hair color is determined by melanocytes in hair follicles, which produce melanin. Loss of function or number of these cells leads to gray or white hair [6]. - Two main categories of causes for the loss of melanocyte function are identified: pathological (e.g., follicle atrophy, chronic scalp inflammation) and physiological (e.g., genetic factors, aging) [7][10]. - A study of 467 individuals with premature graying found no significant correlation between premature graying and factors such as obesity, alcohol consumption, coffee intake, stress, or emotional health [10][12]. Potential for Reversing Graying - Hair that turns gray due to pathological causes may regain color if the underlying issues are addressed, while hair that grays due to natural aging cannot be reversed [15][16]. - Improving scalp microenvironment and reducing oxidative damage can help slow down the aging process of hair follicles [17][20]. Importance of Scalp Care - The health of the scalp is crucial for the condition of hair follicles and hair. Proper scalp care is essential for effective hair care products [20][22]. - Many commercial shampoos only clean hair without adequately addressing scalp health, which is vital for nourishing hair follicles [23][24]. Product Introduction - The article introduces a hair care product, 臻玉露Rebuild生姜氨基酸润养洗发露, developed by a Peking University team, which focuses on deep cleaning the scalp and nourishing hair follicles [26][30]. - This product utilizes a patented formula that combines HAP-Rebuild repair factors with high concentrations of natural extracts like ginger juice, ginseng, and other herbal ingredients [30][50]. Product Efficacy - The product claims to effectively control oil (87.88%), reduce dandruff (81.82%), and alleviate itching (81.82%) based on third-party testing [31]. - After four weeks of use, participants reported significant improvements in scalp health, including reduced oiliness and dandruff, and increased hair volume and smoothness [82][107]. Pricing and Offers - The product is priced at 98 yuan per bottle, with promotional offers including a free trial size with each purchase and a full refund policy if not satisfied [44][136].

Core Insights - The article discusses the causes of hair turning white and the potential for it to return to black, emphasizing that while dyeing is an option, biological factors primarily dictate hair color changes [6][10][14] - It highlights the importance of scalp health in maintaining hair quality and suggests that many commercial shampoos fail to adequately care for the scalp [20][22][24] - A new product, 臻玉露Rebuild生姜氨基酸润养洗发露, is introduced as a solution for scalp and hair care, featuring patented technology and natural ingredients [26][30][52] Causes of Hair Turning White - Hair color is determined by melanocytes in hair follicles, which produce melanin [6] - Two main categories of causes for the loss of hair color are identified: pathological (e.g., follicle atrophy, chronic scalp inflammation) and physiological (e.g., genetics, aging) [7][10][14] - A study of 467 individuals with premature graying found no significant correlation between premature graying and factors like obesity, alcohol consumption, or stress [10][12] Importance of Scalp Health - The scalp is described as the "soil" for hair follicles, and its condition directly affects hair health [18][20] - Many shampoos only clean hair surface without addressing scalp health, which is crucial for nourishing hair follicles [22][24] - The article emphasizes the need for products that can deeply cleanse and nourish the scalp [30][34] Product Introduction - The 臻玉露Rebuild生姜氨基酸润养洗发露 is developed by a team from Peking University, utilizing patented technology to address scalp and hair care challenges [26][28] - The product contains 30% fresh ginger juice and various herbal extracts, designed to deeply cleanse the scalp and nourish hair follicles [30][39][52] - Third-party testing shows significant effectiveness in controlling oil, reducing dandruff, and improving scalp health [31][34][81] Efficacy and User Feedback - Users report improvements in scalp health, reduced itchiness, and increased hair volume after using the product [41][43][109] - The product is marketed at a promotional price of 98 yuan per bottle, with a trial offer included [46][138] - The article concludes with a strong endorsement of the product's effectiveness based on user feedback and scientific validation [34][95][106]