头发与头皮护理的科学基础(Ⅶ)——头发灰白的原因及变黑的方法

Scientific foundations of hair and scalp care(Ⅶ)The causes of hair graying and the methods to make white hair turn black

随着头发灰白年轻化的趋势发展,头发颜色日益成为大众关注的重点。然而头发灰白的确切原因目前还不清楚,在此,本讲座从黑色素(melanin)的合成路径出发,回顾了以往关于头发灰白机制的研究,整理了目前较被认同的两种途径。同时,介绍了天然产物在“白转黑”中的应用潜力,并列举了几种天然黑色物质,如氧化石墨烯、聚多巴胺等在染黑发方面的研究,希望为无毒无危害的染黑剂和促黑产品的开发和应用提供参考。

With the trend of hair graying becoming younger,hair color has increasingly become a focus of public attention.However,currently,the exact cause of hair graying is still unclear.Herein,starting from the synthetic pathway of melanin,previous research on the mechanism of hair graying was reviewed and two recognized pathways were introduced.The application potential of natural products to delay hair graying was also introduced,and several natural black substances such as graphene oxide and polydopamine in the research of hair dying were listed.This review might provide a reference for the development and application of non-toxic and harmless black dyes and hair-graying-prevention products.