作为智慧或资历的象征 ,白发是祖父的荣耀 ,也能给染发液经营商带来利润。那么头发是怎样变白的呢 ?头发的变白在于黑素细胞 (毛囊中的一种细胞)的变化。黑素细胞能产生一种血褐素 (即黑色素 )。血褐素的多少决定着头发的颜色。组成头发本身的角质形成细胞能吸收这种血褐素。当 As a symbol of wisdom or seniority, white hair is a grandfather’s glory, but also to the hair dye liquidity business profiteer. How does the hair turn white? The whiteness of the hair is the change in melanocytes, a cell in the hair follicle. Melanocytes produce a type of heme (ie, melanin). The number of brown spots determines the color of hair. The keratinocytes that make up the hair itself absorb this heme. when