Certain genes can be switched off to prevent melanocytes from maturing.

某些基因可被关闭防止黑素细胞成熟。

The melanocytes make the pigment, which is then packed into small packets of pigment called melanosomes.

黑素细胞制造色素，后将其包装成称为黑素体的小包色素。

How long your melanocytes last—and therefore when you “go gray”—is mostly determined by your genetics.

你的黑素细胞能持续多——你何时“变白” ——主要取决于你的基因。

Each hair gets its color from melanin, a pigment made by specialized cells called melanocytes in hair follicles.

每根头发的颜色都来自黑色素， 黑色素是一种由毛囊中称为黑素细胞的特殊细胞制成的色素。