皮肤白不白,主要取决于黑色素细胞合成黑色素的能力。在人的表皮基层细胞间,分布着黑色素细胞,它含有的酪氨酸脢可以将酪氨酸氧化成多醣,中间再经过一系列的代谢过程,最后便可生成黑色素。黑色素生成的多, 皮肤就越黝黑;反之,则皮肤就越白晰。 White skin is not white, mainly depends on the ability of melanocytes to synthesize melanin. In the human epidermal basal cells, the distribution of melanocytes, which contain tyrosine 脢 tyrosine can be oxidized to polysaccharides, the middle and then through a series of metabolic processes, and finally can generate melanin. The more melanin generated, the darker the skin; the other hand, the clearer the skin is.