Melanin cell is even the base cell layer of skin of ground consist in, form a cell to cuticular cutin through releasing melanin, decide everybody the depth of color of skin.

• 黑色素细胞均匀地存在于表皮的基底细胞层，通过释放黑色素至表皮的角质形成细胞，决定每个人肤色的深浅。