"There are two types of pigment (melanin) produced by these melanocytes, eumelanin, which creates dark hair pigments that make brown or black hair, and pheomelanin, which produces red or yellow hues." The many varieties of hair color are created with different proportions of eumelanin and pheomelanin, which are determined by genetics, she explains
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Wang Z, Li D, Zhou G, Xu Z, Wang X, Tan S, et al
Results Human BBB co-culture model In this study, a stem cell-derived human BBB model was used
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