A black pigment found in the pigment-bearing cells of the skin (particularly in the skin of the negro), in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin.
The pigment which naturally colors the hair and skin.
A substance found in the skin that protects the skin from the sun and gives the skin its colour.
Substance that gives hair and skin its colour.