Absorption spectra and spectra of time-resolved and stationary photoluminescence (PL) measured at low and room temperatures have been. investigated for the water-soluble anal water-insoluble forms of a melanin pigment, as well as melanin extracted from human hairs whose color is defined by the melanin content. The results obtained can. be explained by a complexity of the melanin structure which has, probably, conjugated linear parts and clustered parts with different physical properties.