... age spots and sites of actinic damage which can give rise to esthetic problems (Briganti, 2003; Curto, 1999). Hyperpigmentation usually becomes a big problem as people age because darker spots ... test hypotheses leading to the characterization of proteins of unknown function (Marcotte et al., 1999a, Marcotte 2000, Enright and Ouzounis 2001). Marcotte et al., (1999) found 6,809 potentially ... are reported to have potent anti-tyrosinase activity with almost 20-fold stronger than kojic acid. However, the inhibitory activity of kojic acid is not sufficiently potent or unstable for...