Fig. (1) The melanin levels was determined in patients with vitiligo: a) in vitiligo patches (1 c.u.) and healthy skin (13 c.u.) on the eyelids; b) in vitiligo patches (3 c.u.) and healthy skin (7 c.u.) on the neck; c) in vitiligo patches on the lips (5 c.u.), shin (9 c.u.) and healthy skin (11 c.u.); d) in vitiligo patches (1 c.u.) and healthy skin (6 c.u.) on the buttocks.