Hair color is produced in the pigment cells (melanocytes) in the bulb-shaped hair root when new hair cells are formed. Two different types of pigments are known: the yellow to reddish-brown pheomelanine, which produces blonde, or redheads and the brownishblack eumelanine of dark brown and black hair colors. All shades of hair color are based on these two pigments. Hair starts to turn gray once the pigment-producing melanocytes cease producing and become fewer in number. “Gray hair” is a mixture of normal colored hair and colorless hair. The degree of gray depends on the ratio of normal colored hair to colorless. During this phase, and if subjected to intense sun, hair can get a yellowish, neglected look.