where are pigments found in hair
There is two main pigments found in human hair: Eumelanin has an oval or elliptical shape, which gives color to brown or black hair and is dark pigment. The higher the concentration of Eumelanin the darker the hair. Pheomelanin is what produces the color in blonde or red hair.
The hair follicle contains oil-secreting glands, which make the hair shiny. Stress and illness and lack of proper nutrients diminish secretion of oil and pigments causing graying of hair. The hair is considered as a tissue which uses the same nutrients of bone, nails and which is formed as bi-product of bone tissue.