Human Hair Color
Hair color is the pigmentation of hair follicles due to two types of melanin: eumelanin and pheomelanin. Generally, if more eumelanin is present, the color of the hair is darker; if less eumelanin is present, the hair is lighter. Levels of melanin can vary over time causing a person's hair color to change, and it is possible to have hair follicles of more than one color.
Particular hair colors are associated with ethnic groups. The shades of human hair color are assessed using the Fischer–Saller scale. The Fischer–Saller scale, named after Eugen Fischer and Karl Saller, is used in physical anthropology and medicine to determine the shades of hair color. The scale uses the following designations: A (light blond), B to E (blond), F to L (blond), M to O (dark blond), P to T (brown), U to Y (dark brown/black) and Roman numerals I to IV (red) and V to VI (red blond). See also the Martin–Schultz scale for eye color.
Read more about Human Hair Color: Genetics and Biochemistry of Hair Color, Natural Hair Colors, Hair Coloring
Famous quotes containing the words human, hair and/or color:
“If human beings are immortal, so are animals. If matter has the ability to remember, it also has the ability to think.”
—Franz Grillparzer (1791–1872)
“Your golden hair Margarete
your ashen hair Shulamith.”
—Paul Celan [Paul Antschel] (1920–1970)
“Rain falls into the open eyes of the dead
Again again with its pointless sound
When the moon finds them they are the color of everything”
—William Stanley Merwin (b. 1927)