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A variety of human hair colors; from top left, clockwise: black, brown, blonde, white, red. Human hair color is the pigmentation of human hair follicles and shafts due to two types of melanin: eumelanin and pheomelanin. Generally, the more melanin present, the darker the hair. Its tone depends on the ratio of black or brown eumelanin to yellow ...
Discrimination. Discrimination against people with red hair is the prejudice, stereotyping and dehumanization of people with naturally red hair, which is the result of a genetic mutation. In contemporary form, it often involves a cultural discrimination against people with red hair. A number of stereotypes exist about people with red hair, many ...
Changes in hair colour typically occur naturally as people age, eventually turning the hair grey and then white. This normally begins in the early to mid-twenties in men and late twenties in women. More than 60 percent of Americans have some grey hair by age 40. The age at which greying begins seems almost entirely due to genetics.
Discrimination. Discrimination based on hair texture, also known as textureism, is a form of social injustice, where afro-textured hair or coarse hair types, and their associated hair styles, are viewed negatively, often perceived as "unprofessional", "unattractive", or "unclean". [ 1][ 2][ 3] This view can lead, for example, to some school ...
African-American hair comes in a range of textures, but the most common hair type is curly with lots of volume. [5] This curly quality is the product of the shape of the hair follicles . [ 5 ] More circular-shaped follicles cause hair to grow straighter, while more curly hair is caused by more elongated, oval-shaped hair follicles. [ 5 ]
Fitzpatrick scale. The Fitzpatrick scale (also Fitzpatrick skin typing test; or Fitzpatrick phototyping scale) is a numerical classification schema for human skin color. It was developed in 1975 by American dermatologist Thomas B. Fitzpatrick as a way to estimate the response of different types of skin to ultraviolet (UV) light. [ 2]
A woman with dyed pink hair. Hair coloring, or hair dyeing, is the practice of changing the color of the hair on humans' heads.The main reasons for this are cosmetic: to cover gray or white hair, to alter hair to create a specific look, to change a color to suit preference or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.
Melanin ( / ˈmɛlənɪn / ⓘ; from Ancient Greek μέλας (mélas) 'black, dark') is a family of biomolecules organized as oligomers or polymers, which among other functions provide the pigments of many organisms. [ 1] Melanin pigments are produced in a specialized group of cells known as melanocytes .