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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 (very light blond), B to E (light blond), F to L (), M to O (dark blond), P to T (light brown to brown), U to Y (dark brown to black) and Roman numerals I to IV and V to VI (red-blond).
Black hair can come in a variety of textures, just as any hair color. Generally, the East Asian, Central Asian and Native American population has straight hair with a very thick cuticle layer [ 5 ] and South Asians have thick, wavy or curly hair , [ 6 ] while the general hair type seen in black African hair is thick, curly and dense with more ...
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.
Brown hair, also referred to as brunette (when female), is the second-most common human hair color, after black hair. It varies from light brown to dark hair. It is characterized by higher levels of the dark pigment eumelanin and lower levels of the pale pigment pheomelanin .
The granny hair trend (also known as Granny gray) is a new phenomenon of young women coloring their hair to different shades of gray.It emerged in the 2010s. For centuries, people have tried to hide graying hair with methods like dyeing, coloring and henna since gray hair appears most often on older adults and aging is stigmatized in most Western societies. [1]
This overproduction causes depletion of the melanocyte stem cells which are required to produce melanin, the pigment responsible for hair color. [ 2 ] Premature greying of hair has been observed with greater frequency among certain families, suggesting a familial predisposition for the condition.
Papuan women with kinky hair. Kinky hair is a uniquely human characteristic, as most mammals have straight hair, including the earliest hominids. [11] Robbins (2012) suggests that kinky hair may have initially evolved because of an adaptive need amongst humans' early hominid ancestors for protection against the intense UV radiation of the sun in Africa.