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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 or red pheomelanin.
- Brown hair - Wikipedia
Brown hair, also referred to as brunette (when female) or...
- Brown hair - Wikipedia
Brown hair, also referred to as brunette (when female) or brunet (when male), 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 .
Human hair contains melanin which provides dark coloration and protection from UV radiation. Human hair can absorb and emit light across a wide range of wavelengths. The image above depicts melanin autofluorescence at 365-400 nm excitation from a strand of dark brown human hair. A woman with dark blonde hair.
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 or red pheomelanin.
Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from one's biological parents), exposure to the sun, disorders, or some combination thereof.
Brown hair, also called brunette hair, is the second most common hair color. It varies from light brown to black. People with brown or black hair are known as brunettes. Brown hair is common in Indo European and West Eurasian people.
According to one theory, at least two gene pairs control human hair color. One phenotype (brown/blond) has a dominant brown allele and a recessive blond allele. A person with a brown allele will have brown hair; a person with no brown alleles will be blond.
