Diversity of human hair pigmentation as studied by chemical analysis of eumelanin and pheomelanin

@article{Ito2011DiversityOH,
  title={Diversity of human hair pigmentation as studied by chemical analysis of eumelanin and pheomelanin},
  author={Shosuke Ito and Kazumasa Wakamatsu},
  journal={Journal of the European Academy of Dermatology and Venereology},
  year={2011},
  volume={25}
}
  • S. Ito, K. Wakamatsu
  • Published 1 December 2011
  • Biology, Medicine
  • Journal of the European Academy of Dermatology and Venereology
Hair colour is one of the most conspicuous phenotypes in humans, ranging from black, brown, blond to red. [...] Key Method Pheomelanin can also be analysed as 4-amino-3-hydroxyphenylalanine (4-AHP) after hydroiodic acid hydrolysis. Using those methods, we evaluated the contents of eumelanin and pheomelanin (the 'chemical' phenotype) in human hairs of black, dark brown, brown, light brown, blond and red colour (the 'visual' phenotype). Eumelanin contents decrease in that order, with a trace but constant level of…Expand
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