Re: What is the purpose of pheomelanin in skin?

On 24 Nov, 21:21, Tim Tyler <seemy...@xxxxxxxxxxxxxx> wrote:
blackhead wrote:
Does Pheomelanin have some sort of influence in the production of
Vitamin D, for example?

Girls have more pheomelanin than boys. Pheomelanin makes you pink.

Girls use red pigments (e.g. in cheeks and lips) for sexual signalling
purposes - so pheomelanin is probably associated with sexual selection.
This idea is consistent with its presence in red hair.

Is this your theory, or is there some academic credibility to it?

Pheomelanin also plays some of the same roles as eumelanin - e.g. see:

``Eumelanin and pheomelanin concentrations in human epidermis before
and after UVB irradiation''

http://www.blackwell-synergy.com/doi/abs/10.1111/j.1600-0749.2005.002...

Thanks, this looks interesting.

__________
|im |yler http://timtyler.org/ t...@xxxxxxxxxxx Remove lock to reply.

Is this your theory, or is there some academic credibility

.

Relevant Pages

  • Re: What is the purpose of pheomelanin in skin?
    ... Girls have more pheomelanin than boys. ... Girls use red pigments for sexual signalling ... Pheomelanin also plays some of the same roles as eumelanin - e.g. see: ...
    (sci.bio.evolution)
  • Re: What is the purpose of pheomelanin in skin?
    ... Girls have more pheomelanin than boys. ... purposes - so pheomelanin is probably associated with sexual selection. ... This idea is consistent with its presence in red hair. ...
    (sci.bio.evolution)
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