Flash
Lost in speed
Dude, I'm not saying that Estrogen causes lighter hair colour. I am saying that they have higher estrogen than other women in general, making them...well...extra womanly . Most men know this genetically, but not consciously.
Estrogen is female sex hormone, for the record.
Am not trying to offend you, but your previous post means 'Blonde hair is a sign of higher Estrogen levels'. Read it again!
That's why i said Eumelanin.