Very dated...but has the information been superseded by anything else proving it wrong?
http://sci-hub.tw/10.1111/1523-1747.ep12721603
SBF is 2.6x lower in Androgenetic Alopecia than controls. There is still plenty of blood flow in Androgenetic Alopecia but it is lower.
The scalp in non-balding has SBF of 10x other sites on the body.
" A high SBF might explain the relatively short duration of topically applied minoxidil"
http://sci-hub.tw/10.1111/1523-1747.ep12721603
SBF is 2.6x lower in Androgenetic Alopecia than controls. There is still plenty of blood flow in Androgenetic Alopecia but it is lower.
The scalp in non-balding has SBF of 10x other sites on the body.
" A high SBF might explain the relatively short duration of topically applied minoxidil"