a word on the hypothesis that micro needling facilitates the action of minoxidil which does not / stops working for some. given it can take 2-3 months for minoxidil to work in responders I wonder if one way to predict / monitor success early on is to monitor blood pressure. my bp is around 125/80. During 'minoxidil is working' phase a few years ago it was routinely 90/60. now that minoxidil has long ceased to be effective despite x2 daly application, my bp is back to 125/80.