I tried twice a days for some weeks but sometimes i get a migraine and plus using them in the morning did not hold my hairs like pomades. So only before bedtime after shower for a 7 hr absorption.
As for using 5 days a week, i believe in the theory that way dermarolling play its roll is to...
Regimen: 5% rogaine foam once a day on Mon Wed Thur Fri Sun, 1.5 mm dermaroller on Tue and Sat, daily biotin pill, Aloe vera based shampoos.
Time interval between first observation and the latest observation: 65 days.
Daily activities: 10 hr work time as assistant editor, lifts 4 time a week...