I started minoxidil on the same day I started using the dermapen (March 2018). I had used minoxidil for 2 years before but stopped because I was a non-responder. It's impossible for me to say if minoxidil is doing everything or nothing.
Are you still only applying 1 ml of minoxidil twice a day? If so, how do you cover your whole scalp with just 1 ml?