should i use minoxidil at 15

TonyDr said
Theorically you can, as long as you haven't any actual or underlying heart issues and blood pressure issues (too low)

Also don't apply the recommended 1ml obvs

Are you suggesting more?
I’ve been using 1ml a night for my hairline along with oral fin.
( I’m wondering if I’m doing this wrong, hair is the main thing that I am uneducated it and the main thing I’m worried about)