For those that have achieved a great deal of regrowth or feel they have enough hair but want to increase the thickness, which treatment would be the best i.e. minoxidl, spironolactone, finasteride, etc. I am referring to genuine thickness rather than cosmetic. My hair is quite volatile, whereby, I could have relatively thick hair one day and then it would look and feel quite thin the next thus, going from someone who doesn't really look as if they are losing hair to someone who is.