Nah, I didn't say that - I almost agree w everything that is being said by you and Ikarus. The thing is I can't even afford muscle loss, for I'm hitting gym for as much as 3+ hours. Just yesterday, my trainers were shocked; and all of those 3 had something to ask and tell me about my progress and the time I was spending there.
As the cliché goes, 10mg have given you gyno, it may be agnostic on me in that regard.
So, even if lower concentration doesn't work that well, my solution would already have minoxidil and finasteride working.
On a diff note, I read a study today which said that tretinoin expresses sulfotransferase enzymes.