Yes and yes.
I thought they found this out to beand bill phillips refused to accept it and kept on selling it and everybody said he was a douche for that?
Actually it was deemed to be a bunk supplement....but more research was done on and it showed that it has more benefit if you take it long term. So the longer you take it the more benefit you'll see out of it. IIRC, the daily dose was 3-4g.
I am currently runningat 3g per day in either eas reload or armor, I started taking it for basically wound healing, since that is what we use it for at the hospital, in the form of juven. I believe that it has accelerated the healing of a nagging lower ab injury that wouldnt improve for months. I have been taking the for roughly a month 1/2, improvement is vast! As for performance increases, cant really say much.