Arginine Powder

has anyone ever tried Arginine powder mix?? i have some. it was given to me by a friend. what all does it do?? :unsure:

Big J:lift:

heres a description on it best i could find
http://www.g*c.com/health_notes/Supp/Arginine.htm
i add'd the * in the url cause i did not want to get in trouble
for posting that url hehehe
if it was free take it its not like its gonna kill ya ( ooh i hope im not wrong ) and you did not pay for it what a good way to test a product if it turns out to be crap