dude, you are in a privileged position, your 19 years old, man you have what every guy a bit older than you wants......so much natural test it's coming out your pores for god's sakes. what everyone has already said here, food, that is the best supplement you can have right now. i understand wanting to take a little something to give you an edge (believe me i know) but it's a waste of money. take that $ and put it aside for now, and save it for when supplements or other things might be more effective. or spend it on GOOD, quality food