First look in the eyes of your supplier for any lack of sincerity....he or she will look down or too aggressive toward you.....trying to make you believe that he or she has the magic pills........secondly if the price is right...or too right.....or overboard.....be suspicious......if you feel confident....go for it...then go for a testosterone measurement about 4 weeks after the last supplement ingestion.....
in the meantime pls pm me......
rocco