hi my girlfriend just started taking arsenal-x she got it from gnc..its made by nutritional delivery system(NDS)..it has 100mcg of vitamen b12, a proprioty blend 887mg of (paullinia cupana, theobroma cacao(theo bromen) caffene , yohimbe and a bunch of other crap...just want to know what you guys think of a girl taking this??safe/unsafe, does it work or no?