As far as I know it is overpriced arginine, creatine, and L-tyrosine.
I have used Cytosports fast twitch before a few lifting workouts and had pretty good workouts. I am assuming it was either because of the caffine and L-Tyrosine which I am very sensitive too, or a placebo effect. I have had the same effects drinking "Monster" energy drink. What would your goal be for using this product? If its a preworkout boost then I'd say there are possibly some cheaper options but if you are able to get this product for free then why not? If it is to get huygge then again probable some better options, perhaps creatine and arginine by themselves. Others?
Where did you hear it was banned by the NCAA and why?