Um... as per that youtube punk....
You could buy 4 months' worth of testosterone for what it would cost you to buy all those supplements in quantities that would last a month. And yes, as others have said, quite obviously it hasn't done s*** for him. Someday he'll realize his voice is still soprano and he'll never pass for more than a 14-year-old boy... at best.
In other news, though, as I've noted on other threads of this nature, fish oil. I did tons of research, and it's about the only thing that, across the boards, will increase serum testosterone levels. However, that won't be nearly enough to cause any physical changes. Your best bet is to exercise, and if you're going the T route, get your ducks in a row so you can get on it as soon as possible.
SD