I use this stuff from Optimum Nutrition called 850 stack. It is androstine and tribulus mixed. I love the way it makes me feel before a workoout. It's supposed to up your testosterone to normal levels( but not above). I notice a difference when i use it and when i don't.
Yeah.. Tribulus is great to stack with either a Andro or Nor-Andro product. I prefer Tribestan for the Tribulus product. It's a 100% natural testoserone booster.