If you insist on using a tribulus product, the best ones (i.e. standardized for the biggest amounts of protodioscin) are:
- the new Syntrax Fuzu (due Jan/Feb 03)
- SAN's Endotest (due out in the next few days)
- Sopharma Tribestan
For ZMA, stick to either Biotest's ZMA or Twinlab's ZMA Fuel.
or for another alternative, buy 50mg zinc gluconate tablets and take them on empty stomach with 200mg of magnesium before bed. (Zinc is an important mineral for natural test. production)
Muscletech products are a rip-off. Id never trust anything they sell because their advertising is full of blatent lies (much more than most similar companies). And the cost of their products is outrageous.