Tribex from Biotest is the highest quality, most potent, legal testosterone boosting compound available. Tribex's active ingredient Tribulus terrestris naturally increases your Luteinizing hormone levels which act as a precursor to increase testosterone levels. This enables you to build muscle in a natural way. You'll start to notice gains in about four weeks. Individuals vary enormously, and muscle gains have as much to do with
proper training, overall nutrition, rest, and genetic capabilities as
they do with testosterone levels.