Tribulus terrestris is a flowering plant, growing all MyCial RX Review over Europe and Asia, in desert like climates and near tropical one's. It is considered to increase users testosterone levels. With it comes increases sex drive, libido, sperm quality and volume plus certain aggressiveness. Tribulus terrestris become popular in the 70s as a sex drive enhancer. It Gained popularity in Eastern Europe first and then the word spread around the globe. It was brought soon to America. By not it is become a part of multi million dollar business and is not planning to leave.
The main point is that it is claimed to increase body's testosterone levels. But only to the body's natural limits so it's often labeled as herbal steroid or safe steroid. This is a very simplified claim - steroids possess far stronger effects on testosterone that tribulus terrestris and therefore pose many dangers. If you increase the testosterone level way over body's naturally set limits then in addition to the increased muscle build, also internal organs and pre-cancerous cells will start to grow. So steroid use can lead to permanent damage that tribulus terrestris use can not. Also be noted that in a long run steroid use hurts sex drive and produces dysfunctions itself while tribulus terrestris only helps the body to maintain the optimal level on testosterone and therefore it cures and prevents sexual dysfunctions
Tribulus terrestris contains protodioscin. This is thought to be the working agent it. It is considered to trigger the release of nitric oxide in corpus cavernosum tissue, and also to produce statistically significant increases in the levels of the hormones testosterone, dihydrotestosterone and dehydroepiandrosterone in animal studies. Animal studies showed greatly increased sexual behaviour. Human studies have been few and far apart.
The problem with the human studies is that they are very few and most of them are done by the order of an Bulgarian largest tribulus and health products supplier. So there are some doubts about the accuracy of their results. These studies confirm that it does indeed increase testosterone levels, erectile functions, sperm quality and volume,libido, sex drive.