Tribulus is a great circulatory tonic; increases energy and can help build muscle and strength, as well as reduce muscle recovery time. It's a favorite of Olympic athletes and is great all round herb For those facing fertility issues, there are lots of options that will aide in successful conception. One of those methods is really a process referred to as intrauterine insemination. Adding a regimen of natural herbs and a few self massage techniques especially designed for fertility issues may increase the likelihood of IUI success.