Vitrix is a very safe and effective product. The only possible side effect that we know of manifests itself in a noticeably increased libido i.e. significantly enhanced sex drive. This, however, can by no means be seen as something negative. Vitrix exclusively consists of natural ingredients, which are not known to cause any toxic or harmful side effects when taken in the recommended dosage as depicted on the label. Rarely has there been an all-natural formula that offers so many benefits with the absence of side effects as is the case with Vitrix. The only group of people who should not take Vitrix are women who are on contraceptives. Since Vitrix contains a significant amount of the herb, Vitex agnus castus, it can potentially interfere with contraceptives.