Libomax A: AnyLibomax pill that does not contain controlled compounds like sildenafil (the active ingredient in Viagra) or tadalafil, the active ingredient in Cialis. Q: How long does it take for aLibomax pill to kick in? A: If you are specifically looking for vitamins that improve male sexual function, the best candidates are actually trace minerals: compounds like zinc, copper, and magnesium (often found in multivitamins for men ) are surprisingly effective. Among its other natural ingredients, its main active component is a steroid called dehydroepiandrosterone (DHEA). They claim to have sold 1 billion pills to multitudes of satisfied ED patients. The initial effects of the supplement come very quickly: a slight improvement can be seen only after one week of usage.