[Brandye]

L-Arginine and Yohimbe do have some anecdotal support for increasing male libido. Yohimbe has been shown to increase semen output in dogs. Neither of these has any effect in single doses as described. Both require regular dosing rather than single doses.

Yohimbe has significant side-effects that most men do not want. Supplements are medicinal and have all the risks of similar medicines. You should really be working with a naturopath, homeopath or qualified herbalist when using these.