hello. I am very surprised that no one mentioned horny goat weed, epimedium grandiflorum, as of use for low libido. one to two 00 capsules (aprox 480mg each) taken about an hour before sex, works well for both men and women. I am post menopausal, and have a lot of the issues that go with this. I have rediscovered my sex drive lol. a word of warning, if you have high blood pressure, use with caution, as horney goat weed can raise bp, especially in males. Also, DO NOT use the capsules that are sold at adult stores, as these have been cut with who knows what, and contain very little of the actual herb.