Folklore states that a Chinese goat herder noticed increased sexual activity in his flock after they ingested the weed. Also known as epimedium, the primary effect of horny goat weed is the dilation of blood vessels. This allows hormone-boosted bood to circulate, increasing blood flow to the penis. An added bonus, horny goat weed also lowers blood pressure.
This herb has been used for around 2000 years as an aphrodisiac; it is also used to alleviate disorders of the liver, kidneys, joints, knees and back. It is especially effective in curing male impotence, and increase sperm production, resulting in better fertility.
As for the ladies, horny goat weed can stimulate arousal by increasing the estrogen receptor and increasing blood flow. The results of the herb are instantaneous, so make sure to take 1-3 500mg capsules prior to any sexual activity.