These drugs work works by promoting nitric oxide flow. Nitric oxide is the signaling substance for initiating and maintaining erections. It spurs blood and oxygen flow, as well.
L-Arginine is the essential amino acid necessary for the formation of nitric oxide. It's included in the supplement ArginMax. In a double-blind, placebo-controlled study, 75 percent of patients with erectile dysfunction reported improved satisfaction with their sex lives after four weeks of supplementation with ArginMax.
Other key ingredients in the ArginMax formula are ginseng and ginkgo. These are thought to help convert L-Arginine to nitric oxide and promote microvascular circulation.
Another herb, epimedium grandiflorum, known to the Chinese as horny goat weed, "has been used for millennia as a male sexual tonic and performance enhancer," says licensed acupuncturist Andrew Wells of Los Angeles. "There is some research in Chinese medical literature indicating that horny goat weed does increase sperm production and frequency of sexual activity in certain animals," said John Holmstrom, a licensed acupuncturist and herbalist based in the Los Angeles area.
