Maca is a plant root that comes from Peru, where it has a history dating all the way back to the Incan empire. According to Peruvian myths, it can restore sexual vitality and increase energy in all aspects of your life. In our present day, Maca is one of many ingredients in Moon Juice’s notorious “Sex Dust” powder that’s marketed as an aphrodisiac for both men and women. The Moon Juice website encourages customers to sprinkle and mix the dust in their “coffee, milk, water, smoothies, or ice cream.” Is there any scientific proof backing this magical herb?
Saw palmetto. Saw palmetto comes from the fruit of a small palm tree. It has been used to treat symptoms in men with an enlarged prostate gland, such as difficulty urinating, and it has been recommended to treat ED caused by an enlarged prostate. However, several recent clinical trials did not show that saw palmetto works any better on an enlarged prostate than a placebo does. "There is no evidence that saw palmetto should be used to treat erectile dysfunction," says Dr. Gilbert. Like ginkgo biloba, saw palmetto can interact with some prescription medications.
Move a muscle, but we're not talking about your biceps. A strong pelvic floor enhances rigidity during erections and helps keep blood from leaving the penis by pressing on a key vein. In a British trial, three months of twice-daily sets of Kegel exercises (which strengthen these muscles), combined with biofeedback and advice on lifestyle changes — quitting smoking, losing weight, limiting alcohol — worked far better than just advice on lifestyle changes.
Doing physical activities regularly boosts blood supply and improves your heart. This helps blood flow to all corners of the body, including the blood flow leading to the firm erections. Exercising also steps up your libido by releasing endorphins that make you feel good. Additionally, exercise produces nitric oxide that keeps the arteries open. Therefore, the flow of blood to the penis becomes speedier. Start with brisk walking at least 20 minutes a day or another activity to make more nitric oxide contributing to the maintenance of the erection and your health in general.
However, other studies have highlighted that men who weren’t on antidepressants showed no signs of improvement. With that said, this herb may be great to try if you’re experiencing ED and also on antidepressants. If not, try some of the other herbs on this list first and see if you like them more. You may get better results elsewhere! Also, this herb is not recommended for men who are on blood thinning medication, as this herb has been known to make people bleed more.
E longifolia is a medicinal plant (family Simaroubaceae) native to Indonesia, Malaysia, Thailand, Vietnam and Laos. The root extract has been found to be the most powerful herbal aphrodisiac . Tongkat ali extracts contain many alkaloids, quassinoids, phenolic compounds, tannins, high-molecular-weight glycoproteins and mucopolysaccharides. The main bioactive compounds are eurycomaoside, eurycolactone, eurycomalactone, eurycomanone and pasakbumin-B. It is considered to be natural ‘Viagra’. It increases sexual desire, and enhances performance and general well-being [17- 19]. In addition to its aphrodisiac effect, other medicinal effects, such as antimalarial, antibacterial, antipyretic, antiulcer and antitumour effects, have been reported [20,21]. Root decoction has been used as a general tonic (18,22]. Laboratory animal studies show that root extract enhances sexual characteristics and performance in rodents [22-25]. In a study involving a boar model, it was found that E longifolia root extract-treated boars increased sperm counts and semen volume; the effect was attributed to increased level of plasma testosterone . Reports also suggest that E longifolia extract reverses the inhibitory effects of estrogen on testosterone production and spermatogenesis in rats . Oral administration of E longifolia extract to inexperienced castrated male rats produced dose-dependent increases in sexual performance . Zakaria et al  found that eurycomanone, a potential bioactive compound in the root extract of E longifolia, induced apoptosis in hepatocarcinoma (Hep G2) cells. Furthermore, their work suggested that eurycomanone was cytotoxic to Hep G2 cells and less toxic to normal Chang’s liver and WLR-68 cells. Tambi and Imran  investigated the effects of water-soluble extract of the root of E longifolia Jack and found that the extract increased semen volume, sperm concentration, percent of normal sperm morphology and sperm motility in male partners of subfertile couples with idiopathic infertility. Supplementation with E longifolia elevated the testosterone levels and upregulated osteoprotegerin gene expression in male Sprague-Dawley rats .
However, in some people there may be a genetic defect which prevents production of carnitine in body. Additionally, certain disorders of liver, kidneys and brain may also impair the production of enough carnitine. Some medications may also cause carnitine deficiency. In such cases, it becomes necessary to supplement carnitine to ensure normal smooth functioning of our body.
Even in the absence of deficiency, L-carnitine supplementation has shown promise for improving erectile function in men. It is available commercially in tablet, capsule and liquid capsule form. Recommended dosage is in the range of 500 – 2000 mg of propionyl L-Carnitine once a day which is often used in combination with a 50 mg dose of Viagra which is given twice a week.
Erectile dysfunction (ED) is commonly called impotence. It’s a condition in which a man can’t achieve or maintain an erection during sexual performance. Symptoms may also include reduced sexual desire or libido. Your doctor is likely to diagnose you with ED if the condition lasts for more than a few weeks or months. ED affects as many as 30 million men in the United States.