Natural remedies and supplements like ginseng, L arginine, DHEA, and yohimbe are often marketed as treatments for ED, but their effectiveness is inconsistent and not always backed by strong scientific evidence. Some men report improvements, particularly with herbal supplements, but these products are not regulated by the FDA and may vary in quality or purity. Worse, some can interact negatively with prescription medications or cause harmful side effects. Before trying any natural or over the counter ED treatment, consult with your healthcare provider. In some cases, a healthy lifestyle improving diet, exercising regularly, and reducing stress can have as much or more benefit than any supplement.