Black ginger extract effects on ED are undeniable from the perspectives of both traditional and modern medicine. And, it’s for this reason that it is sold in patented forms, like KaempMax. Just so you know, once you hit your 40s, you have a 22 percent chance of having erectile dysfunction. This would only increase as you age further, with the highest at 50 percent. With these numbers, it is not surprising at all that there’s a high incidence of erectile dysfunction among older men—though this isn’t to say that younger men are immune to this issue.