The reason science was invented was to try to get things more accurate. This is very important in alternative medicine, because it's a field that has a huge history of fantasy and wishful thinking. But this is improving. There are quite a few herbs touted as sexual aids, but the evidence for all of them is weak. One that may be a bit better than others is the herb ashawaganda.
Blue cohosh is an entirely different herb.
It is actually quite an endangered plant. I don't recommend using it. I'd recommend an extremely low fat diet, garlic supplements, aortic GAGs, antioxidants, . . .and close medical supervision. I hope this was helpful to you all. Dr. Bratman, thank you for this very stimulating discussion.