What Is Horny Goat Weed, Exactly?
Horny goat weed is the common name for Epimedium, a leafy plant native to China with hundreds of years of traditional use behind it. The compound people actually care about is icariin, a flavonoid found in the leaves. Most horny goat weed extracts are standardized to a specific icariin percentage, usually between 10% and 20%, because that's the part of the plant believed to do the work.
If you're comparing supplements and one lists its icariin percentage while another doesn't, that's worth noticing. Here's where most products fall short: they list "1000mg Horny Goat Weed" on the label without telling you how much icariin is actually in there. That's like buying coffee and not knowing whether
it's 5% or 95% caffeine. The number that matters isn't the total extract weight, it's the icariin content per serving.
