Epimedium, also known as horny goat weed, is a Herb plant that，Traditionally used to support male hormones, helping to increase energy, endurance and alertness. And combined with black pepper, it is easier to absorb. Improves Endurance - Epimedium improves physical performance, helping you stay strong longer, and also supports healthy blood flow. TRUSTED FORMULA - Our Epimedium capsules are formulated and manufactured under strict GMP guidelines; our Epimedium extracts are third-party tested to ensure the quality and purity of each batch.