Icariine liquor, also known as horny goat weed extract, is a popular supplement used for its potential health benefits. However, there are several synonyms for this ingredient. These include epimedium extract, yin yang huo, barrenwort, bishop's hat, and rowdy lamb herb. These synonyms come from the plant species Epimedium, which is native to China and other parts of Asia. Icariine liquor is commonly used as a natural remedy for low libido, erectile dysfunction, fatigue, and other health issues. Its various synonyms make it easier to find and purchase this supplement in different countries and regions around the world.