Standardized to 20% icariin, h. goat weed is used in traditional Chinese medicine to strengthen kidney Yang.
 
Horny goat weed boasts a history of 2000 years of usage in China and is similarly a part of traditional practices in Japan. Its leaves encompass a range of compounds, including flavonoids, polysaccharides, lignans, sesquiterpenes, phenolic and penethylol glycosides, ionones, and sterols, along with an alkaloid known as magnaflorine.