active ingredient: icariin 
part used: branches and leaves of epimedium brevicornum maxim. 
apperarance: brown fine powder 
cas number: 489-32-7 
molecular weight: 676.65

Epimedium contains a compound known as lcariin that helps stimulate the nerves throughout the body. advanced studies reveal that this stimulation effect is particularly experienced in the genital area of the body. 
horny goat weed has been used as an aphrodisiac for hundreds of years, and research has also proven its effects on improving sexual desire and performance. so how does horny goat weed work? research has shown that horny goat weed can inhibit an enzyme called acetylcholinesterase (ache). 
ache rapidly stops neurotransmission at cholinergic synapses like those found in the brain and at neuromuscular junctions, which are needed for speedy responses in the neuromuscular system. by inhibiting ache, horny goat weed supports higher levels of the key cholinergic neurotransmitters associated with sexual arousal. 
it is a robust all-natural stimulant that can support a more robust life as well as love-life. 
the leaves of the plant contain a variety of flavonoids, polysaccharides, sterols and an alkaloid called magnoflorin. many cultures have reported that horny goat weed supports increased libido, improved erectile function, and relief from menopausal discomfort. 
while the scientific community has focused mainly on men and treatments for erectile dysfunction, women's sexual performance and loss of sex drive (among both sexes) are also hot issues today.