category：standard herb extracts plant original: epimedium brevicornum l part used：leaves& stems specification: icariin 5%, 10%, 20%, 30%, 40%, 50% test by hplc icariins 5%, 10%, 20%, 30%, 40%, 50% test by hplc indications: it is invigorative, tonic and anti-rheumatism. it stimulates the production of androgen (sexual) hormones with no found effect on estrogen. it has been applied to men suffering from impotence and low sperm count. and has been consumed by women who suffer from a decreased sexual motivation. a tonic of this plant is said to warm the body for both men and women。