Detailed Product Description Red clover (trifolium pratense L.) is a perennial herb. Red clover contains very high levels of all four isoflavones , including biochanin A, formononetin, daidzein and genistein. These isoflavone constituents also exist as corresponding sugar derivatives (glycosides), sissotrin, ononin, diadzin and genistin. Current research has shown that isoflavones are the most ...