Each capsule contains Daidzin, Genistin and other Isoflavones Isoflavones are a class of naturally occurring organic plant compounds found in soybeans, chick peas and other legumes. They are a subcategory of phyto-chemicals and phyto-oestrogens. Each capsule contains Daidzin, Genistin and other Isoflavones Isoflavones are a class of naturally occurring organic plant compounds found in soybeans, chick peas and other legumes. They are a subcategory of phyto-chemicals and phyto-oestrogens.