1 oz Black Cohosh/Cimicifuga racemosa Extract We prepare our Black Cohosh Extract from the rhizome & rootlets of Cimicifuga racemosa plants which are Certified Organically Grown especially for us in their native forest habitat in eastern Kentucky. To assure optimal extraction of Black Cohosh's isoflavones & other bioactive compounds, the rhizome & rootlets are hand-dug only in late autumn or early spring, are carefully shadedried, and are then thoroughly extracted. Our Black Cohosh is never fumigated or irradiated. Dry herb/ menstruum ratio: 1: 5