Support healthy musculoskeletal system function with Wild Yam liquid extract from Herb Pharm. We prepare our Wild Yam Extract from the rhizome of Dioscorea villosa vines which are Certified Organically Grown especially for us in their native forest habitat in eastern Kentucky. To assure optimal extraction of Wild Yam's bioactive compounds, the rhizomes are hand-harvested only in autumn, are carefully shade-dried, and are then thoroughly extracted.