https://www.herbco.com/c-173-burdock.aspx weekly 0.7 https://www.herbco.com/p-415-burdock-root-cs.aspxdaily0.9 https://www.herbco.com/p-438-burdock-root-cs-organic.aspxdaily0.9 https://www.herbco.com/p-683-burdock-root-powder-organic.aspxdaily0.9 https://www.herbco.com/p-704-burdock-leaf-cs.aspxdaily0.9 https://www.herbco.com/p-706-burdock-root-powder.aspxdaily0.9