A total of 51 licorice samples sold as bulk root powders, sticks, or capsules were either purchased online and from Chicago metropolitan area stores or acquired through our collaborative network. Sampling of BDS capsules was restricted to dried preparations (powdered plant tissue in gelatin capsules). To protect the manufacturer’s identity, the samples were reported with internal Botanical Center codes (Tables 14). Samples BC629, BC693–694, BC711, BC746–747, BC749, BC751–755, BC772, BC774, and BC778 were botanically/macroscopically verified prior to inclusion.