Licorice is a product with the same origin as medicine and food and is widely used in traditional Chinese medicine and the food, cosmetics and tobacco industries. With the increasing demand for licorice in the herbal market, there is also increasing concern about complex varieties and quality deterioration. Considering the importance of the quality and safety of commercial licorice products, we used DNA barcoding, HPLC and colorimetry to distinguish and evaluate commercial licorice products. Here,...