Corydalis yanhusuo rhizoma has been used for thousands of years. Sometimes referred to as Yan Hu Suo, this amazing botanical is a staple of Chinese medicine. Indeed, it has been grown and cultivated in China since before recorded history. Reportedly used as a sleep aid and sedative, it is related to Papaver Somniferum and similar in alkaloidal content.Here, we present an extract that makes for a more potent product. Less is more when it comes to Cordalis, and, by utilizing extracts, we are able to isolate the active properties of the plant while minimizing the amount needed for use.Yan Hu Suo has been available for years in the US, but it has been largely relegated to Chinese herbal shops in large cities. Phytoextractum is proud to offer this product at a low price for those who do not have access to it locally.