What is Doctor\'s Best Ultra Cordyceps Plus?Doctor\'s Best Ultra Cordyceps Plus is a blend of herbs that help improve vitality, support energy & stamina, and supports lung and liver health. It contains Cordyceps sinensis, an herb used for centuries in China as a vitalizing tonic that improves energy and benefits the function of various organs and systems. Two additional herbs that support the rejuvenating effect of Cordyceps have been added to this formula: Ginkgo biloba extract and artichoke leaf extract.How does it work?Cordyceps sinensis: Ultra Cordyceps contains a strain of pure cultivated Cordyceps sinensis recognized by the Chinese government as very similar to wild Cordyceps sinensis. Highly valued in China as a food and tonic, wild Cordyceps is an exotic fungal complex found at very high altitudes in a mountainous region of China known as the Qinghai-Tibetan Highlands. Ultra Cordyceps contains a strain of cultivated Cordyceps mycelia standardized by HPLC for consistent potency. It contains a minimum level of 8% cordycepic acid (D-mannitol), an important bioactive compound. In addition to cordycepic acid, biochemical analysis of Cordyceps sinensis has revealed many other active constituents: polysaccharides, nucleosides (including the adenosine derivative cordycepin), sterols, amino acids, and trace elements. Ginkgo Biloba Extract: Ginkgo extract has been used for thousands of years in Ayurvedic and traditional Chinese practices towards promoting heart, lung, and brain health. Research of the past few decades has provided scientific rationale for this rich history of use. The active compounds in ginkgo leaf extract are terpenoids, such as the lactones ginkgolides and bilobalide, and flavonoids. The Ginkgo biloba extract in Ultra Cordyceps Plus is guaranteed to contain no less than 24% flavone glycosides and 6% terpene lactones. Artichoke Leaf Extract: Artichoke leaf contains various organic acids, including cynarin. The artichoke leaf extract in Ultra Cordyceps Plus supplies 2% to 5% cynarin.