Cordyceps sinensis is a species of fungus that has been widely used by traditional Chinese herbalist for its rejuvenative and adaptogenic properties for hundreds of years. Recent scientific research on Cordyceps has uncovered a broad range of biological actions, which are conferred primarily through its high polysaccharide content. Best Naturals Cordyceps is a 100% vegetarian product made especially for those seeking a traditional supplement for their dietary needs. Certain research publications indicate that Cordyceps may help support the following: