Cordyceps
For thousands of years, Cordyceps has been highly valued in China as a tonic food and herbal medicine. Until recently, it was only available in nature as it grows in the body of a caterpillar. Thus, the fungus was rare, very expensive, and subject to contamination. Today, a potent strain of Cordyceps, CS-4, is grown in a liquid broth medium under sterile conditions, making it safe, affordable, and available for use as nutritional therapy for many conditions.
Cordyceps is a peculiar Chinese fungus with a long history of use treating exhaustion, rundown conditions, weakness, poor sexual appetite and aging. Research suggests that cordyceps has antioxidant properties and increases blood flow to the organs. Cordyceps is highly valued in China for building sexual energy over time by enhancing kidney yang and replenishing kidney yin; therefore, it's considered a potent sexual tonic.