Cordyceps sinensis, commonly referred to as the caterpillar fungus, is among the most highly valued medicinal mushrooms in traditional Chinese and Tibetan medicine. Renowned for its potent health-promoting properties, it has been used for centuries to enhance endurance, strengthen the immune system, and support respiratory function. This rare fungus grows naturally at high elevations—typically between 14,000 and 17,000 feet—mainly in the Himalayan region and the Tibetan Plateau.

Unlike Cordyceps militaris, which can be cultivated and is commonly found in areas such as Bhutan, China, and Tibet, Cordyceps sinensis grows exclusively in the wild and is far more challenging to cultivate.