Cordyceps sinensis, also known as the Caterpillar fungus, an organism capable of transforming from an insect in winter to a plant in summer (DongChongXiaCao = plant in summer, insect in winter), whose first description dates back to 620 BC in China, during the period of Tang Dynasty, is one of the most considered remedies in Oriental Medicine, particularly Tibetan. It is very rare and valued for its properties. It grows at high altitudes in the highlands of Tibet, between 3000 and 5000 meters. It is a parasitic fungus that grows and develops on insects that it infects in autumn and kills the following summer, growing inside its body and only eventually developing the fruiting body. It enhances the immune response and is particularly effective as an antimicrobial (viruses, bacteria, etc.). Provides vital energy, improves energy metabolism, supports cognitive and sports performance, improves fertility and sexual functions through neuroendocrine rebalancing. Protects heart and cardiovascular functions and supports the liver. It manifests a marked anti-aging action. Take 1 capsule 2-3 times a day, with plenty of water. The contemporary intake of vitamin C is recommended, which favors the enteric absorption of polysaccharides.