Cordyceps is a genus of parasitic fungi that grows on the larvae of insects.
When these fungi attack their host, they replace its tissue and sprout long, slender stems that grow outside the host’s body.
The remains of the insect and fungi have been hand-collected, dried and used in Traditional Chinese Medicine for centuries to treat fatigue, sickness, kidney disease lung health and low sex drive.
Supplements and products containing Cordyceps mushrooms have become increasingly popular due to their many purported health benefits.
 
However: Unfortunately, due to the EU Novel Food Regulation this product is no longer approved for human consumption. We are now marketing this product for research purposes only.
Great for :
Fatigue
Sickness
Kidney Disease 
Energising
Lung health 
Increase Libido
Some great info here:  https://mushroomreferences.com/category/cordyceps/    and here:https://paulstamets.com/peer-reviewed-scientific-articles  (you may need to copy and paste)