Cordyceps militaris has many functions, which can tonify kidney and lung and enhance immunity. Deer Millennium Cordyceps tea makes full use of these functions of Cordyceps militaris and cooperates with other beneficial raw materials to produce a kind of health tea which is very popular among the public. I bought two boxes for my parents, and they said the effect was quite good. Thank you. If you have any questions about this, you can ask me at any time.