The formula of FOHOW Cordyceps Sinensis Oral Liquid was developed by Professor Tang Youzhi, the honorary president of the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences based on the thoughts and theories of the equilibrium between Yin and Yang and the generation-inhibition in five elements. With distinctive production technique and new and high patented technology, it can balance and regulate human body, protect against tumor and increase immunity. It is an ideal tonic with various health care effects as a combination of the traditional health-preserving theory and the modern technology.