The new book《細說培植蟲草》is sponsored by Royal Medic and published by the Institute for the Advancement of Chinese Medicine Ltd.(IACM) of Hong Kong Baptist University.Dr. Leung Kai Man, Lecturer I/ Laboratory Manager of the Research and Development Division, School of Chinese Medicine of Hong Kong Baptist University, said that Fermented cordyceps Cs-4 is one of a suitable substitution for wild cordyceps. After years of researches and clinical studies, Cs-4 was proven to have efficacy and active ingredients similar to wild cordyceps. The amount of some ingredients, such as Adenosine, was found to be higher in Cs-4 than in wild cordyceps. Besides, the amount of polysaccharides is around 1.6 times higher in Cs-4 than in wild cordyceps. We can enjoy products of similar benefits to wild cordyceps with affordable price.