There are two kinds of Cordyceps on the market: Xinhui Cordyceps and Beichong Cordyceps, which are very similar in appearance. In fact, there is a big difference between the two. It is suggested to choose Xinhui Cordyceps instead of Beicao. More detailed reasons can be further understood in Baidu Encyclopedia "Insect Flowers".
Shanhaitang, Gangzhouchun and other brands are doing better in Xinhui Cordyceps, and the largest one should belong to Shanhaitang, accounting for half of the output.