The best quality Cordyceps sinensis is produced in Naqu, Tibet and Yushu, Qinghai, at an altitude of 3,000-4,000 meters, with high content of anticancer natural cordycepin and natural amino acids. According to the relevant data of the industry, there are two brands of Cordyceps sinensis with the best reputation in the above-mentioned producing areas, one is Fulinmen Cordyceps sinensis and the other is Tongrentang. Fulinmen is more affordable and suitable for home use; Tongrentang is about 2 times more expensive than Fulinmen, which is suitable for high-end business gifts. Consumers can choose according to their own needs.