Pine pollen, the name of traditional Chinese medicine, is the dried pollen of Pinus massoniana, Pinus tabulaeformis or several plants of the same genus. When the flowers first bloom in spring, pick them and dry them. Pick them to remove impurities and eat them. According to Shennong Herbal Classic, pine pollen is bright yellow or yellowish fine powder, which is sweet and non-toxic and is a traditional food in China. Some traditional foods in China, such as muffins, pine nuts and pine wine, are still added with pine pollen, which has great medicinal value and remarkable curative effect on skin-related diseases. Mainly produced in Yunnan, Zhejiang, Jiangsu, Liaoning, Jilin, Hubei and other places. When it blooms from May to April, it is picked, dried, rubbed off pollen and removed impurities.