Bought mint leaves. There are blue things there.

Chlorophyll. The mint leaves bought are blue, and the mint leaves are blue with chlorophyll and chlorophyllin. Mint, the name of Chinese medicine. The original name is "Yindancao", which belongs to Labiatae, that is to say, it belongs to other dry whole grasses. Most of it was born by the wetland river in Shan Ye, and its roots are underground. It is an aromatic crop with special economic value.