Shan Mi grass, is not a herb, this is the name of a tea, Shan Mi grass tea. The raw material is the stem of Tieguanyin added stevia leaves. The effect is really good, diabetics can also drink. But not expensive oh, about a few dozen dollars can buy a catty. I'm not sure if you're going to be able to buy it, but I'm sure you're going to be able to buy it for a long time.
I also want to say a few words, mountain Mi grass and Mi grass, in fact, is not the same thing, Mi grass is a licorice alias.
San Miguel is a kind of herbal tea, not a Chinese medicine. The two are not the same!