Where can I get good Ginseng powder

Where can I get good Ginseng powder? Many people are unfamiliar with this object, and xiamen is the introduction to it:

Ginseng powder is the powder of ginseng. The taste of sex is: sexual, taste, bitter, lukewarm. The spleen, the lung, the heart. Efficacy: invigorating the spleen, nourishing the spleen and nourishing the lungs and relieving thirst. Ginseng medicinal value is very high, especially in the rescue shock patient, can play an important role, in addition ginseng on diabetes, arrhythmia, cerebral vascular disease, hyperlipidemia, or indigestion also has a certain therapeutic effect, the ginseng can enhance immunity, so also is applicable to cancer patients. Still, it's not to say that anyone can eat ginseng, and children, young people or healthy people don't have to use ginseng.