I did quite a bit of Googling, read numerous reviews and forum discussions about sourcing Ginseng, and I believe this is the highest quality mainstream product. It has a very high 8% ginsenoside content.

I did quite a bit of research; read a lot of reviews and discussions on forums about sourcing Ginseng and I think Auragin® is the highest-quality mainstream product. It's the highest-rated Ginseng product