Reishi is over rated and over hyped commercially in the USA. It carries a hefty price tag if I remember correctly. I had tried a bottle of it a couple of years ago and I didn't notice anything different.

The problem with herbs is this: 90% of it is based on folk lore and other than psychological impact, its of little benefit. I'm not saying reishi mushrooms are based on folk lore, but between folk lore and hype, it makes it a little difficult to make good decisions on herbs... That's just my personal take on it all...