I only know of a few companies that sell herbs to the public with good quality and prices. Starwest and Mountain Rose Herbs. But it is going to boil down to what you are looking for. Some herbs may not be available from either company.
Thanks a lot Hv!
I also have a question about concentrates. Say a 4:1 concentrate of chaparral. Is 1/4 teaspoon of this just as effective as one teaspoon of non-concentrate chaparral powder? Is there any active ingredient that might be lost in the process of making the concentrate?