<<Disclaimer: Verify this information before applying it to your situation.>>
Sorry for the delay in summarizing. Three people wrote and said they use
Earthrise which is supposed to be pesticide and additive free. I found this at
the Whole Foods Store. Someone was nice enough to also send their web page
http://www.earthrise.com. They also recommended Frontier
http://www.frontiercoop.com. One is a distributor for Cell Tech Super
Blue-Green Algae. Someone else wrote from Australia that they use Life Stream
Spirulina New Generatioin. I'm thankful for finding good brands of spirulina
which I consider to be a great supplement for me. I'm a vegetarian and have
become lactose intolerant, so now I'm vegan.
Susanne