Spirulina is a blue-green fresh water algae -- only one algae. You can buy it a lot cheaper than that, so I think you've stumbled onto a multi-level direct marketing venture. If you want to try it, powder works best but tastes pretty bad. I take the pills every day -- you have to take several because it's food. You can find it at any good health food store. The two best brands readily available are Earthrise and Nutrex Pacifica.
thnak you...but I now see it's a supplement of two algas at $97 a go?? Have I misread it?
It's an extremely nutritious food, very high in antioxidants and chlorophyll. You might want to Google it and see just how many nutrients are in it, which is why it's called a "superfood."