Give Poseidon Health (www.poseidonhealth.com) a try. They offer pure marine phytoplankton powder. They also offer capsules. 100-grams of ultra-pure, organic powder is about $169. Not as much as it sounds when you realize that you only need half to one gram per day, so you're talking about this being 3 months worth. I believe that they also have a 60-gram jar. The capsules (so you don't have to deal with the 'marine' taste) are 600mg, and you get 60 per bottle.