Ester,
If you really want super greens get a juicer and juice all the fresh veggies, spinach, broccoli, carrots, parsley, apples, oranges etc. that you want. It is a chore to wash them and clean up but you'll get the hang of it. I love the juices! I read that they reach the cellular level in 15 minutes. Also alkalinizes your body to fight cancer. I know a lot of people who belive in the alkaline fighting cancer. If juicing is not an option, then try Green Kamut (wheatgrass juice) or Just Barley. They are powders that you mix 2 teaspoons with water or juice. I like apple juice. Fresh juices are better tasting but these are good with juice. They may take getting used to. They are about $12 depending on the size. My green kamut cost 12.50 for 45 servings.