Nature is pretty good about designing foods that when properly combined and consumed, give you optimal health. It's not likely scientists are going to do something better by sticking a conglomeration of things into a bottle.
My recommendation would be like what Lolvoguy has done. Start by shifting to a natural whole/raw foods diet. Cut out the junk food items one at a time until all that excess sugar, fried foods, white flour, white bread, white pasta, less red meats, processed dairy milk/cheese....is all gone from your diet. After a few months of that if you haven't lost considerable weight and feel great, then you're doing something wrong. If you do this right you will transform yourself. And at that point if you want to try to SuperFoods to reach the next level (if there is one) then go at it. If you can't follow the discipline of a healthy whole foods diet, don't expect you'll find a miracle in a SuperFoods bottle or package.
Real SuperGreens? Spinach, Avocado, Kale, Romaine/Red Leaf Lettuce, Chard, Collard Greens, Broccoli, Astragalus, Parsley, Celery, peas, green beans....as nature intended with all the fiber, moisture, and nutrients in the right percentages. Those are about as superfood as you can get...and probably cheaper than buying a bottle of "stuff." There are also Superfoods that are orange/red/purple. Try them all for the best benefit.