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ISOLYZE™ is 100% pure, microfiltered, whey protein isolate—no sugar added, and no fat. Each 33 gram scoop of ISOLYZE contains an incredible 27 grams of muscle building protein. And due to advanced filtering techniques, ISOLYZE still possesses high percentages of muscle-sparing and immune system-enhancing immunoglobulins, lactoferrins, and glycomacropeptides. And if all that weren’t enough, ISOLYZE tastes great.