ISOLYZE™ is 100% pure, microfiltered, whey protein isolate--no sugar, no lactose and no fat. Each 30 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.**