ISOMORPH 28 Pure Whey Isolate contains extremely small protein molecules that are literally 18x smaller than the proteins from almost every other product on the market (1000 Daltons vs 18,000 Daltons). This means that they can be completely absorbed because the intestinal wall allows them to pass through thanks to their small size. Since these small proteins get into your bloodstream via the small intestine, they get to work right away and require minimal effort from your digestive system.