Dymatize ISO 100 Whey Protein Isolate 1.6 . Optimum Nutrition 100% Whey 2 Lbs. Casein Protein Casein is a type of protein that is required by the body to maintain adequate body functions. The name ‘Casein’ is der. March 18, 2014. By Me with 0 comments. The difference between whey protein concentrate and isolated. The difference between whey protein concentrate and isolated Whey protein is created during the production process of cheese. It is separated as . March 18, 2014. By Me with 0 comments.