If you’re a regular 100% whey protein user, read on, because there’s something you need to know. Our investigation into the science should royally piss you off. I sure was… In our quest to build muscle, protein intake is the single most important factor. When I say intake, I don't just mean amount...I mean the type of protein too. Reputable journals have already tested the effects of different proteins in human subjects, and the data could not be more conclusive. Whey + Casein is the superior choice. Ingredients: Select Protein Blend (Milk Protein Isolate [comprised of casein protein and whey protein], Whey Protein Concentrate 80%, Leucine Peptides), Natural and Artificial Flavors, Salt, Guar Gum, Sucralose, Acesulfame Potassium. Contains milk and soy ingredients. Serving Size 1 Scoop (32.5 g) Amount Per Serving.