The price for 2LB Optimum Nutrition 100% Casein drops to $19.95. Available in Chocolate Peanut Butter & Creamy Vanilla at this price at FITRX. Shipping adds $6.95. Even with that this is the lowest price we saw by at least $7. Details: Exp 8/15. 24g of Anti-Catabolic Micellar Casein. Nearly 5g of Naturally Occurring BCAAs per Scoop. Nearly 5g of Naturally Occurring Glutamine and Glutamic Acid per Scoop.