What it is: From the family who brought you Optimum Nutrition, R1 Casein is their newest and best tasting Casein Protein yet! You can help your body re-build muscle overnight with this amazing formula from Rule One.
How it works: The most important rebuilding process for your muscles occurs at night and casein is a particular protein that allows your body to digest it all throughout the night. Having one scoop of Casein a night is filled with 25g of protein that will protect your muscles all throughout the night! This formula will add BCAAs and Glutamine as well for even better recovery.