Rule 1 Casein Protein 4LB - Vanilla Crème

We utilize 25g per serving of Micellar Casein in this protein formula, so it keeps working long after you've left the gym. It's slow-release formulation is designed for occasions when you want a protein that takes its time and delivers its amino acids benefits over several hours.

SLOW-RELEASE PROTEIN - R1 Casein provides 25g per serving in a thick satisfying shake. We utilize micellar casein protein so it keeps working long after you've left the gym. 100% of protein in this formula is from micellar casein.

QUALITY FORMULA - R1 Casein is naturally rich in all nine EAAs including the three BCAAs. We intentionally left out: non-casein proteins creamers and banned substances.

HOW TO USE IT - This slow-release formulation is best used during extended periods of downtime like at bedtime or between meals.

BETTER INPUT BETTER OUTPUT - You’ll see these words all over our products. It means we’re relentlessly pursuing better input to ensure we never put a product on our site—or on a shelf—that we wouldn’t put in our own gym bag.