- 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.
From the brand
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Product Description
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Overnight Sensation |
None of the Nonsense |
Use it Before BedR1 Casein is best used during extended periods of downtime, like at bedtime or between meals. |
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| R1 Protein | R1 Whey Blend | R1 Casein | R1 Clean Gainer | R1 Mass Gainer | |
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| Customer Reviews |
4.6 out of 5 stars
611
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4.4 out of 5 stars
205
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4.3 out of 5 stars
372
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5.0 out of 5 stars
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| Price | — | $49.56$49.56 | — | — | — |
| Protein Source | 100% Whey Protein Isolate/Hydrolysate | 100% Whey Protein blend of concentrates, isolates & hydrolysates | 100% Micellar Casein | Whey, Milk, & Micellar Casein | 100% Whey Protein from three high-quality sources |
| Main Benefit | Highest-purity, fast-acting muscle repair and recovery* | Fast-acting, muscle repair and recovery | Slow release, sustained muscle repair and recovery* | Weight and size gain with muscle repair and recovery* | Weight and size gain with muscle repair and recovery* |
| Suggested Use | Before and after workouts. Between meal snacks | Before and after workouts. Between meal snacks | Before bedtime or extended periods between meals | Before and after workouts. Between meal snacks | After workouts and between meals |
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.