Rule OneR1 Casein
R1 Casein is a premium slow-release micellar casein that keeps your muscles fed while you sleep.


Rule One R1 Casein

Even in our fast-paced world, there are times when it pays to slow down. Take between meals and bedtime for example. During these occasions, you want a protein that takes its time. Something to hold you over until your next meal. A protein that breaks down more slowly, delivering its amino acids over several hours. R1 Casein is what you’re after.

Quality Casein
25g premium, slow-release micellar casein to help feed your muscles and satisfy hunger overnight or between workouts.
Nighttime Formula
R1 Casein at bedtime will help keep your muscles fed while you catch up on needed sleep.
Clean Manufacturing
R1 Casein is proudly made in our own state-of-the-art GMP-certified facilities in the USA and produced clean, with no banned substances.
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