Elevate your protein game with Promasil Casein Protein, available for $124.00 at TRFitness. This premium casein protein powder from Rival Nutrition is expertly formulated to support muscle growth, repair, and sustained recovery with a slow-digesting protein source.

Promasil Casein Protein is designed to provide a steady release of amino acids, making it the ideal choice for nighttime use or between meals. With its high-quality casein blend, this protein supplement ensures your muscles receive a continuous supply of nutrients to support growth and recovery, even when you’re not actively training.