NutriJa L-ARGININE AND L-CITRULLINE Protein Bars(100 g, UNFLAVOURED)
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L-Arginine will get you a 2 hour window of improved nitric oxide production. Although our research reveals that if you combine L-Arginine & L-Citrulline in a synergistic proportion then you will increase this window of improved nitric oxide production to a 24 to 36 hour window!