Jarrow Formulas Arginine-Citrulline Sustain (120 tablets) is a dietary supplement that contains a synergistic combination of two amino acids: L-arginine and L-citrulline. These amino acids are precursors of nitric oxide (NO). L-Citrulline is largely converted into L-arginine, which increases the circulating and blood levels of L-arginine for NO production. Arginine-Citrulline Sustain™ delivers these amino acids to the body over a period of 8 hours.

Ingredients:

L-Citrulline, L-Arginine, Calcium Phosphate, Microcrystalline Cellulose, Hydroxypropylmethylcellulose, Magnesium Stearate (vegetable source), Stearic Acid (vegetable source), Silicon Dioxide, suitable for vegetarians and vegans.