DescriptionSupports Protein MetabolismHealthy Immune System FunctionNon-GmoA Dietary SupplementVegetarian/VeganKosherAmino AcidsFamily Owned Since 1968Gmp Quality AssuredCitrulline Is A Non-Essential Amino Acid That Is An Important Intermediate In The Urea Cycle Functioning Along With Other Amino Acids To Rid The Body Of Ammonia A Byproduct Of Protein Metabolism. Citrulline Also Plays An Important Role In The Healing Process And In The Maintenance Of A Healthy Immune System.