NOW Foods Supplements, L-Citrulline 750 mg, Supports Protein

What the brand says

Sold as “NOW Foods Supplements, L-Citrulline 750 mg, Supports Protein Metabolism*, Amino Acid, 90 Veg Capsules”

Healthy Immune System Function* Citrulline 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.* Natural color variation may occur in this product.