L-citrulline is an amino acid found in watermelon. It is also made in the body. The body changes L-citrulline into another amino acid called... L-arginine. The name citrulline comes from Citrullus vulgaris, the Latin term for watermelon.
Glutathione is a substance made from the amino acids glycine, cysteine, and glutamic acid. It is produced by the liver and involved in many body.. processes. Glutathione is involved in tissue building and repair, making chemicals and proteins... needed in the body, and in immune system function.