Glutamine and Its Actions: A Bird's Eye View Benefits of Glutathione." Glutathione is a compound involved as a coenzyme in oxidationreduction reactions in cells. It is a tripeptide derived from 3 amino acids: Cysteine, glutamate (from glutamic acid), and glycine. Amazon.com: SOLARAY L Glutathione Supplement 50 mg Free Form Peptide for Powerful Wellness Support L Glutathione Amino Acids Supplement 60 Day Money Back Guarantee, 60 Servings, 60 VegCaps : Health & Household It turns out that T cells utilize quite a bit of glutamine to a) replenish TCA cycle intermediates ('anaplerosis') as well as to b) exchange for other amino acids. Glutamine vs Glutathione Differences Invigor Medical