Glutathione can be found in plants and animals it is a peptide made up of three amino acids glutamic acid cysteine and glycine glutathione is an important watersoluble antioxidant that plays a role in supporting muscles from free radicals lglutathione is a biologically active naturally occurring tripeptide composed of lcysteine lglutamic acid and glycine maximised lglutathionie provides a high potency source of lglutathione