Glutathione: What It Is, Why You Need It, How You Can Increase It The Amino Company Glutathione The Master Antioxidant With Enormous Benefits Wellness By Rosh Integrative Wellness Glutathione is indeed the master antioxidant and is found in every cell in the body. It is made from the amino acids glycine, cysteine, and glutamic acid. . One unique thing Glutathione: your body's master antioxidant & detoxifier Glutathione is the 2nd most abundant molecule in the body, just after water. Its made from three amino acids: glycine, cysteine, & glutamate.