* Economy Size * 100% Natural * Pharmaceutical Grade * Dietary Supplement Healthy Origins Setria L-Glutathione Reduced is a naturally derived substance that is a biologically active sulfur amino acid tripeptide compound containing three amino acids: L-Cysteine, L-Glutamic Acid, and Glycine. Our L-Glutathione Reduced is produced exclusively in Japan through a fermentation process and is pharmaceutical grade, the highest quality available. • Gluten Free • Dairy Free • Yeast Free • Wheat Free