From Manufacturer's Label:
Healthy Origins Setria L-Glutathione Reduced is a naturally occurring 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 proprietary fermentation process.
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.