Reduced Active Form* With Milk Thistle Extract & Alpha Lipoic Acid Glutathione is a small peptide molecule composed of three amino acids: cysteine glutamic acid and glycine. It is produced by every cell of the body with especially high levels in the liver.* Glutathione is critical for healthy immune system function necessary for proper detoxification processes and supports healthy aging.* It also plays a critical role in maintaining cellular health by directly neutralizing free radicals as well as by maintaining the activity of vitamins C and E.* Milk thistle extract and alpha lipoic acid are included as complementary ingredients. Natural color variation may occur in this product.