Now Glutathione 500 mg Capsules With Milk Thistle Extract & Alpha Lipoic Acid is a synergistic blend that boosts body's free radical scavenging ability. Glutathione is a powerful antioxidant found in every cell in the body. 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 and is necessary for proper detoxification processes. It also plays a critical role in the body’s defense system against oxidative stress by directly neutralizing free radicals, as well as by maintaining the activity of vitamins C and E. Your body needs increasing levels of glutathione as you age. Your body's ability to produce the powerful antioxidant diminishes over time, leaving you more vulnerable to a variety of diseases and health issues. Now Glutathione can help you keep your levels high enough to reap all the glutathione benefits the powerhouse compound has to offer. Milk Thistle Extract and Alpha Lipoic Acid are also included in this formula as complementary ingredients. Milk Thistle Extract is a strong antioxidant that reduces the chances of oxidative stress (free radical) induced liver damage. In addition to supplying antioxidants itself, milk thistle has also been found to boost the liver's own production of glutathione. Alpha lipoic acid enhances the level of L-glutathione in the body.