Reduced active form of glutathione, which is critical for healthy immune system function, is necessary for proper detoxification processes, and supports healthy aging* Milk thistle extract and alpha lipoic acid are included as complementary ingredients 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* Take 1 capsule daily, preferably on an empty stomach Packaged in the USA by a family owned and operated company since 1968