Metagenics GlutaClear is a dietary supplement for glutathione support. Glutathione is the primary antioxidant in the body providing protection against harmful compounds and oxidative stress. GlutaClear is composed of ingredients that support the body's glutathione production. Recommended use: Take two tablets twice daily with food or as directed by a healthcare professional.Metagenics GlutaClear Facts: 2 tablets contain: Vitamin C (as ascorbic acid) 500 mg Niacin (as niacinamide) 750 mg Selenium (as selenomethionine) 75 mcg N-Acetylcysteine 750 mg Broccoli (Brassica oleracea L.var. italica) Seed Extract (providing 5 mg glucoraphanin) 38.5 mg Other Ingredients: Microcrystalline cellulose, cellulose, stearic acid (vegetable), silica, and coating (hypromellose, medium chain triglycerides, and hydroxypropylcellulose).