Nature's Way Selenium Non Yeast Source Potent Antioxidant 200 mcg per Serving 100 Capsules Vitacost Glutathione Recycling pathway Glutathione is involved in detoxification. The graphic shows that riboflavin is needed for glutathione reduction. Selenium supports utilization of glutathione. #dirtygenes #glutathione #riboflavin From Selenium to Selenoproteins: Synthesis, Identity, and Their Role in Human Health Selenium, a Micronutrient That Modulates Cardiovascular Health via Redox Enzymology Selenium containing 15 Mer Peptides with High Glutathione Peroxidase like Activity ScienceDirect Selenium Synergy 60 capsules selenium & broccoli, supports normal cell growth and promotes glutathione production Jarrow Formulas