The Energy Supplements 100% Pure FloraGlo Lutein Gluten Free With 860 mcg Zeaxanthin Nutritional support for healthy eye function. Ultra Lutein features FloraGlo brand lutein, an active carotenoid from the marigold flower. Ultra Lutein contains a full 20 mg lutein, the level that scientific studies document as providing effective antioxidant protection of the eyes. Ultra Lutein provides 860 mcg zeaxanthin to synergistically enhance antioxidant support. Ultra Lutein is ultra convenient: just one softgel daily!