Bil LuteinHealth ConcernsBil Lutein helps to preserve optimal nighttime vision. Protects the retina and macula. Contains marigold extract which provides a carotenoid called lutein. Lutein might work to protect the cells in your eyes from free radical damage by serving as an antioxidant. *These statements have not been evaluated by the U. S. Food and Drug Administration. This product is not intended to treat, mitigate, diagnose or cure any disease.