GNC Natural Brand™ Lutein 40mg is an antioxidant that can help minimize cell damage from excessive production of harmful free radicals, which can destroy healthy cells and affect cell aging. Lutein is an important carotenoid present in the macula or central area of the retina. It provides dietary support for eye health. Lutein, which also helps support skin hydration, is nature's antioxidant for healthy skin. It's found in foods such as spinach, corn, grapes, orange peppers and squash.