Natural Factors Lutein 20mg 120’sLutein and zeaxanthin are carotenoid antioxidants that are concentrated in the eyes, where they protect the lens and retina from damage caused by free radicals and exposure to sunlight. Natural Factors uses LuteinRich naturally sourced, pure, high potency lutein and zeaxanthin derived from marigold petals. LuteinRich is non irradiated and GMO free. Provides antioxidants that help maintain eye health Supports eyesight in conditions such as cataracts