Lutein and zeaxanthin are carotenoid pigments vital for human health. Structurally, the critical difference between lutein and zeaxanthin is their ionone ring. The hydroxy group of lutein and zeaxanthin, which are xanthophylls, enables them to cross blood-ocular and blood-brain barriers. Both lutein and zeaxanthin are predominantly present in the lens and macular region of the eyes. Lutein and zeaxanthin are potent antioxidants and help eye health, especially in conditions associated with sunlight damage, such as cataracts and age-related macular degeneration. Lutein and zeaxanthin have been shown to help reduce the risk of developing cataracts and improve macular pigment optical density. NFH’s Lutein SAP provides high-quality non-GMO lutein and zeaxanthin in a synergistic combination for optimal eye health support.