Premium Quality Lutein is an essential carotenoid found in the macular section of the retina. Lutein helps protect the retina from harmful ultraviolet light and free radicals.* Natures Way uses the free form of lutein, as found in nature, which is readily absorbed by the body. Did you know? Lutein is also found in the skin and is thought to help in skin protection from ultraviolet light. Questions? Call 1-800-9NATURE or visit naturesway.com. Our Lutein is carefully tested and produced to certified quality standards. Satisfaction Guaranteed. Freshness & safety sealed with printed outer shrinkwrap and printed inner seal. Do not use if either seal is missing.