Doctor s Best Lutein & Zeaxanthin. Live colorfully. Lutein with Lutemax 2020 contains a highly researched optimal ratio of lutein and zeaxanthin to help protect your eyes from harmful energy blue light in everyday surroundings including most digital screens sunlight and indoor lighting. Using the natural extract from Marigold flower these are delicious & are a natural tasty way to help keep your eyes healthy from frequent use of digital devices.* At Doctor?s Best we lead with science. Our products are backed by research and crafted using pure ingredients carefully sourced from around the globe. Since 1990 we have dedicated ourselves to providing highly effective nutritional supplements that enable you to live a healthier lifestyle. We want nothing more than to see you and your family thrive!