Lute-gen® is a cost-effective, clinically-proven marigold extract, backed by several clinical studies, and a traceable & transparent seed-to-drum program. Manufactured through a patented process, Lute-gen® is available in several versatile forms, such as Free Lutein, Ester Lutein and combinations of Lutein and Zeaxanthin-isomers in the ratio 5:1.