Lutein 80%, 85%, 90%& lutein ester USP Lutein 80%, 85%, 90%& lutein ester USP Description: Lutein esters found in flower petals is ... that Lutein is esterified and is commonly known as Lutein ester. Lutein can be obtained from extracts of marigold flowers ( ... tagetes erecta l) that contain high concentration of Lutein ester. Richems Lutein esters are derived from marigold flowers, which is ...