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Lutein Qingdao Free Trade Zone United Lutein is a yellowish orange powder extracted from marigold oleoresin which is produced directly from marigold flowers. It is a kind of carotenoid giving it very strong antioxidant properties that mainly promote eye health. Lutein is widely used in the fo...展开 Lutein is a yellowish orange powder extracted from marigold oleoresin which is produced directly from marigold flowers. It is a kind of carotenoid giving it very strong antioxidant properties that mainly promote eye health. Lutein is widely used in the food industry as a colorant and nutrition fortifier. 收起