Marigold Flower Extract---Lutein Botanical Resource: Calendula offcinalis L Description: Orange Powder Specification:5%-40% Lutein Test Method:UV-Vis Standard:USP29 Lutein and Zeaxanthin are antioxidants found in many plants and vegetables including red pepper and cabbage etc. Lutein and Zeaxanthin are yellow pigment belongs to the carotenoid family,Although they are not categorized as a vitamin,dietary lutein and Zeatxanthin are believed to be essential nutruients for normal vision. Lutein and Zeaxanthin can lower the risk of age related vision loss by protecting the retina from damage of the photo-oxidative affect of blue light. Lutein &Zeaxanthin can reduce the oxidation of LDL cholesterol thereby reducing the risk of artery clogging. 20KG/bag