What is Marigold Flower ?
- – Marigold flower, also known as Tagetes erecta L., has a long history usage as a medicinal herb; it is commonly found in Europe, North America, and Asia. The flowers and leaves of Marigold flower are the main parts that have the beneficial properties, such as antioxidant, anti-inflammatory, anti-mutagenicity, antiviral and immunomodulatory effects owing to increased polyphenol contents, especially carotenoids, flavonoids, tannins, triterpene, alcohols, saponins and polysaccharides. Recently, its rich content of lutein has been paid a lot of attention to, and it has been used as a source of lutein supplement in the food industry. Many studies and experiments have shown that lutein and zeaxanthin supplementation can maintain eye health, and lower the incidence of various eyes chronic diseases, especially age-related macular degeneration(AMD). 
Function? – Eye Health
- – Lutein and similar structured carotenoids can protect underlying retinal cells from oxidative stress by aggregating in the eye where they can buffer light. 
- – Dietary and supplemental lutein and zeaxanthin are known to increase total macular pigment levels which can result to protective effects in aged eye cells.
- –  Peng, Mei-Ling, et al. “Influence/Impact of Lutein Complex (Marigold Flower and Wolfberry) on Visual Function with Early Age-Related Macular Degeneration Subjects: A Randomized Clinical Trial.” Journal of Functional Foods, vol. 24, 2016, pp. 122–130., doi:10.1016/j.jff.2016.04.006.
- –  “Lutein,” Examine.com, published on 11 November 2013, last updated on 14 June 2018,https://examine.com/supplements/lutein/