The main active ingredients in marigold extract is lutein. Lutein--one of the most common Carotenoids widely presented in plants especially dark-green leafy vegetables. Lutein is synthesized only by plant itself and like other xanthophylls which is usually found in green leafy vegetables such as spinach, kale and Marigold Flower. In green plants, lutein act as modulate light energy and serve as a non-photochemical quenching agents to deal with triplet chlorophyll (an excited form of chlorophyll), which is over produced at very high light levels, during photosynthesis. Lutein is also a very important natural yellow pigment in our lives due to its color.