Lutein from OptiLut, 10mg - 120 vcaps

What is Doctor's Best Lutein?
Doctor's Best Lutein maintains healthy visual function, supports macular pigment density and supports cognitive acuity. OptiLut is 100% natural Lutein concentrate obtained from Marigold extract (Tagetes erecta) through a purification process without any chemical transformation. It supplies highly bioavailable, natural source of lutein and zeaxanthin esters. Lutein and zeaxanthin are two of the major carotenoids found in humans, and are highly concentrated in the retina of the human eye. Lutein is a major carotenoid found in human blood, with a high concentration in the retina of the human eye. Both lutein and zeaxanthin work synergistically to promote eye health. Lutein and zeaxanthin are also potent free radical neutralizers that contribute to the body's spectrum of antioxidant defenses.

How does it work?
Most of the beneficial effects of xanthophylls, such as lutein, are ascribed to their ability to quench reactive oxygen species and scavenge other free radical substances that are either taken in from the environment or generated internally by natural metabolic processes. There is evidence for the free radical scavenging activity of lutein is in studies of its effects on human lens epithelial cells. In one such study, cell cultures were exposed to ultraviolet (UV) light after