Lutein + Zeaxanthin

Lutein and Zeaxanthin are two antioxidants from the carotenoid group called xanthophyll. They are the main parts of macular pigment, which is concentrated in the macula of the retina, the area responsible for fine-feature vision. Both work as antioxidants. They deactivate free radicals and filter harmful blue light, which can otherwise lead to oxidative stress, inflammation and damage to the visual system. In this way they protect healthy cells from oxidative stress, inflammation and free radical damage. Many electronic devices (mobile, tab etc.) give off significant amounts of high-energy blue light. The photosensitive retinal ganglion cells (pRCGs) can absorb this light, and that creates localized oxidative stress and damage. Laboratory studies with rats and humans show that extended exposure to blue light can actually speed up retinal cell death, inhibit melatonin and disturb the sleep-wake cycle. Lutein and zeaxanthin are believed to fight light-induced damage by absorbing the harmful wavelengths before they can form reactive oxygen species. They can help protect retinal cells by physically and chemically "quenching" these unstable molecules. Taken as nutritional supplements, they can also improve children's carotenoid status. Studies show the supplements are safe for children as young as preterm infants, and they can effectively increase plasma levels in infants and children. A number of studies show that, besides the benefits for vision, supplementation can improve cognitive performance during childhood. In studies with school-aged children (aged 7 to 10 years), researchers found that children with high macular pigment ocular density (MPOD) made the fewest errors on a memory task and performed best on reading, math, written language and achievement tests. Children with low MPOD (i.e., low levels of lutein and zeaxanthin in their brain) performed less well. Another study, using 10 mg Lutein and 2 mg Zeaxanthin for 180 days, showed significant increases in serum lutein levels, reduced eye strain (pain, headache) and fatigue, and improved cognitive performance (focus, episodic memory and learning, visuospatial working memory).