Naturally Sourced Dietary Zeaxanthin can be availed either in a non esterified or an esterified form. The Dietary Zeaxanthin does not contain zeaxanthin esters. The Dietary Zeaxanthin helps provide the clinically proven benefits of the zeaxanthin nutrient the way nature intended. The Naturally Sourced Dietary Zeaxanthin is a protective anti oxidant that the bodies need to help keep our eyes healthy.