Science-Based Nutrition Dietary Supplement Non-GMO Gluten Free Soy Free Helps Support Visual Function and Neutralize Free Radicals Doctor's Best Lutein with FloraGLO supplies highly bioavailable carotenoids nutrients lutein and zeaxanthin from Marigold flowers. FloraGLO is manufactured with a proprietary process to ensure that the naturally-sourced lutein maintains its quality and consistency. It's the first lutein brand introduced into the global marketplace and the most clinically researched lutein in the world. Lutein and zeaxanthin are the major carotenoids found in the blood, and are highly concentrated in the retina of the eye. Constant exposure to ultra violet (UV) and blue light emitted from computers and mobile devices may potentially damage to the retinal cell. Lutein and zeaxanthin helps neutralize free radical to support healthy visual function, macular health, and cognitive acuity. Helps support visual function Helps absorb damaging blue light Helps support cognitive acuity Helps neutralize free radicals