Based on the National Eye Institute's AREDS2 formula.Highest-potency Lutein and Zeaxanthin on the market - for building macular pigment optical density (MPOD) at a faster rate.Highest-quality ingredients, including 25mg Zinc, natural source Vitamin E and highly absorbable FloraGLO® brand Lutein.Also includes proprietary eye-doctor-formulated blend of newly researched nutrients.20 years ocular health experience.