4-Sight is a groundbreaking supplement for the care and support of the eyes. It contains the studied dosages of Lutein, Lycopene, Taurine, Lipoic Acid, Quercitin, NAC, Zeaxanthin, Zinc, Bilberry, and Ginkgo Biloba shown to make a therapeutic difference in eye health. Other eye formulas contain lower and ineffective amounts of these nutrients. For example, many contain only 6000 mcg (or less) of Lutein, while 4-Sight supplies 15,000 mcg! If you have eye health concerns, do not cheat yourself by taking an inferior product.