I have been buying it for a couple of months. Seen improvement in vision. However, I will have to try others as I am a diabetic ( just diagnosed), and there's maltodextrin... I am trying to eliminate all sorts of "sugar", hopefully to do a remission.
I have ordered it due to its relatively high contents of Zeaxanthin (4 mg) while some other offers have only lower values as only of, say, 1 mg. These facts determined my choice. Suppose, the relationship price vs quality is good enough. As for ingredients, one would have to add some other vitamins like A, B, C, Tocopherols, Zinc in order just to support your eyes.
This, in conjunction with other vision supplements works great for me. I find most eye/vision supplements/vitamins are lacking on their own. When I add this to my daily routine, I notice a definite improvement--regarding focusing and clarity etc...
The product is good and works as described. My sole problem with it is that the capsules have a slight medicinal odour, which makes me feel nauseous. If you don't have problems problem with such smells, this product will be perfect for you.