vitamins A,C,E,RIBOFLAVIN,ZINC, SELENIUM and a bunch of other stuff thats suppose to be good for the eyes. It's probably the lutein and bilberry extract as these are said to be great for eyes health. I just found this worked for me. Some of the stuff it helps with are dry eyes, floaters, sunlight sensitive eyes it will most certainly clear the red out and brighten the eyes and it sure seems to be easier to focus on stuff the clarity is noticable improvement!