L-Carnosine - Neutralizes free radicals.
N-Acetyl-L-Carnosine (NAC) - Provides longer term activity in the eye.
L-Gluatathione - A powerful antioxidant that works in synergy with NAC.  Only in our formula.
Cysteine and Riboflavin - Recycles Glutathione to its active form
Ascorbic acid - Vitamin C