Pure Encapsulations, Bilberry 160 mg, 120 CapsulesBilberry extract contains anthocyanidins with visual and vascular enhancing properties. Bilberry moderates visual fatigue and supports light to dark adjustment through its affinity for the rhodopsin opsin system, the pigment system which mediates both light and dark vision and visual adaptation to bilberry (Vaccinium myrtillus) extract 160 mg., (standardized to contain 25% anthocyanosides) , Vitamin C (as ascorbyl palmitate) 6 mg., (hypo allergenic