Sourced from algae, Astaxanthin is a powerful antioxidant which may provide several health benefits to the body. As one of the few antioxidants that can cross the blood-brain barrier and the blood retinal barrier in the eyes, Astaxanthin may especially help with brain and vision health.*Astaxanthin, a naturally occurring xanthophyll carotenoid, acts as a potent antioxidant. It distributes itself across the cellular membrane, going from the outside of the cell to the cytoplasm inside -- this allows it to act as a barrier to oxidative stress and reactive oxygenspecies.*This antioxidant can have several health benefits. Taking Astaxanthin may help to improve Age-Related Macular Degeneration (AMD) as it can help with the damage in the center of the retina in those with AMD. It may also help reduce muscle damage and soreness caused by physical exercise. EyeScience Astaxanthin is made with AlphaXanthin, cold pressed form of astaxanthin that is 100% pure Haematococcus pluvialis the richest source of natural astaxanthin. The proprietary pressing process of AlphaXanthin has no extraction step, making it the only astaxanthin of its kind.