Astaxanthin is a unique carotenoid compound found in abundance in marine environments, particularly in algae. Astaxanthin is what gives red algae its colour and subsequently salmon their pink flesh when they consume the algae. Astaxanthin is considered a far more powerful antioxidant than beta-carotene or vitamin E, because unlike most other antioxidants, it does not create a free radical itself after quenching one, and can therefore quench numerous radicals in a row. This allows it to protect cell membrane lipids from free radical damage.

The ability of astaxanthin to reduce eye fatigue related to computer usage is well-established. It has also been shown to help reduce blood sugar and blood pressure, and to help reduce gastric pain and heartburn related to digestive upset. Several studies have also found astaxanthin to increase muscular endurance, improving sports performance.

Astaxanthin is a unique and powerful antioxidant with a range of additional benefits for the eyes, the heart and physical endurance. Its broad range of uses makes it a supplement that can be taken by almost anyone seeking to protect their body in our modern, visually intensive environment.