Astaxanthin is a powerful antioxidant that occurs naturally in certain algae and gives salmon, shrimp, and other shellfish their characteristic pink-red color. As a dietary supplement, astaxanthin is highly regarded for its many health benefits, including supporting eye health, improving endurance and muscle function, and helping to reduce inflammation and protect against oxidative stress. Astaxanthin is unique in that it can cross the blood-brain barrier and the blood-retinal barrier, providing antioxidant protection directly to the eyes, brain, and central nervous system. This makes astaxanthin an excellent supplement for those looking to improve their overall health and well-being.