Astaxanthin is a naturally occurring carotenoid pigment found in certain marine organisms, most notably microalgae, salmon, trout, krill, and shrimp. It is responsible for the characteristic pink or reddish color of these species. As a potent antioxidant, astaxanthin is widely recognized for its exceptional free-radical scavenging activity, which is significantly stronger than that of many other antioxidants like vitamin C, vitamin E, and beta-carotene. Due to its powerful health-promoting properties, it is commonly used as a dietary supplement to support skin health, eye function, cardiovascular wellness, and athletic performance, as well as to reduce oxidative stress and inflammation.
