Healthy Origins® Natural Astaxanthin is a carotenoid produced from Haematococcus pluvialis microalgae. Carotenoids are organic pigments that naturally occur in plants and other photosynthetic organisms. One of the most important carotenoids is astaxanthin. It supports healthy immune function, cardiovascular health, and eye and skin health. Each softgel delivers 4 mg of AstaPure® astaxanthin, along with vitamin A, vitamin E and lutein.