Significant research and discoveries on the possible roles of antioxidants in our health, in the aging process, and on specific diseases, have been made in the recent years and published in peer-reviewed scientific journals. As astaxanthin is one of the most potent and bio-active biological antioxidants found in nature, this abundance of research on antioxidants suggests a number of potential roles of astaxanthin for human health. Additional benefits could also result from astaxanthin properties other than its well-known antioxidant power.