What are the many benefits of Astaxanthin located in Krill Oil? Astaxanthin is a brilliant-antioxidant present in Krill Oil. Microalgae within the ocean generate higher levels of astaxanthin which can be then ingested via the krill, giving them the pinkish coloring. Astaxanthin can be a keto-carotenoid, like beta-carotene and lycopene, and is parti