What are the key benefits of Astaxanthin found in Krill Oil? Astaxanthin is a super-antioxidant present in Krill Oil. Microalgae during the ocean generate large levels of astaxanthin which are then ingested through the krill, giving them the pinkish coloring. Astaxanthin is often a keto-carotenoid, like beta-carotene and lycopene, and is also regar