What are the main advantages of Astaxanthin present in Krill Oil? Astaxanthin is a super-antioxidant existing in Krill Oil. Microalgae while in the ocean generate significant levels of astaxanthin which might be then ingested through the krill, supplying them the pinkish coloring. Astaxanthin is really a keto-carotenoid, like beta-carotene and lyco