What exactly are the many benefits of Astaxanthin found in Krill Oil? Astaxanthin is an excellent-antioxidant existing in Krill Oil. Microalgae during the ocean generate high levels of astaxanthin which have been then ingested with the krill, providing them the pinkish coloring. Astaxanthin is really a keto-carotenoid, like beta-carotene and lycope