Haematococcus Pluvialis (Astaxanthin, BioAstin®) • An extremely powerful carotenoid shown to be up to 500 times as powerful as antioxidant vitamin E in free radical absorption. Currently being studied for its ability to protect against UV-induced damage. Gives salmon and flamingos their characteristic pink color. derma e® uses astaxanthin harvested from microalgae off the coast of Hawaii.