Super Anti-Oxidant Vegan Certified Dietary Supplement Astaxanthin is one of the most powerful antioxidants yet discovered. Astaxanthin is a member of the carotenoid family of compounds. As an antioxidant, it has been shown to be up to 550 times more powerful than vitamin E and more than 30 times as potent as beta-carotene and, in ORAC testing to be 5 times more potent than Lutein. The astaxanthin used in this product is natural (not synthetic) and is manufactured from microalgae haematococcus pluvialis grown in closed culture using ultra-pure water.