Astaxanthin is most often referred to as “a free radical scavenger” because of it’s unmatched ability to neutrilaze free radicals. That is to say, by pairing up electrons, astaxanthin can eliminate the highly reactive state of atoms and molecules lacking an electron, free radicals.
However, astaxanthin performs a dual function against radicals, both donating and accepting electrons.
Because of this trait, the more accurate name to identify astaxanthin is . . . antiradical.
Welcome to our vocabulary antiradical.
Astaxanthin is the most effective antiradical in terms of its electron acceptor capacity while vitamin E is the most effective antiradical in terms of its capacity to donate electrons.
And holding the title of most powerful antioxidant, (substance that reduces the damage caused by oxidation). . . that would be astaxanthin, of course.