text:  of the right type of astaxanthin, and you really feel it. By one measure of antioxidant activity called singlet oxygen quenching activity, astaxanthin is 800 times stronger than CoQ10. And this was published in 2007 in a journal called Carotenoid Science. Another study found that astaxanthin is 6,000 times stronger than vitamin C as an antioxidant, again, in its singlet oxygen scavenging capacity. So it's incredible.