Unlike 99% of the Astaxanthin that is on the market which is synthetic, FREZZOR Astaxanthin is all-natural extracted from Algae and the antioxidants found in the FREZZOR Astaxanthin is 6,000 times more powerful than Vitamin C, 550 times more powerful than Green Tea. Experts believe that antioxidants prevent free-radicals from causing injury and damage. Free radicals are naturally-occurring toxic molecules. Our 100% natural FREZZOR Astaxanthin is by far the most powerful antioxidant discovered so far.