FREZZOR Omega-3 Black is a “complete” antioxidant supplement. To qualify as a “complete” antioxidant supplement it needs to contain both lipid soluble antioxidants and water soluble antioxidants, and FREZZOR Omega-3 Black has both. Our Astaxanthin in our FREZZOR Omega-3 Black formulation represents the lipid soluble antioxidant and our grape seed extract , kiwifruit seed extract, boysenberry extract, and blackcurrant extract represents the water soluble antioxidant that is required. – Dr. Glenn Vile