From the Manufacturer:
Tri-Shield® softgels proprietary formula contains 100% pure Neptune Krill Oil (NKO®)†, which comes from a small shrimp-like crustacean harvested in the Antarctic. Tri-Shield® features three significant groups of heart-healthy compounds: Omega-3 fatty acids, phospholipids, and antioxidants such as astaxanthin that provide enhanced nutrient absorption and a powerhouse of antioxidants.
Provides powerful antioxidant protection.*
Helps maintain cholesterol and triglyceride levels already within the normal range.*
Protects health of cell membranes.*