Squalene Oil (internal capsules) contain shark liver extract which acts as an antioxidant, oxygenates the system, helps boost immune function and facilitates detoxification. Natural Deep Sea Shark Liver Oil Extract Product of Japan. Our Squalene is 99.9% pure and extracted from liver oil of Aizame (dogfish) sharks, who inhabit non-polluted waters at depths of 3000 feet. This superior natural oil is a product of Japan. Great care is taken in its preparation to insure potency and stability.