Superior Absorption (rTG): Crafted in the re-esterified triglyceride (rTG) form, which has been shown to be 3x more absorbable than other standard fish oils (like ethyl esters). Other Ingredients: Highly Refined Fish Oil (Anchovy, Sardine, Herring, Mackerel), Bovine Gelatin, Glycerin, Purified Water, Natural Mixed Tocopherols.