Sardine oil contain high concentration of EPA but low of DHA while shark is reverse. Shark oil high contain of DHA and squalene but low EPA. This research aim to fortify the quality of fish oil withomega-3 and squalen and improve the quality of fish oil. The combination of fish oil (sardine:shark) 1: 1, 1: 2, 1: 3, 1: 4, 2: 1, 3: 1 and 4:1 showed significant results on peroxide, anisidine, and total oxidation value, however free fatty acids analysis did not show the influence to the content value. The best oxidation parameters value werefound (sardine: shark) (1:4) with peroxide was 5.44±0.06 mEq/kg, anisidine was 8.3±0.72 mEq/kg and total oxidation was 19.27±0.7mEq/kg. Fatty acids profile between sardines and shark oil containedvario...