QÜELL^® Fish Oil offers supercritical CO₂ extracted oils in triglyceride form, manufactured exclusively for Douglas Laboratories^® and is unique among other fish oils due to its supercritical extraction, purity, bioavailability and concentration. Supercritical CO₂ extraction technology ensures that omega-3 fatty acids are extracted without high temperatures, oxygen or traditional chemical solvents. The result is a fish oil of exceptional purity that can deliver concentrated amounts of EPA and DHA in one serving. QÜELL^® Fish Oil EPA/DHA Plus D provides a 3:2 ratio of EPA to DHA plus 25 mcg (1,000 IU) of Vitamin D₃ per softgel.