NKO® Neptune Krill Oil Supports Heart Health & Cell Membrane Integrity NKO™ is an extract from Antarctic krill that contains cell membrane building blocks: highly unsaturated phospholipids co-functionalized with omega-3 fatty acids (EPA & DHA). Although beneficial for both men and women, NKO also supports temporary relief of PMS symptoms.100% Pure NKO™ manufactured by AKER BioMarine Antarctic AS.* 500 mg Softgels Option Available: 30, 60, 120 Suggested Use: 2 softgels daily with a meal. Allergies: Contains shellfish (krill).Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.