Krill Oil 500mg, 180 Softgels
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Krill Oil | 500 mg |
| Phospholipids16 systematic reviews · 355 randomised trials | 200 mg |
| Esterified Astaxanthin | 150 mcg |
Certifications & Testing
Other Ingredients
Bovine Gelatin, Glycerin, Water, Ethyl Vanillin
Recommended Use
One per day One small pill per day Suggested use: Take one (1) softgel daily, preferably with a meal.
Warnings
Caution: If you are pregnant or nursing, allergic to shellfish, taking medications, facing surgery, have bleeding problems or undergoing any other treatment that may affect the ability of blood to clot, consult your physician before taking this product. Caution: If you are pregnant or nursing, allergic to shellfish, taking medications, facing surgery, have bleeding problems or undergoing any other
Frequently Asked Questions
What is Kirkland Signature Krill Oil 500mg, 180 Softgels's Formulate score?
Kirkland Signature Krill Oil 500mg, 180 Softgels scores 76 out of 100 (grade B+) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Kirkland Signature Krill Oil 500mg, 180 Softgels worth it?
Kirkland Signature Krill Oil 500mg, 180 Softgels scores 76/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Kirkland Signature Krill Oil 500mg, 180 Softgels?
Each serving contains Krill Oil (500 mg), Phospholipids (200 mg), Esterified Astaxanthin (150 mcg). Serving size: 1 Softgel(s). 180 servings per container.
How do I take krill oil 500mg, 180 softgels?
One per day One small pill per day Suggested use: Take one (1) softgel daily, preferably with a meal.
Who makes Krill Oil 500mg, 180 Softgels?
Krill Oil 500mg, 180 Softgels is made by Kirkland Signature. See Formulate's full grade and product lineup for Kirkland Signature on its brand page.
Is Kirkland Signature Krill Oil 500mg, 180 Softgels third-party tested?
Kirkland Signature lists the following certifications and testing for this product: USP Verified.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.