Krill Oil 500 mg by Kirkland Signature — Ingredients, Evidence & Safety

Product Label

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Label Data

1 Softgel(s) Serving Size

Other Combinations Product Type

0% Evidence Coverage

Supplement Facts — Evidence Check

Calories

5 Calorie(s)

Total Fat

0.5 Gram(s) (2% DV)

Cholesterol

12 mg (3% DV)

Krill Oil

500 mg

📊 Market median: 500.0mg (239 products)

Median 500.0mg This product: 500mg

Phospholipids

200 mg

Esterified Astaxanthin

150 mcg

📊 Market median: 4.0mg (47 products)

This product: 0.15mg

Other Ingredients

Bovine Gelatin Glycerin Water Ethyl Vanillin

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (88% of products) Nutrient (75% of products) Qualified Health (16% of products) Approved Health (2% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

One per day

One small pill per day

Suggested use: Take one (1) softgel daily, preferably with a meal.

⚠️ Warnings & Precautions

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.

Keep out of the reach of children.

Contains: Shellfish (Krill).

Important: Tamper-evident seal under cap. Do not use if printed seal is broken or missing.

🧪 Formulation Notes

Omega-3 + Astaxanthin

100% pure Krill Oil

No artificial colors No artificial preservatives No yeast, starch, gluten, lactose or trans fat

Superior Omega-3 (EPA+DHA) absorption compared to an equal amount of regular triglyceride fish oil.

Kirkland Signature Krill Oil supply is from 100% Antarctic Krill oil, which provides superior absorption. Sourced from the deep pristine waters of the Antarctic, each softgel is small and easy to swallow with no fishy aftertaste. Our krill contains 150 mcg naturally occurring astaxanthin, which is known to have antioxidant activity and gives the softgel its natural red color. The krill oil used is Friend of the Sea certified to protect the Antarctic eco-system. Kirkland Signature Krill Oil helps support: A healthy heart Antioxidant activity

Contains: Shellfish (Krill).

Additional Information

Helps support a healthy heart Superior absorption

No fishy odor or aftertaste

Comparison Fish Oil to Krill Oil Small Softgel Contains Omega-3 Fatty Acids Contains Omega-3 Phospholipids Contains Natural Astaxanthin No Fishy odor or aftertaste

Store at room temperature, tightly closed. Avoid excessive heat.

Quality purity potency

Friend of the Sea

Krill Oil Country of Origin is USA. Packed and quality tested in the USA.

Product Details

UPC / SKU 0 96619 63529 0

DSLD Entry Date 2019-09-24

Product Type Other Combinations

Form Softgel Capsule

Brand Kirkland Signature

DSLD ID 207339

Data Updated 2026-04-11

Research Evidence

6 Research Sources

42 Avg Quality Score

6 Clinical Trial

C Krill Oil for Pain in Elders

Clinical Trial ClinicalTrials.gov 2025

ClinicalTrials.gov

C Krill Oil and Resistance Exercise in Older Adults

Clinical Trial ClinicalTrials.gov 2023

ClinicalTrials.gov

C Changes in Muscle Strength, Inflammatory Markers, and Body Composition in Response to Alternate Day Fasting Combined With Krill Oil Supplementation in Adults With Overweight and Obesity

Clinical Trial ClinicalTrials.gov 2022

ClinicalTrials.gov

C Krill Oil as Supplementation to Healthy Young Adults.

Clinical Trial ClinicalTrials.gov 2014

ClinicalTrials.gov

C Effects of Krill Oil on Endothelial Function in Patients With Type 2 Diabetes Mellitus

Clinical Trial ClinicalTrials.gov 2012

ClinicalTrials.gov

C Investigation of Krill Oil in Women with Premenstrual Syndrome

Clinical Trial ClinicalTrials.gov 2012

ClinicalTrials.gov

View all evidence for Krill Oil →