CoQ10 300 mg., 100 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
Certifications & Testing
Other Ingredients
Soybean Oil, Coenzyme Q10, Gelatin, Glycerin, Soy Lecithin, Silica
Recommended Use
Suggested use: Take one (1) softgel daily or as directed by a physician.
Warnings
Contains: Soy. Caution: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Keep out of the reach of children. Note: CoQ10 is not intended to serve as a replacement for Statin therapy, nor should you discontinue taking any prescribed medications while supplementin
Frequently Asked Questions
What is Kirkland Signature CoQ10 300 mg., 100 Softgels's Formulate score?
Kirkland Signature CoQ10 300 mg., 100 Softgels scores 89 out of 100 (grade A) 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 CoQ10 300 mg., 100 Softgels worth it?
Kirkland Signature CoQ10 300 mg., 100 Softgels scores 89/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party 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 CoQ10 300 mg., 100 Softgels?
Each serving contains Coenzyme Q10 (300 mg). Serving size: 1 Softgel(s). 100 servings per container.
How do I take coq10 300 mg., 100 softgels?
Suggested use: Take one (1) softgel daily or as directed by a physician.
Who makes CoQ10 300 mg., 100 Softgels?
CoQ10 300 mg., 100 Softgels is made by Kirkland Signature. See Formulate's full grade and product lineup for Kirkland Signature on its brand page.
Is Kirkland Signature CoQ10 300 mg., 100 Softgels third-party tested?
Kirkland Signature lists the following certifications and testing for this product: USP Verified, Gluten-Free.
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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.