Certification status
USP Verified
Kirkland Signature Kirkland Signature CoQ10 300 mg Softgels
Kirkland Signature CoQ10 300mg is a high-strength CoQ10 softgel from Costco's own brand — a once-daily dose with no preservatives, artificial colours or flavours, and free from gluten and lactose. USP Verified, meaning it is independently checked for identity, purity, potency and manufacturing quality. Note it contains soybean oil.
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Why this certification matters
- USP Verified
- USP Verified products meet the United States Pharmacopeia standards for ingredient identity, potency, and manufacturing quality.
Frequently asked questions
- What does USP Verified mean?
- It means the product is independently checked for identity, purity, potency and manufacturing quality — a quality mark, not a banned-substance certification for tested sport.
- What format is it?
- A once-daily softgel at a high 300mg strength. CoQ10 is fat-soluble, so a softgel with an oil base is a common delivery.
- Does it contain allergens?
- Kirkland lists it as free from gluten and lactose, but it contains soybean oil, so it is not suitable for those avoiding soy.
- Who makes it?
- Kirkland Signature is Costco's own-label brand.
