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Tag: Is kirkland nsf certified

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Is Kirkland NSF Certified? The Truth About Costco's Supplement Verification

4 min read
Many consumers look for third-party seals to verify supplement quality. While some Kirkland Signature products, like cookware, are NSF certified, the key question for their medications and supplements is: **Is Kirkland NSF certified?** The answer is that they predominantly use a different, equally rigorous certification: USP.