Tag: Nsf international

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.

With the global dietary supplement market projected to reach $308 billion by 2028, ensuring product safety and quality is crucial [1.4.1]. This article answers 'What is the best 3rd party supplement testing?' by comparing top certification bodies that verify what's inside your supplements.