Klean Athlete
NSF Certified for Sport line · Mid-range
An athlete-focused brand whose products are NSF Certified for Sport — screened against substances banned by major sports organizations — making it a common pick for tested athletes.
Quality programmes this brand reports
As published by the brand. Where the certifier keeps a public registry — NSF, USP, Informed Sport — look up the specific product there: a company-wide claim is not a batch certificate.
Known for
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Klean Athletetesting & certifications — FAQ
Is Klean Athlete third-party tested?
Klean Athlete reports the following quality programmes: NSF Certified for Sport. NSF certification is an independent, third-party program that verifies a product actually matches its label. We reproduce what the brand publishes; where the certifier keeps a public registry (NSF, USP, Informed Sport), look the specific product up there before relying on it — a company-wide claim is not a batch certificate.
Is Klean Athlete NSF Certified for Sport?
Klean Athlete states that products carry NSF Certified for Sport. NSF Certified for Sport screens each batch against 280+ substances banned in sport and confirms the label is accurate.
How we assess supplement brands
Supplements aren't FDA recall-rated like prescription drugs, so we don't assign a recall-safety score here. Instead we report what a brand is independently verified for — NSF, NSF Certified for Sport, USP Verified, Informed Sport, cGMP, and batch testing — the signals that actually separate supplement quality. This is general reference, not medical advice; always consult a professional.