Testing, certification, and facility claims: keep the questions separate
Supplement pages use several kinds of quality language. You may see ‘third-party tested,’ a certification mark, or a statement about the manufacturing facility. Those phrases do not all establish the same thing, and none should be turned into a patient outcome score.
This guide is a way to ask for the document behind the statement. The Folio records public claims as claims and does not pretend to have audited a laboratory, verified a certification directory, or tested a batch when we have not.
Name the product and the question
Ask whether the statement applies to the exact product and current version you are considering. A brand-wide description may not identify the preparation, size, or lot. If a testing claim matters to your decision, ask what was tested, by whom, and what document supports the statement.
Thorne’s creatine page displays an NSF Certified for Sport claim. Our record preserves that manufacturer-page claim; it does not describe it as an independently verified directory result. A current certifier listing is a separate source to check for the exact product.
Facility language is not product approval
FDA does not approve dietary supplements before they are marketed. A statement that a product is made in an FDA-registered facility should therefore not be rewritten as FDA approval of the supplement. Read the claim as written and ask what it establishes about the preparation you are considering.
The same distinction matters when a general clinical-service FAQ appears on a supplement page. Prescription services offered by a provider do not make every supplement in that provider’s store a prescription medicine. Identify the actual product category and label instead of relying on the surrounding site language.
Ask for evidence you can keep
A useful request names the product, the lot if relevant, and the kind of evidence sought. A batch report, certifier listing, or supplier statement should be described according to what it actually covers. Check the date and identity before connecting it to your purchase.
Testing can inform a quality discussion, but it does not decide whether a supplement suits your history or replaces prescribed care. Keep the current label, quality questions, and clinical questions together. The Folio’s pinned-record download is a starting reference, not a laboratory result or a treatment recommendation.
Before the next purchase.
- Does the statement apply to this exact product and version?
- What document supports the claim, and how current is it?
- What does the evidence establish—and what question remains for my clinician?
Source record
Public pages checked October 3, 2026. This is a source-based review, not a test purchase, taste test, certification audit, or clinician review. Published prices may change.
