Third-Party Tested Supplements: Reviewed Product Records

Last updated: September 8, 2026

Start with the exact product you plan to buy. A certification logo or a brand's reputation is a starting point; the registry record explains which product and program were actually reviewed.

We currently have reviewed product records for 3 brands on this page. This is the extent of our reviewed coverage, not the number of certified brands in the market. Missing records do not establish that another brand is untested.

Each listing shows its source and product scope. Broader brand scores remain unavailable until certification and regulatory coverage are complete. Read how our evidence method works.

Choose the right certification program

NSF/ANSI 173 includes label, toxicology and contaminant review. NSF Certified for Sport adds screening for substances prohibited in sport. These are distinct programs; a general NSF listing should not be presented as a Sport certification. Read NSF's program explanation.

Use the program named on the product and check its current directory. A manufacturing or facility credential is different from an individual product certification.

• NSF dietary supplement listings
• NSF Certified for Sport product search
• USP Verified product directory
• Informed Sport product search
• Informed Choice product search

Check the product category

A protein-powder listing does not establish certification for the same brand's creatine, vitamins or fish oil. Our category guides show only reviewed records whose product category matches the guide.

• Third-party tested creatine
• Third-party tested fish oil
• Third-party tested magnesium
• Protein-powder product checks

Before you buy

1. Match the full product name, formulation, flavor, size and market to the official listing.
2. Check the lot or batch when the program provides that information. An unlisted lot is a question to resolve with the certifier or manufacturer.
3. Read the actual scope. Certification does not establish that a supplement is suitable for your individual needs.
4. Keep regulatory history separate from certification. A missing recall record is not proof of a clean safety history.

Common questions

Which supplement brands are third-party tested?

Our current evidence covers selected products listed below. Certification applies to the product, program and variants named in the registry, not automatically to every product sold by a brand. Our review is incomplete.

Does a missing listing mean a supplement is untested?

No. Missing evidence in our directory means we have not established the claim in our reviewed records. Check the current certifier directory and ask the manufacturer for evidence for the exact product.

Why are some evidence scores unavailable?

We publish a score only when both certification and regulatory coverage have been reviewed. Selected product certifications can be displayed before that broader review is complete.

Guide text updated 2026-09-08. Individual evidence records show their own review dates.