TB-500 COA and purity data: 5 third-party test results
Across 5 third-party test results for TB-500, issued by independent laboratories between Dec 24, 2025 and Sep 3, 2026, documented HPLC purity ranged from 99.17% to 99.86%, with a mean of 99.52% and a median of 99.58%. The issuing laboratories were Accurate Test Labs and Freedom Diagnostics. Every certificate is published in full and linked below.
Every TB-500 result on one scale
Every TB-500 COA, newest first
| Report date | HPLC purity | Size | Laboratory | Identity (MS) | Certificate |
|---|---|---|---|---|---|
| Sep 3, 2026 | 99.26% | 10mg | Accurate Test Labs | Confirmed | Certificate (PDF) |
| Aug 19, 2026 | 99.17% | 10mg | Freedom Diagnostics | Confirmed | Certificate (PDF) |
| May 27, 2026 | 99.58% | 10mg | Freedom Diagnostics | Confirmed | Certificate (PDF) |
| Feb 18, 2026 | 99.859% | 10mg | Freedom Diagnostics | Certificate (PDF) | |
| Dec 24, 2025 | 99.721% | 10mg | Freedom Diagnostics | Confirmed | Certificate (PDF) |
Purity is the main-peak area percentage by high-performance liquid chromatography as reported by the laboratory. Identity was confirmed by mass spectrometry on 4 of these certificates. Figures are computed from the public archive each time the site is built, and nothing is left out: low results stay in the table. How to read a COA.
More on TB-500
- TB-500 in the catalogSizes, price and the current certificate
- TB-500 research monographStructure, mechanisms studied and molecular data
- Verify a batchMatch a vial label to its certificate
- All lab resultsThe aggregate dataset across every compound
Where can I see the COA for TB-500?
Every TB-500 certificate Eon Peptides holds is published on this page, 5 of them with a numeric HPLC result, each linking to the laboratory's own PDF. There is no login and no request form. The batch code on a vial label resolves to its certificate on the verify page.
Is TB-500 third-party tested?
Yes. Testing is carried out by Accurate Test Labs and Freedom Diagnostics, not by Eon Peptides, and the issuing laboratory is printed on every certificate. Across 5 published results the documented HPLC purity runs 99.17% to 99.86%.
What purity has TB-500 tested at?
In 5 documented third-party HPLC results on file, TB-500 tested between 99.17% and 99.86%, with a mean of 99.52%. Each result is a main-peak percentage reported by the laboratory named on that certificate.
Who tested TB-500?
Accurate Test Labs and Freedom Diagnostics. The laboratory is printed on each certificate; Eon Peptides does not test its own product.
How do I match a vial of TB-500 to its certificate?
Enter the batch code from the vial label on the verify page, or open the certificate for the matching report date in the table on this page.
For research use only. Not for human or veterinary use. These are analytical results for research materials and say nothing about use in people or animals.