What is third-party testing?
Third-party testing is analysis performed by an independent laboratory that has no stake in the sale of the material. The lab measures purity and identity and issues a Certificate of Analysis under its own name.
The defining feature is independence: the entity reporting the result is not the entity selling the product, and the certificate identifies which lab did the work.
How does it differ from in-house grading?
Not all quality claims are equivalent. The distinction is who performed the measurement and whether it can be checked.
| In-house / unnamed claim | Independent third-party | |
|---|---|---|
| Who measures | The seller | An independent laboratory |
| Named on the COA | Often not | Yes — the lab is identified |
| Conflict of interest | Higher | Lower |
| Verifiable | Hard to confirm | Traceable to a named lab and batch |
Which laboratories test each batch?
Each batch is tested by an independent analytical laboratory, and the Certificate of Analysis names the lab that tested your specific batch — no in-house grading and no unnamed sources. The laboratories used are Janoshik Analytical and Freedom Diagnostics.
What does each batch get tested for?
Independent testing covers the same two properties a complete Certificate of Analysis reports: purity and identity.
- Purity — quantified by HPLC against the stated purity standard
- Identity — confirmed by mass spectrometry against the expected molecular weight
- Batch traceability — results tied to a lot number that matches the vial