Built on transparency.
Where a batch has been independently analysed, the certificate is published here in full. Where no certificate has been issued, we say so rather than implying one exists.
Each batch, assessed on its own merits.
We don't rely on generic paperwork, recycled certificates or supplier claims alone. Testing is carried out independently, and each published result is tied to the batch number printed on your vial. Products with no published certificate are labelled accordingly on their product page.
Independent verification
Testing is carried out by independent analytical laboratories with no stake in the result — not assessed in-house, not self-certified. Certificates are published only where such testing records exist.
Batch-specific COAs
Each published Certificate of Analysis relates to a single production batch — never a reused or generic document. Not every product currently has one.
Controlled handling
Stored, handled and dispatched under controlled procedures from intake through to release — not tested once and forgotten.
What a published certificate typically covers
- HPLC purity analysis — the measured result is reported on each batch certificate
- Mass spectrometry identity confirmation
- Endotoxin screening where included on the certificate
- Heavy metal screening where included on the certificate
- Unique batch reference assigned
- Batch-specific Certificate of Analysis
Certificate of Analysis
Select a compound to view its batch-specific Certificate of Analysis, including verified identity, purity, endotoxin and heavy metal testing.
Choose a compound above to load its certificates.
Clear data, not vague claims.
A purity percentage on a listing page is a claim. A batch number tied to a batch-specific certificate is data. That's the difference this page is built around — every step opposite is something you can check yourself.
How to verify a batch yourself
- 1Find the batch number on your vial label or Certificate of Analysis.
- 2Match that batch number against the certificate listed on this page.
- 3Compare the reported purity, identity and screening results.
- 4If anything doesn't match, contact us at admin@kpeptides.uk before use.
Our verification standard
This is the verification standard we work to. Coverage is shown per product: a certificate is displayed only where one has actually been issued.
| Category | KPeptides | Typical supplier |
|---|---|---|
| Purity | HPLC result reported per batch | Often unstated or generic |
| Identity | MS confirmed | Not always confirmed |
| Endotoxins | Screened | Often not included |
| Heavy metals | Screened | Often not included |
| Testing | Independent laboratory | Supplier only |
| Documentation | Batch-specific COA | Generic COA |
| Traceability | Full batch traceability | Limited |
| Verification basis | Independent analytical data | Supplier claims |
Verification doesn't end after dispatch.
Where a Certificate of Analysis has been issued, it remains available after dispatch alongside handling and batch documentation.
Research use only
Research Use Only. All products supplied by this website are intended strictly for in-vitro laboratory research by qualified professionals. They are not medicines, food, cosmetics or consumer products, and are not for human or veterinary consumption, ingestion, injection or any form of administration.