North American Diagnostics
US laboratory named on certificates published by PSPeptides. Its domain was registered in June 2026, after certificates bearing its name first appeared, and it shares a registrar, nameservers and an email-account token with the vendor's domain. We could not establish its independence, so each certificate naming it scores a flat 2.0 out of 10, the score our rubric gives any certificate whose laboratory independence is not established, and it does not count toward the testing gate. Methods: HPLC purity, mass content, mass identification.
- Vendors with its COAs
- 1
Vendors with its COAs
- Peptides tested
- 12
Peptides tested
Tier D
United States
Checks run
- BusinessL1 Real business: Fail
- IndependentL2 Independence: Fail
- Verify routeL3 Verification route: Not checked
- MethodL4 Identity method: Partial
- Track recordL5 Track record: Fail
- AccreditedL6 Accreditation: Fail
Six published checks, the same for every laboratory. Results and evidence
About North American Diagnostics
North American Diagnostics is a laboratory name (United States) that we could not establish as an independent operating laboratory, rated tier D in the Peptide Source Review lab directory. No public ISO/IEC 17025 accreditation found; we could not establish this laboratory as independent of the vendor whose reports it issues. Because its independence is not established (tier D), each certificate naming it scores a flat 2.0 out of 10 and does not count toward the testing gate.
1 US peptide vendor in our audit publishes certificates naming North American Diagnostics, led by PSPeptides at 3.95/10. The reports cover HPLC purity, mass content, mass identification.
How we graded North American Diagnostics
Each check is the same for every laboratory (the rules). Checked 2026-10-22.
| Result | Check | What we found |
|---|---|---|
| Fail | L1 Real business | The site names no company, street address or staff (an email and phone only), and no registry entry was found.Evidence for L1 (opens in new tab)nadiagnostics.comchecked |
| Fail | L2 Independence | nadiagnostics.com was registered 2026-06-01, after a report dated 2026-03-22; its mail-ownership DNS record is identical to pspeptides.com's; all 19 certificates in our records are PSPeptides'.Evidence for L2 (opens in new tab)rdap.verisign.comchecked |
| Not checked | L3 Verification route | Not tested; not tier-deciding at tier D. |
| Partial | L4 Identity method | The site claims HPLC purity and LC-MS identity; not confirmed on a certificate.Evidence for L4 (opens in new tab)nadiagnostics.comchecked |
| Fail | L5 Track record | One client, with reports from March 2026.Evidence for L5 (opens in new tab)nadiagnostics.comchecked |
| Fail | L6 Accreditation | No accreditation was found on the PJLA, A2LA or ANAB registers.Evidence for L6 (opens in new tab)beta.pjview.comchecked |
No public ISO/IEC 17025 accreditation found; we could not establish this laboratory as independent of the vendor whose reports it issues
Vendors publishing North American Diagnostics certificates
Peptides tested here
Products whose certificate on a vendor page names North American Diagnostics. Compare sources for each.
Similar labs
Other tier D labs in our directory.
North American Diagnostics: Frequently Asked Questions
Is North American Diagnostics accredited?
We have not confirmed ISO/IEC 17025 accreditation for North American Diagnostics that is active on the accrediting body's register with a scope covering peptide testing (check L6). No public ISO/IEC 17025 accreditation found; we could not establish this laboratory as independent of the vendor whose reports it issues.
Which peptide vendors use North American Diagnostics?
1 vendor in our independent audit publishes certificates naming North American Diagnostics: PSPeptides. The full list with scores is on this page.
What does North American Diagnostics test for?
North American Diagnostics performs HPLC purity, mass content, mass identification on research-peptide samples.