Prime Analytical Laboratories-tested peptides
Certificates of analysis from Prime Analytical Laboratories that peptide vendors publish: which vendors use the lab, which peptides it tested, and what it found. Prime Analytical Laboratories's website.
Accreditation
Accredited to ISO/IEC 17025 by PJLA certificate L25-238 (PJLA accreditation no. 119492); the published scope covers the kind of testing on peptide COAs.
Registered as Prime Analytical Laboratories, LLC, 4055 Nelson Ave., Concord, CA 94520.
Scope: Chemical: 'Raw materials and Finished Products - Identification, Purity and assay - USP <621> - HPLC' (generic; peptides not named). Endotoxin USP <85> is scoped to 'Water For Injection' only. No LC-MS/MS identity or sterility on scope (microbial limits, AET, B. cepacia are).
Valid until 2027-05-31.
Accreditation record · checked 2026-10-10. ISO/IEC 17025 is the standard for testing-lab competence; we check the accreditation body's own registry, not the lab's claim.
Vendors that publish Prime Analytical Laboratories reports
- Sigma Peptides 15 reports · Finnrick 73%
- Peptide-S 1 report · Finnrick 65% · COA concerns
- Longevity Plan 1 report · Finnrick 43%
Peptides tested by Prime Analytical Laboratories
- Tirzepatide 4
- Semaglutide 2
- BPC-157 + TB-500 2
- PT-141 1
- Tesamorelin 1
- GLOW 1
- CJC-1295 (no DAC) + Ipamorelin 1
- Cagrilintide 1
- BPC-157 1
- GHK-Cu 1
- MOTS-c 1
- TB-500 1
Latest Prime Analytical Laboratories reports
| Vendor | Peptide | Date | Purity | Measured vs label | |
|---|---|---|---|---|---|
| Sigma Peptides | Tirzepatide | 2026-03-19 | – | – | View (image) |
| Sigma Peptides | PT-141 | 2026-03-19 | – | – | View (image) |
| Sigma Peptides | Tesamorelin | 2026-03-19 | – | – | View (image) |
| Sigma Peptides | GLOW | 2026-03-18 | – | – | View (image) |
| Sigma Peptides | CJC-1295 (no DAC) + Ipamorelin | 2026-03-18 | – | – | View (image) |
| Sigma Peptides | Tirzepatide | 2026-03-11 | – | – | View (image) |
| Sigma Peptides | Cagrilintide | 2026-03-11 | – | – | View (image) |
| Sigma Peptides | BPC-157 | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | GHK-Cu | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | Semaglutide | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | MOTS-c | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | BPC-157 + TB-500 | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | TB-500 | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | Semaglutide | 2026-02-25 | – | – | View (image) |
| Sigma Peptides | Tirzepatide | 2026-02-25 | – | – | View (image) |
| Peptide-S | BPC-157 + TB-500 | 2025-01-13 | – | – | View (image) |
| Longevity Plan | Tirzepatide | – | – | – | View (image) |
Reports as published by vendors; numbers are shown where the document is readable text. A vendor's COA shows one tested sample, not every batch. Vendors banned for fake lab reports are excluded.