How do I verify a Peptides Lab certificate of analysis?

Every Janoshik report includes a unique verification key. Copy the key from the report card and enter it on the Janoshik verification page to confirm the report is authentic.

Which peptides are third-party tested?

We publish COAs for the batches we send for independent HPLC analysis. Current reports cover BPC-157, TB-500, Ipamorelin, CJC-1295 no DAC, PT-141, Retatrutide and AOD-9604, with more added as new batches are tested.

What does HPLC purity mean on a peptide COA?

HPLC purity is the percentage of the sample that eluted as the target peptide peak. It is one of the standard analytical measures researchers use to assess batch identity and consistency.

Certificates of Analysis

Independent third-party test reports for Peptides Lab SA peptide batches, issued by Janoshik Analytical. Each report lists the measured content and HPLC purity, and carries a unique key you can check directly on the lab's own verification page.

Current reports: BPC-157, TB-500 (TB-4), Ipamorelin, CJC-1295 (mod GRF 1-29), AOD-9604, PT-141, Retatrutide.

BPC-157 — 99.475% purity

BPC-157 10 mg

Compound: BPC-157
Purity: 99.475%
Measured content: 10.59 mg
Laboratory: Janoshik Analytical
Report: #222693
Analysed: 31 August 2026
Verification key: XVDK1NUYTVZX

Verify at Janoshik View BPC-157

TB-500 (TB-4) — 98.391% purity

TB-500 10 mg

Compound: TB-500 (TB-4)
Purity: 98.391%
Measured content: 10.50 mg
Laboratory: Janoshik Analytical
Report: #222698
Analysed: 31 August 2026
Verification key: 6BGHG9S3QTXR

Verify at Janoshik View TB-500 (TB-4)

Ipamorelin — 99.561% purity

Ipamorelin 10 mg

Compound: Ipamorelin
Purity: 99.561%
Measured content: 12.15 mg
Laboratory: Janoshik Analytical
Report: #222699
Analysed: 31 August 2026
Verification key: WGIB3Y6LL55T

Verify at Janoshik View Ipamorelin

CJC-1295 (mod GRF 1-29) — 97.370% purity

CJC-1295 no DAC 5 mg

Compound: CJC-1295 (mod GRF 1-29)
Purity: 97.370%
Measured content: 5.11 mg
Laboratory: Janoshik Analytical
Report: #222694
Analysed: 31 August 2026
Verification key: PP53ECSR6PW3

Verify at Janoshik View CJC-1295 (mod GRF 1-29)

AOD-9604 — 99.046% purity

AOD 9604 5 mg

Compound: AOD-9604
Purity: 99.046%
Measured content: 0.69 mg
Laboratory: Janoshik Analytical
Report: #222697
Analysed: 01 September 2026
Verification key: 67Q9KPQ6YKYU

Verify at Janoshik View AOD-9604

PT-141 — 99.852% purity

PT-141 10 mg

Compound: PT-141
Purity: 99.852%
Measured content: 11.77 mg
Laboratory: Janoshik Analytical
Report: #222696
Analysed: 31 August 2026
Verification key: VDU982ZKXTF7

Verify at Janoshik View PT-141

Retatrutide — 99.906% purity

Reta-GLP3 30 mg

Compound: Retatrutide
Purity: 99.906%
Measured content: 33.39 mg
Laboratory: Janoshik Analytical
Report: #222695
Analysed: 31 August 2026
Verification key: H6XG27BNCBLE

Verify at Janoshik View Retatrutide

How to read these reports

The purity figure is the percentage of the sample that eluted as the target peak under HPLC. The measured content is the actual mass of peptide found in the vial against the labelled amount. Every report can be checked independently using its verification key on the testing lab's site, so you are not relying on our word for it.

Our testing process Request batch documentation

Frequently asked questions

How do I verify a Peptides Lab certificate of analysis?: Every Janoshik report includes a unique verification key. Copy the key from the report card and enter it on the Janoshik verification page to confirm the report is authentic.
Which peptides are third-party tested?: We publish COAs for the batches we send for independent HPLC analysis. Current reports cover BPC-157, TB-500, Ipamorelin, CJC-1295 no DAC, PT-141, Retatrutide and AOD-9604, with more added as new batches are tested.
What does HPLC purity mean on a peptide COA?: HPLC purity is the percentage of the sample that eluted as the target peptide peak. It is one of the standard analytical measures researchers use to assess batch identity and consistency.