QUALITY & TESTING
Proof, batch by batch.
Three layers of testing, with real lab reports.
Three layers of testing
We repeatedly test batches to ensure quality. Instead of relying on one report, we use three layers of checks. Certificates are published as each batch is tested.
Source testing
Our peptide source tests its material before it reaches us.
Independent repeated batch testing
We regularly send batches for testing at Freedom Diagnostics Testing, an independent US lab.
Community testing
Customers who run their own third-party tests send us their results, adding an outside check.
What the independent lab tests
Batches are repeatedly sent to Freedom Diagnostics Testing, an independent analytical laboratory in the USA. Each sample is tested for purity, endotoxins and heavy metals, and gets a Certificate of Analysis (COA) with a search code you can verify on the lab's own site.
High-performance liquid chromatography measures the share of the sample that is the target peptide.
Screens for bacterial endotoxins, a key contamination check for injectable-grade material.
Screens for arsenic, cadmium, lead and mercury against reporting limits.
Tested your own vials?
If you've had a PEP LABS product tested by an independent lab, send us the report at enquiry@peplabs.cc with your order reference. Community results help everyone.
We only quote figures shown on a published COA. Results apply to the sample tested.
SAMPLE CERTIFICATE OF ANALYSIS
Lab disclaimer, from the COA: results are specific to the sample provided. The heavy-metal screen covers As, Cd, Pb and Hg only.
COA library
Two columns per product: certificates commissioned by PEP LABS at Freedom Diagnostics Testing, and third-party certificates published by other buyers and labs for the same peptide. Every batch also ships with a source/supplier COA. Results are specific to the sample tested. PEP LABS certificates: 4 · Third-party linked: 27.
| Product | PEP LABS | Third party testing |
|---|---|---|
| Retatrutide 10mg | PEPL2609280008 (PDF) ↗ | Janoshik ↗ |
| Retatrutide 20mg | Coming soon | Janoshik ↗ |
| Retatrutide 30mg | Coming soon | Testides ↗ |
| Tirzepatide 10mg | Coming soon | Freedom / NovaLabs ↗ |
| Tirzepatide 20mg | Coming soon | Janoshik ↗ |
| HCG 5000IU | Coming soon | — |
| CJC/IPA 10mg | Coming soon | Freedom / Andres C ↗ |
| Ipamorelin 10mg | PEPL2609280006 (PDF) ↗ | Freedom / NovaLabs ↗ |
| CJC-1295 No DAC 10mg | Coming soon | — |
| Tesamorelin 10mg | PEPL2609280004 (PDF) ↗ | Freedom / NovaLabs ↗ |
| Tesamorelin 20mg | Coming soon | — |
| NAD+ 500mg | Coming soon | Freedom / Reviva ↗ |
| NAD+ 1000mg | Coming soon | Freedom / Peptidologix ↗ |
| Epithalon 10mg | Coming soon | Testides ↗ |
| MOTS-c 10mg | Coming soon | Janoshik ↗ |
| MOTS-c 20mg | Coming soon | — |
| SS-31 10mg | Coming soon | Freedom / NovaLabs ↗ |
| IGF-1 LR3 10mg | Coming soon | — |
| Glutathione (Pharm Grade) 1500mg | Coming soon | — |
| PT-141 10mg | Coming soon | Freedom / Reviva ↗ |
| Kisspeptin 10mg | Coming soon | Freedom / NovaLabs ↗ |
| Selank 10mg | Coming soon | Freedom / Peptidologix ↗ |
| Semax 10mg | Coming soon | Freedom / Peptidologix ↗ |
| Adamax 10mg | Coming soon | — |
| Glow 70mg | Coming soon | Freedom / NovaLabs ↗ |
| KLOW 80mg | PEPL2609280002 (PDF) ↗ | Freedom / NovaLabs ↗ |
| GHK-Cu 50mg | Coming soon | Freedom / NovaLabs ↗ |
| GHK-Cu 100mg | Coming soon | Freedom / NovaLabs ↗ |
| Thymosin Alpha-1 10mg | Coming soon | Freedom / Peptidologix ↗ |
| BPC-157 10mg | Coming soon | Freedom / NovaLabs ↗ |
| TB-500 10mg | Coming soon | Uzorak ↗ |
| Wolverine (BPC + TB) 10mg | Coming soon | Freedom / NovaLabs ↗ |
| Wolverine (BPC + TB) 20mg | Coming soon | Freedom / NovaLabs ↗ |
| KPV 10mg | Coming soon | Freedom / NovaLabs ↗ |
Need a specific certificate? Ask us.