Complete certificate of analysis archive
We publish third-party certificates of analysis for the compounds we have had independently tested. Each certificate below is reproduced in full, including the chromatogram and mass spectral data, exactly as issued by the laboratory. No account or purchase is required to view them. This page is updated as further testing is completed.
The Retatrutide report below was issued by Freedom Diagnostics. The Tesamorelin, Semax, and GHK-Cu reports were issued by Krause Analytical LLC. Krause certificates can be verified directly with the laboratory at krauselabs.com/coa-verification using the lab reference number.
Current certificates of analysis
Retatrutide, 10mg
| Lab reference | 2606230154 |
| Chromatographic purity | 99.86% |
| Quantity found | 11.54 mg |
| Mass spectral match | Confirmed |
| Sample received | 23 June 2026 |
| Report issued | 25 June 2026 |
| Testing laboratory | Freedom Diagnostics |
Download Retatrutide 10mg certificate of analysis (PDF)
View the Retatrutide, 10mg product page
Tesamorelin, 10mg
| Lab reference | 210665 |
| Chromatographic purity | >99.9% |
| Quantity found | 9.10 mg (91.0% of label claim) |
| Mass spectral match | ID confirmed |
| Analysis date | 6 August 2026 |
| Report issued | 10 August 2026 |
| CAS | 218949-48-5 |
Download full certificate (PDF)
View the Tesamorelin, 10mg product page or read our research overview.
Semax, 10mg
| Lab reference | 210667 |
| Chromatographic purity | 99.2% |
| Quantity found | 9.47 mg (94.7% of label claim) |
| Mass spectral match | ID confirmed |
| Analysis date | 8 August 2026 |
| Report issued | 10 August 2026 |
| CAS | 80714-61-0 |
Download full certificate of analysis (PDF)
View the Semax, 10mg product page or read our research overview.
GHK-Cu, 100mg
| Lab reference | 210666 |
| Chromatographic purity | 98.9% |
| Quantity found | 105 mg (105.3% of label claim) |
| Mass spectral match | ID confirmed |
| Analysis date | 6 August 2026 |
| Report issued | 10 August 2026 |
| CAS | 49557-75-7 |
Download full certificate of analysis (PDF)
View the GHK-Cu, 100mg product page or read our research overview.
What these numbers mean
Chromatographic purity is the proportion of the sample that is the target compound, measured by HPLC. It does not by itself confirm that the compound is what the label says.
Mass spectral match confirms identity by molecular weight. Purity and identity together are stronger evidence than either alone.
Quantity found is the actual measured content of the vial against the label claim. A vial can be highly pure and still be underfilled, which is why we publish this figure rather than purity alone.
For a fuller explanation, see our guide to reading certificates of analysis and HPLC purity testing.
Why Third-Party Testing Matters
Transparency is critical for precise and reproducible research. That is why every single batch undergoes rigorous independent testing before it reaches your lab. Relying on a third-party certificate of analysis ensures that there is no bias in the reporting of purity and yield. In the field of synthetic research compounds, impurities or degraded products can significantly skew experimental results. By partnering with independent testing laboratories, we guarantee that the data you see is exactly what was measured, providing absolute confidence in your experimental design.
All products are supplied strictly for laboratory research use. Not for human or veterinary consumption. See our RUO disclaimer.
Understanding Our Testing Methodology
Our standard certificate of analysis includes results from High-Performance Liquid Chromatography coupled with Ultraviolet and Mass Spectrometry detection (HPLC-UV/MS). This dual-approach methodology is the gold standard for peptide analysis. The HPLC separates the components of the mixture, allowing the UV detector to quantify the exact chromatographic purity of the target compound.
Meanwhile, the Mass Spectrometer verifies the identity of the compound by confirming its exact molecular weight, ensuring no structural errors occurred during synthesis. Together, these data points provide a comprehensive profile of the compound’s integrity, ensuring you are working with the highest grade materials available.
Calculating Reconstitution Volumes
It is also important to note that the quantity found reflects the lyophilized (freeze-dried) compound content. Minor variations in the lyophilization process can lead to slight visual differences in the size or shape of the material inside the vial. Because visual inspection is not an accurate indicator of mass, actual measured content is a far more reliable metric. Always refer directly to the certificate of analysis for the definitive net weight when calculating your reconstitution volumes.