Every batch of our research peptides undergoes independent third-party analytical testing at Freedom Diagnostics, an accredited laboratory specializing in HPLC (High-Performance Liquid Chromatography) and LC-MS (Liquid Chromatography – Mass Spectrometry). Endotoxin verification is performed using USP <85> and USP <161> pyrogen methodologies.
Each Certificate of Analysis below represents the most recent batch tested and is provided to support the scientific rigor of your research. These products are for laboratory research use only and are not intended for human or veterinary use.
HPLC / LC-MS Purity Results
Every compound is analyzed by Freedom Diagnostics using High-Performance Liquid Chromatography (HPLC) and Liquid Chromatography – Mass Spectrometry (LC-MS) to confirm identity and quantify purity.
| Compound | Strengths Tested | Purity (HPLC) | Laboratory | Certificate |
|---|---|---|---|---|
| Retatrutide | 10 mg, 20 mg, 30 mg | 99.466% | Freedom Diagnostics | View PDF |
| Tirzepatide | 10 mg, 20 mg, 30 mg, 40 mg, 50 mg | 99.745% | Freedom Diagnostics | View PDF |
| BPC-157 | 10 mg | 99.04% | Freedom Diagnostics | View PDF |
| NAD+ | 500 mg | 99.795% | Freedom Diagnostics | View PDF |
| GHK-Cu | 50 mg, 100 mg | 99.9% | Freedom Diagnostics | View PDF |
USP <85> / USP <161> Pyrogen Results
Bacterial endotoxin testing (BET) is performed against the pyrogen thresholds defined in USP <85> and USP <161>. Only compounds for which an endotoxin certificate is currently on file are listed below.
| Compound | Result | Method | Laboratory | Certificate |
|---|---|---|---|---|
| Retatrutide | ✓ Pass | USP <85> BET | Freedom Diagnostics | View PDF |
| Tirzepatide | ✓ Pass | USP <85> BET | Freedom Diagnostics | View PDF |
Compounds without an endotoxin certificate currently on file are tested on a per-batch basis on request. Contact our research team for batch-specific endotoxin data.
About Our Testing Partner
Freedom Diagnostics is an independent analytical laboratory that has tested every compound listed in the table above. HPLC and LC-MS are the industry-standard techniques for confirming peptide purity, sequence identity, and the absence of residual impurities. Endotoxin testing confirms that the final product meets the pyrogen thresholds defined in USP <85>.
Batch numbers, test dates, and the full analytical methodology are printed on each PDF. If you need an older batch certificate or additional analytical data, contact our research team.