// transparency
Show the receipts.
Every Pepmod batch is independently tested by a third-party analytical lab. The certificate of analysis is published on this page. If you can’t find a COA, the batch doesn’t exist.
// what we test for
Identity
LC-MS / MALDI-TOF
Mass spectrometry confirms the peptide is what we say it is. The exact molecular weight, no substitutions.
Purity
RP-HPLC
Reverse-phase high-performance liquid chromatography. A single dominant peak with no significant truncations or related impurities.
Sterility
USP <71>
No bacterial or fungal growth in 14-day incubation. Pharmaceutical-grade sterility, not just visual inspection.
Endotoxins
LAL / kinetic-chromogenic
Bacterial endotoxin units measured against pharmacopeial limits. The reading peptide brands rarely publish.
// sample certificate of analysis
What you’ll see, batch after batch.
This is an illustrative per-vial COA for a BPC-157 production batch. Each vial in a stack ships with its own COA. The exact layout and lab partner may vary; the test methods and reporting standards do not.
// certificate of analysis
Independent Bioanalytical Lab
CLIA-accredited · ISO/IEC 17025
document
COA-PEP-BPC-2604-001
// product
- Product
- BPC-157 (5mg vial)
- SKU
- PEP-BPC-5MG
- Lot
- BPC-260422-A
- Mfg date
- 04-2026
- Tested
- 04-22-2026
- Expiry
- 04-2028
// hplc chromatogram
RP-HPLC · 220 nm
// results
| test | method | spec | result | status |
|---|---|---|---|---|
| Identity | LC-MS | [M+H]+ = 1420.5 ± 0.3 | [M+H]+ = 1420.6 | pass |
| Purity | RP-HPLC | ≥ 98.0% | 99.4% | pass |
| Water content | Karl Fischer | ≤ 6.0% | 3.8% | pass |
| Acetate | IC | ≤ 12.0% | 8.1% | pass |
| Endotoxin | LAL | < 5 EU/mg | < 0.5 EU/mg | pass |
| Sterility | USP <71> | No growth | No growth (14d) | pass |
// hover or focus a row to annotate it
analyst
Dr. M. Reyes, PhD
Senior Bioanalytical Chemist
released
2026-04-25
// illustrative example. real batch COAs will replace this once production begins.
// how to read it
What actually matters on a COA.
Purity ≥ 98% is the floor. Anything below 95% in peptides this size means meaningful truncated chains or byproducts. A reputable lab will publish to one decimal.
Endotoxin below the pharmacopeial limit. Almost no consumer peptide brand publishes endotoxin data. The threshold matters because parenteral products with high endotoxin trigger immune responses regardless of the peptide’s effects.
Identity confirmed by mass spec. “HPLC purity” alone tells you the sample is pure - not that it’s the right molecule. Mass spectrometry confirms the molecular weight matches expected.
Lot & date traceability. Every COA should match a specific lot number that ties to the vial in your hand. If the lot doesn’t match, the COA is decorative.
// tested. published. accountable.