BPC-157 COA: how to read the certificate of analysis
A BPC-157 certificate of analysis is the only document that ties the powder in a vial to a measured result. Here is exactly what to check, field by field, before you accept a batch for bench work.
Research use only. Every compound referenced here is a laboratory reference material supplied to qualified researchers and institutional laboratories. None are medicines, supplements or consumer products, and none are for human consumption.
BPC-157 is one of the most widely studied repair-pathway peptides, and also one of the most frequently relabelled. Because the lyophilized powder inside a sealed vial cannot be identified by eye, the certificate of analysis is the only evidence a laboratory has that the material is what the label says it is. That makes reading the document correctly more important than any single number printed on it.
This guide walks through a BPC-157 COA in the order a reviewer should read it: identity first, then purity, then quantity and handling, then the traceability that connects all three to a physical lot.
What a BPC-157 certificate of analysis must contain
A usable COA is a lot-specific analytical record, not a product brochure. Every field below should be present and specific to the batch you received.
- Compound name and full amino-acid sequence (BPC-157 is the 15-residue sequence GEPPPGKPADDAGLV)
- Lot or batch code, identical to the code printed on the vial label
- Purity result with the method stated — normally reverse-phase HPLC, with column and detection wavelength
- Chromatogram or a purity table showing main peak and total related substances
- Mass-spectrometry data confirming the measured molecular weight against the theoretical value
- Appearance and peptide content (mg of peptide per vial, distinct from total powder weight)
- Water content or residual moisture, where the laboratory reports it
- Testing laboratory name, analysis date and a signature or verification reference
Reading the HPLC purity figure
The HPLC purity percentage is the area of the main peak divided by the total peak area in the chromatogram. It answers one question: how much of the ultraviolet-absorbing material at 214 nm is the target peptide. A figure of ≥99% indicates that impurities, including truncated or deleted sequences, fall below one percent of the detected material.
A single number with no chromatogram is weak evidence, because it cannot be checked. A published chromatogram lets a reviewer see peak shape, retention time and whether small shoulders were integrated or ignored. When a supplier quotes 99.9% without a method or a trace, treat the figure as marketing rather than analysis.
Confirming identity rather than only purity
Purity and identity are different questions. HPLC can report a very clean peak for the wrong peptide. Mass spectrometry closes that gap by measuring the molecular ion and comparing it to the theoretical mass of BPC-157, which is approximately 1419.5 Da for the free peptide.
For a document to be credible, both checks should be present: a purity result describing how much of the material is one substance, and a mass result confirming which substance it is.
Matching the lot code to the vial
The lot code is what makes a COA specific. Before reconstituting anything, compare the code on the vial label character for character with the code on the certificate. A COA reused across several products, or one that lists a batch the vial does not carry, provides no traceability at all.
Keep the matched pair together in your records. If a study is ever reviewed, the link between the material used and its analytical data is the part that is hardest to reconstruct afterwards.
Red flags in a BPC-157 COA
These are the recurring weaknesses seen in supplier documentation:
- No lot code, or a lot code that does not match the vial
- Purity quoted without a stated method, column or wavelength
- No chromatogram and no mass-spectrometry data
- One certificate offered as valid for every size and every batch
- No named testing laboratory, no analysis date, no signature
- Purity claimed above 99.9% with no supporting data attached
Why BPC-157 documentation draws extra scrutiny
BPC-157 is regulated or restricted as a research substance in several jurisdictions, and institutional buyers often have to show procurement documentation alongside ethics approval. A lot-specific COA with identity and purity data is generally what a review committee asks for, which is why suppliers that publish full certificates are easier to work with than suppliers who forward a PDF on request.
A certificate of analysis is an analytical document about identity, purity and quantity. It says nothing about safety or efficacy, and it does not change the status of the material: every compound in this catalog is supplied for laboratory research only and is not for human or veterinary use.
BPC-157 10mg
$49.95
LOT · BPCTB-5-5BPC-157 + TB-500 5mg + 5mg
$89.95
LOT · GLOW-70mgGLOW 70mg
$120.00
Common questions
Does every BPC-157 order include a certificate of analysis?
Yes. Each production lot is assayed by an independent laboratory and its certificate is published against the lot code printed on the vial, so the document for the material you hold is available before and after ordering.
Can I review the BPC-157 COA before placing an order?
Yes. Current lot certificates are public in the COA directory and are linked from the BPC-157 product page, so assay methodology and purity data can be reviewed at the evaluation stage.
What purity should a BPC-157 research standard meet?
Our release standard is ≥99% by reverse-phase HPLC, with identity confirmed by mass spectrometry. Lower-purity material introduces additional peaks into a chromatogram that can complicate assay interpretation.
Does a COA mean the peptide is safe to use in humans?
No. A certificate of analysis documents identity, purity and quantity. It is not a safety assessment, a therapeutic claim or a regulatory approval, and these compounds are not for human consumption.