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Certificate of Analysis Index

Third-party lab certificates for products sold by Peptide.Express — browse current and historical batches below.

Peptide.Express research peptide vials on a laboratory bench with third-party Certificate of Analysis documentation
Research peptide vials with independent third-party laboratory certificates

27 certificates on record across 22 products. 5 products awaiting a certificate.

Current certificates

The active batch for each product — 22 on record

Current
CoACurrent
First page of the GLP3-RETA Certificate of Analysis Batch N/A (printed on CoA), as issued by the testing laboratoryOpen certificate

GLP3-RETA

Peptide, Vial

Batch
N/A (printed on CoA)
Tested
Jan 26, 2026
Lab
Mistral Diagnostics, Dallas, TX
Purity
99.810%
View certificate
Full certificate record+

This is the product certificate, not a strength-specific file. The 30.04 mg net content below is what the laboratory measured on the material it received; it is not the fill of any one variant.

Batch
N/A (printed on CoA)
Document ID
73912
Tested
Jan 26, 2026
Testing lab
Mistral Diagnostics, Dallas, TX
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
99.810%
Net content
30.04 mg
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP3-RETA to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the GLP2-TIRZ 60mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

GLP2-TIRZ 60mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 60mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP2-TIRZ to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Tesamorelin 5mg / 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Tesamorelin 5mg / 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 5mg / 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Tesamorelin to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the MOTS-C Certificate of Analysis, as issued by the testing laboratoryOpen certificate

MOTS-C

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys MOTS-C to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
Certificate on fileThe HGH 10iu Certificate of Analysis Batch H1081226 is published as a PDF. A rendered page preview has not been generated yet, so this card shows the document instead of a picture of it.

HGH 10iu

Batch
H1081226
Tested
Aug 27, 2026
Lab
—
Purity
98.63%
View certificate
Full certificate record+

Covers the 10iu presentation. That is the labelled fill size, not a measured net content.

Batch
H1081226
Tested
Aug 27, 2026
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
98.63%
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

Sourcing standard 99%+. This is the specification Peptide.Express buys HGH to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the KLOW Blend Certificate of Analysis, as issued by the testing laboratoryOpen certificate

KLOW Blend

Peptide, Vial, Blend

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys KLOW Blend to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the SS-31 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

SS-31 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
No lab verification link

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys SS-31 to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the GHK-CU Certificate of Analysis Batch N/A (printed on CoA), as issued by the testing laboratoryOpen certificate

GHK-CU

Peptide, Vial

Batch
N/A (printed on CoA)
Tested
Feb 13, 2026
Lab
Mistral Diagnostics, Dallas, TX
Purity
99.040%
View certificate
Full certificate record+
Batch
N/A (printed on CoA)
Document ID
24339
Tested
Feb 13, 2026
Testing lab
Mistral Diagnostics, Dallas, TX
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
99.040%
Net content
50.82 mg
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

Sourcing standard 99%+. This is the specification Peptide.Express buys GHK-CU to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the NAD+ Certificate of Analysis, as issued by the testing laboratoryOpen certificate

NAD+

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys NAD+ to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Wolverine Blend BPC+TB500 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Wolverine Blend BPC+TB500 10mg

Peptide, Vial, Blend

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
No lab verification link

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Wolverine Blend BPC+TB500 to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
Certificate on fileThe HCG Certificate of Analysis Batch G5-81326 is published as a PDF. A rendered page preview has not been generated yet, so this card shows the document instead of a picture of it.

HCG

Batch
G5-81326
Tested
Aug 27, 2026
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
G5-81326
Tested
Aug 27, 2026
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys HCG to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the CJC-1295+Ipamorelin NO DAC Certificate of Analysis, as issued by the testing laboratoryOpen certificate

CJC-1295+Ipamorelin NO DAC

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys CJC-1295+Ipamorelin NO DAC to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the BPC-157 Certificate of Analysis Batch N/A (printed on CoA), as issued by the testing laboratoryOpen certificate

BPC-157

Peptide, Vial

Batch
N/A (printed on CoA)
Tested
Jan 12, 2026
Lab
Mistral Diagnostics, Dallas, TX
Purity
99.040%
View certificate
Full certificate record+

This is the 10mg presentation certificate. Labelled fill 10 mg; the net peptide content measured by the laboratory is the figure below.

Batch
N/A (printed on CoA)
Document ID
12821
Tested
Jan 12, 2026
Testing lab
Mistral Diagnostics, Dallas, TX
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
99.040%
Net content
11.26 mg
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

Sourcing standard 99%+. This is the specification Peptide.Express buys BPC-157 to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Kisspeptin 5mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Kisspeptin 5mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 5mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Kisspeptin to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Melanotan II 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Melanotan II 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Melanotan II to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the TB-500 Certificate of Analysis Batch N/A (printed on CoA), as issued by the testing laboratoryOpen certificate

TB-500

Peptide, Vial

Batch
N/A (printed on CoA)
Tested
Jan 19, 2026
Lab
Mistral Diagnostics, Dallas, TX
Purity
99.130%
View certificate
Full certificate record+
Batch
N/A (printed on CoA)
Document ID
11011
Tested
Jan 19, 2026
Testing lab
Mistral Diagnostics, Dallas, TX
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
99.130%
Net content
5.06 mg
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

Sourcing standard 99%+. This is the specification Peptide.Express buys TB-500 to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Sermorelin 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Sermorelin 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Sermorelin to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the MOTS-C + NAD KIT Certificate of Analysis, as issued by the testing laboratoryOpen certificate

MOTS-C + NAD KIT

Bundle

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
No lab verification link

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys MOTS-C + NAD KIT to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the PT-141 Certificate of Analysis, as issued by the testing laboratoryOpen certificate

PT-141

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys PT-141 to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the SEMAX NASAL SPRAY Certificate of Analysis, as issued by the testing laboratoryOpen certificate

SEMAX NASAL SPRAY

Nasal Spray

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+
Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys SEMAX NASAL SPRAY to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Epithalon 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Epithalon 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Epithalon to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoACurrent
First page of the Semax 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

Semax 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys Semax to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →

Historical certificates

Older batches stay published for traceability — 5 archived

Archive
CoAArchive
First page of the GLP3-RETA 10mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

GLP3-RETA 10mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 10mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP3-RETA to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoAArchive
First page of the GLP3-RETA 15mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

GLP3-RETA 15mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 15mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP3-RETA to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoAArchive
First page of the GLP3-RETA 20mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

GLP3-RETA 20mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 20mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP3-RETA to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →
CoAArchive
First page of the GLP3-RETA 30mg Certificate of Analysis, as issued by the testing laboratoryOpen certificate

GLP3-RETA 30mg

Peptide, Vial

Batch
—
Tested
—
Lab
—
Purity
—
View certificate
Full certificate record+

Covers the 30mg presentation. That is the labelled fill size, not a measured net content.

Batch
Not recorded
Tested
Not recorded
Testing lab
Not recorded
Document
Certificate PDF
Verification
mistraldiagnostics.com

Results recorded against this certificate

Purity
Not recorded
Net content
Not recorded
Endotoxins
Not recorded
Sterility
Not tested
Heavy metals
Not tested
Fentanyl screen
No screen on file

No measured values are recorded against this certificate in our index. The linked document is the laboratory’s own report and remains the source for what it states.

Sourcing standard 99%+. This is the specification Peptide.Express buys GLP3-RETA to. It is a purchasing standard, not a result from this certificate.

DownloadProduct page →

Awaiting a certificate (5)

These products are in inventory and have no Certificate of Analysis on record yet. Certificates are published here as batch testing is completed.

IpamorelinBPC-157 + TB500 KITDSIPEnclomiphene Oral TabletsBacteriostatic Water
How to read this indexShow

How to read this index

Not recorded against 0 EU/mg
“Not recorded” means no result for that test is on file for that batch. It is not a result of zero. A measured zero is printed as a figure, because it is a finding.
Not detected against No screen on file
“Not detected” means the screen was run and found nothing at the assay limit. “No screen on file” means it was not run. The same distinction applies to sterility: a recorded pass is a badge, an untested batch says “Not tested”.
Net content against the labelled mg
The mg beside a compound name is the labelled presentation the certificate covers. Net content is the mass the laboratory measured. They are separate claims and are never substituted for one another.
Sourcing standard against measured purity
The sourcing standard at the foot of a card is the specification we buy to. It is not an analytical result and never appears among the recorded results. Measured purity on a card comes only from a laboratory result recorded against that batch.
Document ID against Batch
A Document ID is the testing laboratory’s accession number for the certificate itself. It identifies the report, not the material. Where a card reads “N/A (printed on CoA)” against Batch, that is what the certificate’s own Lot field says, transcribed rather than filled in. Neither number is a lot.
A card with no page preview
Some cards show a document placeholder instead of the first page of the certificate. That means the PDF is published and no picture of it has been rendered yet. It never means the certificate is missing: the card still opens the document.

About this testing: All Certificates of Analysis are issued by independent third-party laboratories, not by Peptide.Express. Documents are uploaded directly from the laboratory report and have not been altered. Older certificates stay published after a newer batch supersedes them. For questions about a specific certificate, contact support@peptide.express.

What we can show you the numbers for

About this certificate index

Certificates document identity, purity, and selected quality tests of the lot. They are not safety assessments and not approvals for human or veterinary use.

Every Certificate of Analysis on record for products sold by Peptide.Express is listed above, one card per certificate, by product with the current batch first. Certificates are issued by independent third-party laboratories. Historical certificates stay published after a newer batch supersedes them, so a vial in hand can always be matched to the document that describes it.

Each card names the compound, the presentation the certificate covers, the testing laboratory, the batch and test date where those are on file, and what the certificate records for purity, net content, endotoxins, sterility and fentanyl screening. Where a result is not on file the card says so rather than showing a figure. An absent result is not a result of zero. Opening a card opens the certificate itself.

A certificate describes one batch. It does not describe how to handle the substance: hazard classification, first-aid measures, personal protective equipment, storage incompatibilities and disposal are set out in the 16-section GHS Safety Data Sheet for each compound.