Peptide Purity, Identity and Content — Measured, Documented, Verifiable.
Independent UPLC-MS and HPLC-UV analysis of research peptides, read alongside net content, endotoxin, heavy metals and residual solvent testing. Each result is issued on a Certificate of Analysis with a number and QR code you can check online. Premium service, quoted by email.
Verify a Certificate
Enter the number printed on your certificate.Simple Steps to Reliable Results.
- Step 1
Send an Inquiry
Fill out the form with your sample details. We reply with a quote and packing instructions.
- Step 2
Send Your Samples
We tell you which of our labs to send them to, based on where you are.
- Step 3
We Test
Your samples are logged when they arrive and tested by the methods in your quote.
- Step 4
Get Your Certificate
You receive your Certificate of Analysis, with a number and QR code you can check online.
Peptide and Analytical Tests, Run In-House.
Peptide Testing
Purity, identity and net content by UPLC-MS.
Endotoxin Testing
Kinetic chromogenic LAL, reported in EU/mL.
Heavy Metals & Elemental
ICP-MS for As, Cd, Pb, Hg and expanded panels.
Residual Solvents
GC-HS for common solvents.
Sterility & Bioburden
USP <71> sterility and USP <61> bioburden.
Supplement Testing
Identity, purity and potency in tablets, capsules and liquids.
A Path for Every Researcher — And Every Lab.
Research Labs
Confirm identity and purity of peptides and small molecules before they go into an experiment.
Send Samples →Peptide Brands and Suppliers
Independent third-party certificates for every batch, verifiable by your customers online.
Request a Quote →Supplement and Nootropic Companies
Identity, potency, endotoxin, heavy metals and solvents in finished products and blends.
View Testing →Independent Researchers
Single-sample testing with plain-language certificates. Tell us what you are working with.
Contact Us →

About Global Pure Laboratory.
We are an independent testing lab. We test peptides, supplements, nootropics and research chemicals for purity, identity, content and safety, using UPLC-MS, HPLC, LAL endotoxin, ICP-MS and GC-HS.
We do not make, source or sell the compounds we test, so the results are not tied to any product. We have been running since December 2021 and have issued more than 4,000 reports.
Learn More About Us
What We Run Your Samples On.
What You Get Back.
Each certificate shows what was tested, the method, the result and the test date. Where it applies, the chromatogram and spectrum are attached.
- Unique Certificate Number and QR code
- Method, result, units and test date
- Chromatogram and spectrum where applicable
- Chinese and English versions where needed
| Test | Method | Result |
|---|---|---|
| Purity | HPLC-UV | See certificate |
| Identity | Accurate mass | See certificate |
| Endotoxin | Kinetic LAL | EU/mL |
Example layout only. Not a real result.
How We Work.
| Aspect | Global Pure Laboratory | For You |
|---|---|---|
| Independence | We only test. We do not make, source or sell the compounds. | Results are not tied to any product. |
| Methods | Six methods in one lab. UPLC-MS and HPLC-UV, LAL endotoxin, ICP-MS, GC-HS and microbiology. | One shipment can cover purity, identity, content and safety tests. |
| Certificate | Unique number and QR code on every certificate. | Every result can be traced to one record. |
| Verification | Online, by Certificate Number. | Anyone you share a certificate with can confirm it is real. |
| Locations | China and Czech Republic. | Send to the lab that suits you. We confirm the address when you enquire. |
| Pricing | Premium service. Tailored quotes. | A quote based on your samples and tests. |
Two Labs, One Standard.
Get a Tailored Quote.
Premium analytical service. All quotations are provided by email upon inquiry. Contact us with sample details for a tailored premium quote.
Bring Your Peptides to An Independent Lab.
Send us your sample details and we will reply with a quote and packing instructions.