Define the question
Choose the product and the identity, content, purity or other question you need answered.
Independent sample testing
Test a supplier sample — including material from another supplier
Independent testing at First1BioLab means an identified peptide sample is submitted for analysis and a laboratory issues its own report for your purchasing review. You can test a supplier sample before a larger order, and other suppliers' samples are welcome. Choose identity, purity, content, blend composition, or an agreed panel, then confirm the laboratory, methods, sample requirement, timing, report and fee in a written proposal. Examples on this site are sample-specific and do not certify an untested lot.
How it works
From your sample to an independent report.
Confirm the scope
We confirm laboratory availability, methods, sample requirements, fees and timing.
Send the sample
Follow confirmed shipping instructions. Receipt and laboratory handover are recorded.
Review the report
The independent laboratory issues the report for your team’s purchasing review.
Report examples
See what a report can contain.
Displayed examples identify the issuer of those historical sample reports. For a new commission, your written proposal separately identifies the laboratory, analytical scope, sample requirement, turnaround, report deliverable and fee basis.
Reported: 2026-03-24 · HPLC / MS
Reported purity: 99.735% · sample-specific result
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Reported: 2026-02-17 · HPLC purity / net peptide content
Reported purity: 100.00% · sample-specific result
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Reported: 2025-12-16 · HPLC / MS
Reported purity: 99.263% · sample-specific result
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Choose by question
What do you need the analysis to answer?
Choose a direction first. Exact methods, sample mass, timing, report format and fee are set by the named laboratory in the written scope.
Is it the stated material?
Identity confirmation or targeted screening.
How pure is it?
Purity and related impurity analysis.
How much target material is present?
Quantitation with agreed units and calculation basis.
What is in the blend?
Component identification and, where feasible, component quantitation.
Does it meet the purchasing specification?
An agreed panel against the requirements for this procurement.
The proposal states: test and decision, sample requirement, expected timing, report deliverable and fee basis.
Testing menu
Choose your sample analysis.
77 test selections
Blind peptide screening
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Arg-BPC-157 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Dihexa analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Crystagen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Chonluten analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Pancragen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Testagen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Ovagen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →AHK-Cu analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-Acetyl Epithalon analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-acetyl Epithalon Amidate analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-acetyl Semax analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Adamax analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Livagen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Vesugen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Bronchogen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Cortagen analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Vilon analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Pinealon analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Prostamax analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-Acetyl Selank analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-Acetyl Selank Amidate analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Thymagen (Thymogen) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Cartalax analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →PE-22-28 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →P-21 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →N-acetyl Semax Amidate analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →FOXO4-DRI analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →HCG – HPLC immunoassay alternative
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Cagrilintide/Semaglutide (CagriSema) blend analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →Humanin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Hexarelin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →CJC No DAC – MOD GRF (1-29)/Ipamorelin blend analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →BPC-157/TB-500 blend analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →CJC DAC/Ipamorelin blend analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →KLOW (GHK or GHK-Cu/ TB-500/ BPC-157/ KPV) analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →GLOW (GHK or GHK-Cu/ TB-500/ BPC-157) analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →HCG – HPLC analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →CJC-1295 DAC analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →rHGH fragment or AOD-9604 (LCMS+CHNS) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Common GLP-1 peptide blind test (Semaglutide, Tirzepatide and Retatrutide)
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →rHGH fragment or AOD-9604 (HPLC) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Thymosin Alpha-1/ Thymalin (Thymulin) blend analysis
Agree component identity, content and the analytical scope for your blend.
Request this test →Melanotan 2 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Sermorelin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →ARA-290 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →SNAP-8 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →GHK (or GHK-Cu) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Elamipretide (SS-31) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →KPV analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Cagrilintide analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →TB4/TB-500/TB4(17-23) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Mazdutide analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →BPC-157 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →PT-141 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Epithalon analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Thymalin/Thymulin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →MOTS-c analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →IGF-1 LR3 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Ipamorelin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Tesamorelin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Thymosin Alpha-1 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →CJC-1295 no DAC ( MOD GRF (1-29) ) analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →VIP analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Semax analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →DSIP analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Selank analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →GHRP-2 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →GHRP-6 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Glutathion analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Oxytocin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →LL-37 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Melanotan 1 analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Kisspeptin analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Human Growth Hormone amount, purity and dimer and higher molecular weight proteins analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →Human Growth Hormone amount and purity analysis
Confirm the methods, sample requirement, price and report format for your sample.
Request this test →MGF analysis
Confirm the methods, sample requirement, price and report format for your sample.
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Your next step
Tell us about your sample.
Choose a test or describe the decision you need to make. We confirm the scope and shipping instructions before you send a sample.
- Share the material, quantity and destination.
- Receive availability, pricing, sample options and document details.
- Confirm specifications and terms before PO / PI.
Contact Us: First1biolab Pharmaceutical Technology Co., Ltd., Beijing, China.
Independent testing of a supplier sample
Other suppliers' samples are welcome. The laboratory, methods, sample requirement, timing, report and fee for a new commission are confirmed in a written proposal. Historical examples on this page may name different report issuers.
How this differs from a supplier COA
A supplier COA describes an identified supplier lot. An independent report records what the laboratory measured on the submitted sample. Align lot, sample, method and calculation basis before comparing results. Supplier COA vs independent lab report.
Frequently asked questions
Can I test a sample from another supplier?
Yes. First1BioLab states that other suppliers' samples are welcome. Define the sample, the question you need answered, and the shipping path, then confirm laboratory, methods, requirements, timing and fees in the written proposal before you ship.
Do I have to place a material order before testing?
This page is set up to test a supplier sample before a larger order. Whether a material purchase is required for a given submission, and any fees, should be confirmed in the written proposal. Do not assume terms that are not stated there.
Which laboratory issues the report?
The independent laboratory issues the report for your purchasing review. Historical examples on this page name issuers such as Freedom Diagnostics and Prime Analytical Laboratories, LLC. For a new commission, the written proposal separately identifies the laboratory and scope.
Do the report examples apply to the lot I will buy?
No. Displayed examples are historical, sample-specific results. They do not automatically represent an untested bulk lot or replace a lot-matched COA for the material you intend to purchase.
What questions can the analysis answer?
The page groups requests as identity, purity, how much target material is present, what is in a blend, or an agreed panel against a purchasing specification. Exact methods, sample mass, timing, report format and fees are set by the named laboratory in the written scope.