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BTLabs-tested peptides

Certificates of analysis from BTLabs that peptide vendors publish: which vendors use the lab, which peptides it tested, and what it found. BTLabs's website.

BTLabs website
59published reports
14vendors
15peptides
99.70%median purity
104%median measured vs label

Accreditation

No accreditation found

We found no ISO/IEC 17025 accreditation for this lab in the accreditation bodies' registries.

Registries searched: A2LA, PJLA, IAS, ANAB (couldn't be searched) · checked 2026-10-10. ISO/IEC 17025 is the standard for testing-lab competence; we check the accreditation body's own registry, not the lab's claim.

Vendors that publish BTLabs reports

Peptides tested by BTLabs

Latest BTLabs reports

VendorPeptideDatePurityMeasured vs label
Pai ChemicalsRetatrutide2026-09-1699.8%104%View
Pai ChemicalsBPC-1572026-09-0499.6%107%View
Sunrise BioResearchCagrilintide2026-09-0499.6%110%View
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzTirzepatide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
Bio PepzRetatrutide2026-09-03––View (image)
LumiraSS-312026-09-0399.9%109%View
LumiraPinealon2026-09-0399.5%104%View
LumiraTB-5002026-09-0399.6%102%View
LumiraMOTS-c2026-09-0399.9%109%View
LumiraTesamorelin2026-09-0399.7%116%View
LumiraGHK-Cu2026-09-0399.6%112%View
LumiraRetatrutide2026-09-0399.7%91%View
Sunrise BioResearchTesamorelin2026-09-0299.9%114%View
LumiraTB-5002026-08-1399.5%86%View
LumiraRetatrutide2026-08-1099.9%84%View
LumiraBPC-1572026-08-1099.6%91%View
SaiyanMedRetatrutide2026-08-05––View (image)
SaiyanMedRetatrutide2026-08-05––View (image)
SaiyanMedGHK-Cu2026-08-04––View (image)
SaiyanMedIpamorelin2026-08-04––View (image)
SaiyanMedMelanotan II2026-08-04––View (image)
SaiyanMedRetatrutide2026-08-04––View (image)
SaiyanMedRetatrutide2026-08-04––View (image)
Shenzhen Aurora BiotechnologyTirzepatide2026-08-04––View (image)
Regenerative ResearchTesamorelin2026-07-2299.7%100%View
Pepta LabsGHK-Cu2026-06-18––View (image)
Pepta LabsTirzepatide2026-06-18––View (image)
Gulf Coast AminosBPC-157 + TB-5002026-06-1699.7%111%View
LumiraRetatrutide2026-06-1299.6%100%View
LumiraRetatrutide2026-06-1299.7%101%View
Regenerative ResearchThymosin Alpha-12026-05-2899.8%105%View
Regenerative ResearchEpithalon2026-05-2399.6%101%View
Gulf Coast AminosTirzepatide2026-05-2299.8%136%View
Gulf Coast AminosTirzepatide2026-05-2299.8%94%View
SaiyanMedRetatrutide2026-04-26––View (image)
Regenerative ResearchTB-5002026-04-1699.8%122%View
Regenerative ResearchMelanotan II2026-03-2699.8%101%View
Amino EssenceTirzepatide2026-01-26––View (image)
Chimera PeptidesRetatrutide2026-01-22––View (image)
Chimera PeptidesRetatrutide2025-12-29––View (image)
Chimera PeptidesRetatrutide2025-12-29––View (image)
GLP Keep Body PeptideCagrilintide2025-12-15––View (image)
GLP Keep Body PeptideTirzepatide2025-12-15––View (image)
Chimera PeptidesRetatrutide2025-12-05––View (image)
Pure Tested PeptidesIpamorelin2025-10-0699.8%136%View
Emlin BioScience ExchangeTesamorelin–––View (image)

Reports as published by vendors; numbers are shown where the document is readable text. A vendor's COA shows one tested sample, not every batch. Vendors banned for fake lab reports are excluded.