Carbon Labs is a testing lab in River Rouge, MI. As of Nov 6, 2026, 1 vendor we track publishes COAs from it, and it ran 1 COA of those we checked. This page lists facts about the lab and how to check one of its reports. We don't rate labs or judge their results.
Most of its work is cannabis testing in Michigan, and its site marks peptide testing as new.
The QR code on the COA opens a Confident LIMS record naming the sample, client and lab, without the results. The lab's own lookup at testwithcarbon.com/verify didn't find the sample we tried.
As of , Carbon Labs holds ISO/IEC 17025 accreditation (PJLA, cannabis testing only), per the accreditation body's directory. PJLA lists certificate L25-937 (accreditation 118579), valid to Feb 29, 2028. Every test on its scope is for cannabis flower, concentrates or edibles, with no peptide, endotoxin or sterility method. ISO/IEC 17025 is the international standard for testing lab competence. An accreditation covers only the methods listed in its scope.
Per testwithcarbon.com, Carbon Labs offers:
Each count is the number of the vendor's sampled COAs this lab ran, out of those we checked.
Facts come from the lab's own site and the accreditation bodies' directories. The vendor list comes from the COAs on each vendor page. How lab testing is counted →
