Peptide vendor lab results
Where lab tests
found problems.
Compare recorded test failures within each seller group. Counts show what was found in tested samples, not everything a vendor sells.
U.S.-based domestic resellers
Failed endotoxin tests
Only clear pass or fail results count. Missing, unknown and borderline results are excluded. Counts do not measure how much endotoxin was present.
Across domestic resellers in this comparison
2 recorded failures across 1,737 applicable results from 60 vendors.
13,868 other eligible records have no included result for this check. That includes missing, unknown and borderline endotoxin results.
Latest eligible report: 2026-09-01. Each row below shows one vendor’s own test history.
Open a vendor row to explore compounds and test failures. Reveal protected names with Pro.
01 Vendor identity hiddenExplore test results 2failures / 37 tests 5.4%share of tests · 2 sources 2026-08-13latest lab result
Inside the lab evidence
Public preview2 failures in 37 applicable results from this vendor
Other compoundsExplore failed COAs1 / 1 failures / results
- Endotoxin failure 1
665 other eligible records have no applicable result for this comparison. Includes reports with a checkable source and a usable result for this comparison. Results describe the submitted samples. Missing results never count as passes.
Connect these results to a vendor.Reveal vendor with ProPro reveals the name and gives you access to the lab-report archive.
Showing up to 10 vendors with at least 10 applicable results each. Ordered by the number of failed results, so heavily tested vendors may appear higher. Read the count and share together. Duplicate certificates are excluded. Missing tests never count as passes. Latest included report: 2026-09-01. Method and limitations →