Every batch is independently tested.
Every batch is tested by Freedom Diagnostics Testing, an independent US-based analytical lab in Franklin, Tennessee. Identity by mass spectrometry. Purity by HPLC. Endotoxin by LAL. Every certificate is published on the product page and verifiable in their public archive by accession number.
We ship a sample from every batch to Freedom Diagnostics.
When a new batch of peptide comes in, we pull a representative sample, label it with the lot number, and ship it to Freedom Diagnostics Testing in Franklin, Tennessee — an independent US lab we don't own and can't influence.
They test it by HPLC, mass spec, and LAL.
HPLC measures purity by mass percentage; mass spectrometry confirms the molecular identity of the peptide; and an LAL assay measures bacterial endotoxin in EU/mL, with a pass threshold of ≤ 0.05 EU/mL. These are the same methods pharmaceutical labs and academic researchers use to verify reagents.
Freedom Diagnostics issues the Certificate of Analysis.
The COA is the lab's signed report — what was tested, the methods used, and the results. It carries their name and accession number, not ours, and we can't edit it. Every COA is added to their public archive so anyone can look it up.
We publish the COA on the product page.
Each product's COA is posted right on its page — open it before you buy, no sign-up, no "contact us for the report." If a batch fails to meet our purity threshold, it doesn't get listed. Verify any COA at freedomdiagnosticstesting.com using its accession number.
Verify it yourself
Don't take our word for it.
Every certificate carries a Freedom Diagnostics accession number. Look it up in their public archive — no account, no request.
Check a lot at freedomdiagnosticstesting.com ↗Find the accession number
Every product page lists the lot and a Freedom Diagnostics accession number on its certificate panel.
Open the public archive
Search that accession number at freedomdiagnosticstesting.com — no account, no request required.
Match the results
Compare identity, purity, and endotoxin figures against the certificate shown on the product page.