Independent Verification
Every Batch. Independently Tested.
Every product we ship is sent to an independent third-party lab for verification before it reaches you. We publish the results here — unredacted, unedited, and matched to the batch number on your vial. If a batch doesn't meet our standard, it doesn't ship.
HPLC Purity
High-Performance Liquid Chromatography quantifies the percentage of target peptide vs impurities. We require ≥ 99% on every batch.
Batch Number
Every vial is printed with a batch ID matching the COA below. Cross-reference any time — your proof is permanent and public.
How to read a COA
Locate the batch number on your vial. Click any report below to open the matching PDF and confirm the HPLC purity figure meets our 99% standard. That's it — every claim we make traces back to a document right here.
Frequently asked questions
What does a Certificate of Analysis (COA) prove?
A COA is a lab-issued document that confirms what's actually inside the vial. The key data point is HPLC purity — the percentage of the active peptide vs. impurities. Without a current COA, there's no way to verify what you're buying.
How often are new COAs added?
Every time we receive a new batch from our synthesis facility, the sample goes to an independent HPLC lab for testing. As soon as the report comes back and meets our ≥99% threshold, we publish it here — before any vials from that batch ship to customers.
Why does HPLC purity matter for research peptides?
Purity directly affects reproducibility. A peptide labelled at 10mg but tested at 92% purity actually delivers ~9.2mg of active compound — the rest is synthesis byproducts. Research data based on contaminated material can't be trusted, which is why ≥99% is the floor for serious lab work.
What if my batch number isn't shown here?
The COAs displayed represent the current batches in stock. If you have a vial whose batch number isn't in our public archive, contact us with the batch ID and we'll send you the matching report directly. We retain COAs for every lot we've ever sold.
Can I request a new COA on an existing batch?
Yes. If you need independent verification of a batch you've already received — for example, for academic publication requirements — contact us and we'll coordinate a retest at the third-party lab of your choice.