For laboratory research use only. Every lot independently tested; certificates published by lot.

Verify a MT2 lot

Enter the lot number printed on your MT2 Research Supply Melanotan II vial to see that lot's certificate of analysis results: purity, identity, net content, test dates and the laboratory's reference numbers.

Published MT2 lots

Every lot that can be verified on this page.

LotVial sizeNet contentPurity (HPLC-UV) Identity (LC-MS)Endotoxin (LAL)Microbial (PCR)ReportedCOA
KB32432 10 mg 12.33 mg 99.90% Confirmed Not tested Not tested View lot KB32432
KB32432 10 mg 12.33 mg 99.90% Confirmed Not tested Not tested View lot KB32432

Testing laboratory: Freedom Diagnostics. Release specification: purity ≥95% by HPLC-UV with identity confirmed by LC-MS. Results apply only to the lot listed. Certificates list the testing client as Klow.bio / Klow Labs LLC, the company that operates MT2 Research Supply.

How to verify a certificate

  1. Find the lot number on your vial. It is printed on the label, for example KB32432.
  2. Look it up. Enter it at buymt2.com/verify, or open the matching lot in the COA archive.
  3. Check the lab's own record. Scan the Freedom Diagnostics QR code printed on the certificate, then search for klow.bio under the Company tab to view the laboratory record.
  4. Compare the details. Lot number, the laboratory’s reference numbers, purity and dates should match exactly.

What a certificate of analysis does and doesn't show

  • A COA reports the identity, purity and content of the specific sample tested, on its test date. Results apply to that lot only.
  • HPLC purity measures the main peak relative to other detected components. It does not identify the peak on its own; the separate identity test (LC-MS) does that.
  • Mass confirmation matches molecular weight. It does not by itself confirm amino-acid order.
  • Endotoxin and microbial results apply only where those tests appear on the certificate. Lots without them are marked "Not tested".
  • A certificate does not establish stability after the test date or suitability for any particular purpose.