COA-Verified Sources
Where to buy Tirzepatide with a COA
2 verified vendors publish a third-party Certificate of Analysis for Tirzepatide. Compare purity, lab and price per mg below – every result links to the actual COA and the vendor's own shop. For laboratory research use only.
COA-verified vendors for Tirzepatide
Hydro Research Peptides
99.92%
Lab: Janoshik Analytical · 2026-03-17 · 18 COAs
View COA
The link opens the report shown here. A total of 18 COAs are recorded for this vendor.
$3.68/mgAd
Licensed Peptides
99.8%
Lab: Vanguard Laboratory · 2026-02-11 · 4 COAs
View COA
The link opens the report shown here. A total of 4 COAs are recorded for this vendor.
Frequently Asked Questions
Each vendor listed has at least one published, third-party Certificate of Analysis (COA) for this peptide in ChemVerify's database – an independent lab report stating identity and HPLC purity. We link the actual report so you can read it yourself. For laboratory research use only.
Prices are normalized to USD per milligram (lowest size-adjusted price per vendor, discount code applied) so different vial sizes are comparable. ChemVerify routes you to the vendor's own shop – it does not sell anything.