Tirzepatide × Certified Peptides - Lab Test, February 2026
Test results
About this test
This independent HPLC-UV/VIS lab test confirms Tirzepatide 60mg from Certified Peptides at >99.80% purity with an actual assay of 67.20 mg. The analysis was performed by Vanguard Laboratory and reported on February 24, 2026, under Lot Number 251220TZ603.
Tirzepatide is a dual GIP/GLP-1 receptor agonist researched for its role in metabolic regulation, weight management, and glycemic control. Additional testing confirmed endotoxin levels at 0.70 EU/mg (LAL method), sterility with no growth detected (USP <71>), and non-detectable levels of heavy metals including chromium, arsenic, cadmium, lead, and mercury via ICP-MS.
The full certificate of analysis is available for download on this page.
Certificate of analysis
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