This independent lab test confirms Tirzepatide 15mg from Penguin Peptides at 99.860% purity with an actual measured content of 16.43 mg. The analysis was conducted by Janoshik Labs on January 21, 2026.
Tirzepatide is a dual GIP/GLP-1 receptor agonist researched for its role in metabolic regulation, weight management, and glycemic control. A purity level of 99.860% reflects high-grade synthesis with negligible impurities.
The full certificate of analysis is available for download on this page.
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