This independent HPLC with UV detection and mass spectrometry analysis confirms GLP-2 TZ 20mg from Peptide Supply Co at 99.618% purity. The analysis was conducted by Freedom Diagnostics Testing on February 12, 2026.
GLP-2 TZ, also known as Tirzepatide, is a dual GIP/GLP-1 receptor agonist researched for its potential benefits in glucose control, weight management, and metabolic regulation. A purity level of 99.618% demonstrates high-quality synthesis with minimal impurities.
The full certificate of analysis (COA: 2602110273) is available for download on this page.

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