Independent HPLC with mass spectrometry analysis confirms Tirzepatide from IonPeptide at 99.78% average purity across dual vial bulk sample. Tested by Freedom Diagnostics Testing on February 7, 2026.
Individual vial testing showed net peptide content of 20.57mg and 21.20mg with consistent high-purity results (99.72% and 99.84% respectively). Purity of 99.78% confirms premium-grade synthesis with minimal impurities. Endotoxin analysis passed at ≤ 0.05 EU/mL.
The full certificate of analysis is available for download on this page.

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