This independent HPLC lab test with UV detection coupled to mass spectrometry confirms Retatrutide 34.99mg from Instant Peptides at 99.71% purity. The analysis was conducted by Freedom Diagnostics Testing on March 24, 2026.
Retatrutide is a triple GIP/GLP-1/GCG receptor agonist researched for metabolic regulation, weight management, and glycemic control. A purity level of 99.71% indicates high-grade synthesis with minimal contamination. Endotoxin safety screening returned a PASS result (≤0.65 EU/mL across both replicates).
The sample appeared as a white lyophilized powder in a green-capped vial. The full certificate of analysis (COA: 2602030140) is available for download on this page.

Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.