§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · JAN-2026● VERIFIED SUBMISSION · PUBLIC RECORD
◆ Batch ID · N/A✓ Verified · Pass
Retatrutide × Penguin Peptides - Lab Test, January 2026
Tested · submitted by @Frank 👑 Legend
Test results
6 data points
Purity
99.47%
Endotoxins
Not tested
Stated qty
5 mg
Tested qty
5.56 mg
Qty match
111% of labeled · +11%
Batch ID
N/A
◆ Quantity verification
5 mg→5.56 mg+11%
About this test
This independent HPLC lab test confirms Retatrutide 5mg from Penguin Peptides at 99.465% purity. The analysis was conducted by Janoshik Analytical, a third-party laboratory, on January 21, 2026.
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist researched for its role in metabolic regulation, weight management, and glycemic control. A purity level of 99.465% indicates minimal contamination and high-grade synthesis.
The full certificate of analysis is available for download on this page.
Certificate of analysis
Original document
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