§ 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
99.74%
Endotoxins
Not tested
Stated qty
15 mg
Tested qty
11.96 mg
Qty match
80% of labeled · -20%
Batch ID
N/A
◆ Quantity verification
15 mg→11.96 mg-20%
About this test
This independent HPLC lab test confirms Retatrutide 15mg from Penguin Peptides at 99.769% purity. The analysis was conducted by Janoshik Analytical, a third-party laboratory, on January 21, 2026. A purity level of 99.769% indicates minimal contamination and high-grade synthesis.
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist researched for its role in metabolic regulation, body composition, and glycemic control. Studies examine its effects on multiple pathways including appetite signaling, energy expenditure, and lipid metabolism.
The full certificate of analysis is available for download on this page.
Certificate of analysis
Original document
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