§ 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
99.76%
Endotoxins
Not tested
Stated qty
20 mg
Tested qty
20.97 mg
Qty match
105% of labeled · +5%
Batch ID
N/A
◆ Quantity verification
20 mg→20.97 mg+5%
About this test
This independent lab test confirms Retatrutide 20mg from Penguin Peptides at 99.773% purity, with a tested content of 20.97mg. The analysis was conducted by Janoshik Analytical on January 21, 2026.
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist studied for its effects on metabolic regulation, body weight reduction, and glycemic control. A purity level of 99.773% indicates high-grade synthesis with minimal impurities, and the tested quantity exceeding the labeled 20mg confirms accurate dosing.
The full certificate of analysis is available for download on this page.
Certificate of analysis
Original document
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