Retatrutide × Growth Guys - Lab Test, January 2026
Janoshik Labs publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.
Test results
About this test
This independent lab analysis confirms Retatrutide 20mg from Growth Guys at 99.607% purity. The test was conducted by Janoshik Labs on January 15, 2026, with a tested quantity of 21.08mg across multiple vials (21.08mg, 21.41mg, 20.30mg).
Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist researched for its potential role in metabolic regulation, weight management, and glycemic control. A purity level of 99.607% indicates high-grade synthesis with minimal impurities.
The full certificate of analysis is available for verification at www.janoshik.com/verify/ using the unique key RTX7IF6JUW83.
Certificate of analysis
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion
No comments yet. Sign in to be the first to discuss this test.