This independent lab test confirms TB-500 5mg from Penguin Peptides at 99.565% purity with an actual measured content of 5.27 mg. The analysis was conducted by Janoshik Labs on January 21, 2026.
TB-500 is a synthetic fragment of thymosin beta-4 (TB4) researched for its role in cell migration, tissue regeneration, and inflammation modulation. A purity level of 99.565% indicates high-grade synthesis with minimal impurities.
The full certificate of analysis is available for download on this page.
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