freedomdiagnosticstesting.com 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.
This independent HPLC-UV lab test confirms TB-500 10mg from Excalibur Peptides at 99.33% purity. The analysis was conducted by Freedom Diagnostics Testing on June 12, 2026.
TB-500, also known as Thymosin Beta-4, is a naturally occurring peptide researched for its role in wound healing, tissue repair, and cellular regeneration. A purity level of 99.33% indicates minimal impurities and high-grade synthesis.
The full certificate of analysis is available for download on this page
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.