A 2024 systematic review of Thymosin Alpha 1 in human clinical studies covered more than 30 trials and over 11,000 participants.
clinical trials (11,000+ participants)
Human clinical studies covered by a 2024 systematic review.
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Synthetic 28-amino-acid thymic peptide, supplied for laboratory research use only.
$89/ 10mg vial
$44.50 per vial with Buy 1, Get 1 Free
All products currently listed on this site are for research purposes only.
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Every batch of Thymosin Alpha 1 is tested by an outside lab before it goes on sale — not by us. The one shipping now is lot HPPXJD: 99.74% pure by HPLC, tested by Freedom Diagnostics on 12 Oct 2026. The signed report is right here. Purity is the number the lab measured, never “at least 99” — and a batch that misses its spec never ships.

An immune-modulating research peptide studied for tuning the body's defenses.
Studied for supporting T-cell function and the immune system's coordination.
Investigated for the body's response to viruses across infectious-disease models.
Researched for its role in tumor-immunology models.
For research use only. Mechanisms described reflect published research literature.
Anyone can show you one good report. Here is every batch of Thymosin Alpha 1 we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.
Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.
Full research: Thymosin Alpha-1: More Trials Than Most, Less Certainty Than You'd Expect
Quick answers about Thymosin Alpha 1.
Test any batch at any lab you like. If it doesn't match our report, you get every dollar back. No return shipping, no forms, no arguments.