Immune

Thymosin Alpha 1

Immune Peptide

Also referred to as Ta1, thymalfasin, Zadaxin.

Thymosin Alpha 1 is a 28-amino-acid immunomodulatory peptide originally isolated from thymic tissue, now produced synthetically under the name thymalfasin. It acts on both innate and adaptive branches of the immune system, a profile that has made it a recurring subject in research on conditions where immune dysregulation drives outcomes.

The compound is approved for clinical use in a number of countries and has accumulated a substantial body of human trial data across infectious disease, oncology, and critical care — an unusually strong evidence base relative to most research peptides.

Published on Thymosin Alpha 1

Research OverviewThymosin Alpha 1 Peptide: Mechanism of Action ExplainedThymosin Alpha 1 is a 28-amino-acid peptide derived from prothymosin alpha, a protein produced naturally by the thymus gland and found at low concentrations in peripheral blood.