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Research / clinical peptide

Thymosin Alpha-1

Thymosin alpha-1 is a 28-amino-acid immune-modulating peptide used or approved in some countries and widely studied in immunology research worldwide.

By The Peptides Codex Editorial TeamReviewed July 10, 2026
Length
28 aa
Class
Research / clinical peptide
Function
Immune-modulating thymic peptide
Context
Approved or used in some countries for specific indications; research use elsewhere

Immune peptide with real clinical history in some markets — not just forum lore.

Also known as: Tα1 · thymalfasin · Zadaxin

Part of the Repair & recovery peptides cluster

Overview

Thymosin alpha-1 is a 28-amino-acid immune-modulating peptide used or approved in some countries and widely studied in immunology research worldwide.

Source & context

Biological / chemical source: Synthetic version of thymic peptide

Primary research or clinical context: Approved or used in some countries for specific indications; research use elsewhere

Immune education angle

Tα1 is discussed in contexts of T-cell related immune function and vaccine-response research. Regulatory availability differs sharply by country.

FAQ about Thymosin Alpha-1

What is Thymosin Alpha-1?+

Thymosin alpha-1 is a 28-amino-acid immune-modulating peptide used or approved in some countries and widely studied in immunology research worldwide.

Is Thymosin Alpha-1 an approved medicine?+

Thymosin Alpha-1 is discussed here as a research / educational topic. Approved or used in some countries for specific indications; research use elsewhere. This is not medical advice.

What is the typical length of Thymosin Alpha-1?+

Thymosin Alpha-1 is commonly described as approximately 28 amino acids (Research / clinical peptide).

Related peptides

References & further reading

  1. 1.Wikipedia — Thymosin alpha-1 (thymalfasin)
  2. 2.PubChem — compound summary for Thymalfasin (CID 16130571)
Disclaimer: Educational content only. Not medical advice. Not instructions for human use. Research peptides and unapproved products may be restricted or illegal to market for human consumption in your jurisdiction. Consult qualified professionals and applicable law.
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