Thymosin Alpha-1

What Is Thymosin Alpha-1?

Thymosin Alpha-1 (Tα1), also known as Thymalfasin, is a synthetic peptide composed of 28 amino acids, identical in sequence to a naturally occurring fragment of the prothymosin alpha precursor protein produced by the thymus gland. As a research compound, it has attracted significant scientific interest for its potent immunomodulatory properties, extensively documented in preclinical and clinical research models.

Its underlying biological role relates to regulating T-cell maturation and supporting the body's adaptive immune response. Studies indicate that Thymosin Alpha-1 stimulates T-cell differentiation, enhances dendritic cell activity, and promotes the production of key immune signaling molecules such as interleukin-2 (IL-2) and interferon-gamma (Goldstein et al., 1977; Romani et al., 2004). It is approved in over 35 countries as Zadaxin for the treatment of chronic hepatitis B, hepatitis C, and as an immune adjuvant.

Mechanism of Action

Thymosin Alpha-1 is studied for its ability to act as an agonist of Toll-like receptors TLR-2 and TLR-9 on dendritic and myeloid cells, bridging the innate and adaptive immune systems (Romani et al., 2004; Camerini & Garaci, 2010). It also promotes maturation of T-cells, enhances antigen presentation, and modulates cytokine production to restore balanced immune function.

Research Use Only

Thymosin Alpha-1 supplied by Peptidos.eu is intended exclusively for laboratory and scientific research. It is not approved for human or animal consumption and must not be used as a medicine or diagnostic tool.

Disclaimer

The products offered by peptidos.eu are intended exclusively for research and laboratory use and are sold only to qualified professionals, institutions, or authorized entities. These products are not intended for human or veterinary consumption, nor for any application involving living organisms, including — but not limited to — diagnostic, therapeutic, or recreational purposes.

By Making a Purchase, the Customer Declares that:

• They are a qualified professional or entity, possessing the necessary competence, training, and facilities for the safe handling of chemical reagents;

• They will use the product in full compliance with all applicable local, national, and European Union laws and regulations;

• They will adopt appropriate safety measures during all stages of handling, storage, and disposal.

Prohibited Uses

• The product must not be used as an Active Pharmaceutical Ingredient (API) in the manufacturing or preparation of medicines intended for humans or animals;

• Any direct administration or use on humans or animals is strictly prohibited;

• Peptidos.eu does not endorse or permit the use of its products for the production, testing, or development of illegal substances.

Liability

• The purchaser assumes full responsibility for the handling, storage, and use of the product in safe conditions and in compliance with the law.

• Peptidos.eu shall not be held liable for any direct or indirect damages arising from improper use, incorrect storage, or unauthorized use of the product.

• Peptidos.eu reserves the right to refuse the sale to any individual or entity suspected of improper use of its products.

• In case of doubts regarding the safe and lawful use of the product, it is recommended to consult a qualified professional experienced in laboratory research.

Regulatory Compliance

Peptidos.eu does not claim or imply that its products are approved by the European Medicines Agency (EMA), the Food and Drug Administration (FDA), or any other regulatory authority. All information provided is for informational and scientific purposes only. These products are not intended to diagnose, treat, cure, or prevent any disease.